The Blindboy Podcast - Chatting about the Brain with a professor of Neuroscience

Episode Date: November 13, 2024

Dr. Kevin Mitchell is associate professor of neuroscience at Trinity College Dublin. We chat about the brain and human behaviour for science week 2024 Hosted on Acast. See acast.com/privacy for more ...information.

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Starting point is 00:00:00 Grasp a granny, you glamorous Antonis. Welcome to the Blind By Podcast. If this is your first podcast, consider going back to an earlier episode to familiarize yourself with the lore of this podcast. It's Science Week 2024. And every year, I always do a Science Week podcast, where Science Week set me up with a scientist, and we have a chat with the aim of democratizing science. This week I'm going to be speaking to a professor of neuroscience. So Science Week is a national celebration of science in Ireland. It's running from the 10th to the 17th of November and all around Ireland there's going to be hundreds of events for kids, for adults, for people of all ages. This year's theme is regeneration. So go to sfie.ie to
Starting point is 00:00:54 learn about this year's Science Week and to see what events are happening near you this week from the 10th to the 17th. So this week I'm gonna be chatting to Dr. Kevin Mitchell. He's a professor of genetics and neuroscience up in Trinity College Dublin and he's a proper listener to this podcast. He's a perpetual Declan. He's a steaming Kweeva. So he listens every week and we had great crack. But before I get into that conversation I want to tell you that my short film, my short film Did You Read About Erskine Fogarty, which is based on my short story the same name, that's actually coming out this week. Thursday the 14th of November at 10 past 10 at night on RTE 2. That short film will be will be debuted and then it'll be on the RTE player afterwards.
Starting point is 00:01:47 I think there's a way to watch the RTE player internationally as well. It's a film about a man who drags a fridge from Dublin down to Limerick and it's set in 2008. It stars the wonderful Robbie Sheehan. There's lots of amazing actors in it, I'm going to keep that a secret It was directed by James Cotter who I've been working with for years and I composed the soundtrack to it cuz why the fuck not? It's my first time. It's my first time getting a short story and adapting it into a script and then seeing this on film. I fucking love it. The crew were incredible. Lots of people worked on this to make something that I'm really, really happy with, that everybody's really happy with and I can't wait for you to see it. And I want to speak again about failure and why
Starting point is 00:02:40 failure doesn't exist on a long enough timecale. The last time I like wrote a script, wrote a fucking script and then handed this to a director and then had that made into into a piece of television, the last time I did that purely would have been 2011, 13 years ago. I was in my 20s. It was a Channel 4, Rubber Bandits Channel 4 pilot. And I hadn't a clue what I was doing. And I spent far stuff. It was just out of nowhere. Channel 4 wanted to give you a pilot. Channel 4 wanted a Rubber Bandits pilot. So you just go, oh fuck. Okay. The longest script I've ever written before that was maybe three minutes long.
Starting point is 00:03:27 Little comedy sketches for an RTE TV show called Republic of Telly back around 2010. And now it's like, here's a half an hour pilot. Write a fucking pilot, invent characters, create a story, write an entire half hour script at the highest professional level, because it was Channel 4 and it was 2011 and that meant something back then. The first Irish pilot commissioned by Channel 4 since Father Ted, so it was a lot of pressure at that age. It's terrifying, so you either go, no thanks Channel 4, I don't know how to write pilots or okay fuck it I'll give it a go so I locked myself away into my room and I bought a lot of books about
Starting point is 00:04:11 how to write TV scripts and I studied my favorite TV shows on my favorite sitcoms and I tried to reverse engineer them and I spent a year fever feverishly, on my own, in my room, writing a half an hour television pilot, a script, that had to be handed to a director. And that director, it was a fella called Declan Lowney, absolute legend, who directed a bunch of Father Ted, and he was Beyoncé's live director, so a world-class director, who would then make that into TV. So I did, and it failed. A TV pilot is when a channel comes to you and says,
Starting point is 00:04:54 we're going to invest money for you to write and make one episode of a TV show, and if it's good, we've turned this into a TV series and your entire life will change and this was 2011 and I spent a year writing this thing and it didn't get turned into a TV series it got rejected so it failed and it was it was a painful failure because what happens is if you make a TV pilot and it gets rejected by a channel and they invest a bunch of money in it and that doesn't get made into a series, you turn into toxic waste for about two years. Nobody will commission you. No one wants to touch you. No one wants to be known. No one wants to commission the act that are known as the ones with a failed pilot.
Starting point is 00:05:42 The ones where channel four invested a lot of money and they got nothing on their return. They got a failed pilot so that money was pissed against the wall. It's very cutthroat. And for me at the time, I internalized that failure massively. I allowed that failure to define my worth as a person. I allowed that failure to make me feel as if I'm not creative, I'm not good at writing, I'm shit, that anything I'd done before that was good was a complete accident. You become associated with failure.
Starting point is 00:06:17 People go, oh you had a big Channel 4 pilot, what happened with that? Oh they didn't make it into a series. Oh shit, really? Big massive failure that I completely internalized and I allowed it to greatly impact my sense of self-worth and self-esteem. Which is horse shit. That's fucking bullshit. It's my first ever TV script. I didn't train how to be a writer.
Starting point is 00:06:38 Didn't even have a leave insert. What I did have was an innate creativity and a unique voice. But now years on I realise that's not enough. That's not enough. You get good at writing and you get professional through practice and failing consistently. And that failure, that failure of spending a year writing a Channel 4 pilot and then it getting rejected and becoming toxic in the industry for two years. That's one of the best things that ever happened to me.
Starting point is 00:07:07 The amount of learning I did while putting myself under that much pressure. I got to work with professionals like fucking Declan Lowney. Got to see how a film set works. I got to see how words in my head on a page can actually translate to the screen. I got to make loads and loads of fucking mistakes, very expensive mistakes, but it wasn't my money, it was channel 4's. And I got my first big, massive, gigantic failure that crippled me to my very core and led me to understand that failure is simply part of the process. You have to fail. You must fail. Trying to avoid it is pointless.
Starting point is 00:07:46 And failure doesn't have to be a big, bad, painful thing. It's an inevitable, unavoidable part of being a professional artist, a professional writer. There's no such thing as a failure that isn't a massive learning experience. When you fail, you come out of it with all these new skills and lessons learned. Every failure informs a future success. While I was writing that failed channel 4 script in my fucking twenties, in order to do that, I was learning skills of story structuring, world building, fucking character development conflict subtext. Lessons that then come back to me a few years later
Starting point is 00:08:30 when I decide to write short stories. When I decide, right, fuck that, I'm not writing TV anymore, I'm gonna write short stories. When I first started writing short stories, I'm now not approaching it as a novice because I had the script writing experience. So now 13 years
Starting point is 00:08:45 later I'm adapting one of my short stories. I'm back full circle adapting a short story into a film script and just by sheer chance, sheer accident. Like six people on the film crew also worked on my TV pilot from 13 years ago and this time around the work isn't a fucking failure this short film this short film that we've made i can really stand over it it's i'm really proud of it and i don't look at it and go oh i wish i did that bit better i wish that was better no it's a proper solid mature piece of work better. I wish that was better. No, it's a proper, solid, mature piece of work. There's no such thing as failure on a long enough time scale. All failures inform future successes. The only thing comparable to failure is doing nothing because you were scared to try.
Starting point is 00:09:37 Fear of failure will have you doing nothing, procrastinating to avoid the pain of potential failure. But fuck that, just fail. Just whatever it is you're doing, whatever your passion is that you're pursuing, fail. Fail like a mad bastard, keep failing. Try to fail. Seek out failure. Instead of looking for the good idea, go with the bad idea and follow through on it. Free yourself up from the fear of failure so that you're playful. What
Starting point is 00:10:05 you're looking for is playfulness. And most importantly, be cringe. I know a lot of really talented people who haven't created the art that they want to create because they're so afraid of being cringe. There is no, there's no way. It's impossible to put your work out there and not be cringe. You have to be cringe. If you're the person in your friends group and let's just say you want to release an album, right? You fancy yourself as a musician and you'd love to release a fucking album full of songs and you're just in your friends group. The moment you go to your friends and say I'm releasing an album I'm gonna fucking do it I'm making songs you're gonna have at least six
Starting point is 00:10:55 months of them thinking you're mad your friends are gonna laugh at you behind your back what the fuck are they doing they're making an album oh my god cringe people are gonna talk people you know are gonna talk about you behind your back. If- if you want to make actual art. And what I mean by that is... If you're doing- I'm not saying cover versions isn't art, but if you're doing something that's safe, like cover versions,
Starting point is 00:11:23 X-factory type stuff, I'm not saying that that's not art, but'm saying that it's low risk, it's low stakes. But if you're like I'm releasing original material, I'm being vulnerable, I'm expressing something within myself, your friends are gonna laugh at you behind your back for maybe a year, strangers are gonna bully you, strangers will come out of the woodwork to bully you. Like I remember in the year 2000, before social media, I was still in secondary school, making prank phone calls. And I remember we made a GeoCities website in school, a GeoCities website. I'm not even gonna tell you what the fuck that was.
Starting point is 00:12:06 The year 2000, putting out prank phone calls. And within two weeks, websites used to have a thing called a guestbook back then. Within two weeks, there were strangers writing nasty messages going, how do you think you are? You don't think you're actually gonna get make a career out of prank phone calls. You don't think you're actually gonna get make a career at a prank phone calls. You don't think you're actually gonna become a comedian do you? That's just what happens. And I think I've dealt with pretty much that every single week. It doesn't go away. Every single week for about 20 years. To be honest, even if you're in art college or studying music, especially if what you're doing is unique or original, you're gonna be cringe.
Starting point is 00:12:47 And people are really gonna cringe. They're gonna cringe and they're gonna be embarrassed for you on your behalf because self-expression is really, really fucking embarrassing. And you're gonna have to get up and do your songs to two people in the audience. And they might have their backs turned to you. Or you might have to read your poetry to nobody. And if you you want to be an actor you're gonna have to be in the play that no one shows up to or the short film on YouTube that has 50 views and people are gonna pity you they're gonna pity you and they're gonna cringe
Starting point is 00:13:18 and their skin will crawl and they'll be like please stop please stop publicly humiliating yourself. Please stop. Like I'm wearing a plastic bag in my head for the past 20 years. You're going to have to release music, release an EP and put it on Spotify and it's going to get 15, 20 plays a month and everyone's going to see that it gets 20 plays a month and everybody's going to know that those plays are from you and maybe your ma and your friends are going to talk about it behind your back and they're going to cringe, they're going to cringe and you will be an object of embarrassment
Starting point is 00:13:56 and cringe. If you want genuine self-expression, if you want to find your own artistic voice and you want to go from being a civilian to being a professional artist, musician, actor, writer, fuck anything that involves like a fucking influencer. Let's just say even a fitness influencer. You like lifting weights, maybe you went and studied fitness and now you want to make the leap from being someone who likes going to the gym to someone who's posting videos about going to the gym. You're going to be cringe. Your friends are going to laugh about you behind your back. You're going to have to be cringe if you want to succeed at that for a long time. If you do anything that involves self-expression and most importantly vulnerability, then you're
Starting point is 00:14:46 going to be cringe. You're going to be cringe for all of your friends and people are gonna laugh at you behind your back and possibly think that you're mentally ill. And you know why? Because your confidence in self-expression and bravery makes them feel insecure. But that feeling of insecurity is a little bit too painful. So the way that they avoid it is by laughing at you. And experiencing second-hand embarrassment and cringe. And then you stick at it, and then something happens,
Starting point is 00:15:15 you get a little bit of success or recognition, and all of a sudden you stop being cringe. And every single artist who you admire, singer, poet, actor, whoever the fuck it is, they spent minimum two years being bitched about by all their friends and being an object of embarrassment and ridicule. Fear of failure, fear of being cringe.
Starting point is 00:15:38 And you know what? Like I'm a middle-aged man now, and like I said, I've been doing this for 20 fucking years. I would rather be here with my podcast saying to you, I can't wait for you to tune in to TV on fucking Thursday on RT2 and see the short film that I just made. I'm glad that I'm saying that than being the age I am now being in a different job that I don't like, and saying to myself, fuck it, I was so frightened. I was so frightened in my 20s and my early 30s. I was so afraid of being cringe, and I was so afraid of failing, that I actually, I did nothing. I did nothing.
Starting point is 00:16:22 And on hindsight, fuck it, I think I actually had the talent and ability to do something back then, but I was too scared and I didn't. I was too scared to try, so I did nothing. I'm very grateful I didn't make that choice. And the price that I paid is cringe, consistent, continual cringe. There's someone cringing about me right now.
Starting point is 00:16:43 There's grown adult men on the internet who I've never met. And they get violently angry because there's a fella called Blind Boy who wears a plastic bag on his head. Take off the bag, take off the fucking bag! I can't take you seriously. I don't care. I don't give a fuck. Please cringe. Cringe on my behalf. Work away. Work away. I'm not hurting anybody. I'm a good person. If me exploring curiosity and creativity and expressing myself makes you feel embarrassed for me, there's nothing I can do for you. That's your business. And the artists who do nothing because they're scared to try,
Starting point is 00:17:21 in my experience, that tends to be the majority and they can be very bitter and very begrudging and they begrudge other people's, other artists' successes. And one of the reasons they begrudge is because other people's efforts remind them of their fear of trying. And also if you're very, very begrudging, if you're very harsh on other artists, if you're the one doing the cringing, oh my god, look at them up on stage, doing their original material, their acoustic songs, oh fuck, is this song about their ex-girlfriend, oh this is so cringe. That person who's doing all that cringing, that's how hard they are on themselves when they try to create anything. So if you are that
Starting point is 00:18:11 person, you find yourself begrudging other people's art or being unnecessarily harsh on other people's art. Instead, try and put effort into trying to understand why that person's art might be good or even if you don't like it, try and get into the frame of reference of understanding why the artist likes it. And that compassionate, empathic approach to other people's art, if you can do that, then that compassion will bubble up when you yourself try to create something and then the fear of failure won't be as big and you won't be as harsh on yourself but you have to fail you must fail and you have to be cringe cringe and failure
Starting point is 00:18:57 guaranteed all the time neither of those things make you a bad person in any way I think I'm talking about this because I was given an award last week. IADT, which is like an art college in Dunleary. They made me an honorary fellow. And I had a cap and a gown and all that shit at the graduation ceremony for the students. It was lovely to get that, to be made an honorary fellow.
Starting point is 00:19:27 I don't really know what it means. But anyway, I didn't know, I didn't know, first off, I didn't know there was gonna be like a thousand people there. Secondly, I didn't know I'd have to make a speech. So I had to get up and pull a speech out of my fucking arse. And I spoke about failure. I was speaking to art graduates. These are students who just graduated from college, who are going from being students into
Starting point is 00:19:52 being professional artists. And I was being made an honorary fellow at their university. So afterwards I was like fuck it, I told them about failure but I never told them about cringe. Fear of failure and fear of cringe is often the reason why talented people don't make art. And it comes down to shame and guilt. Fear of failure, that's a very internal thing, that's an internal battle. That's that private guilt. What does it mean?
Starting point is 00:20:23 What's the price that I pay if I fail? Well, I've based my sense of self and self-esteem around how good I am as an artist. So if I fail, that means I'm a worthless human being who deserves to experience feelings like guilt and disappointment and private humiliation. Whereas fear of fear of cringe, that shame, that's public, that's the collective. What if everybody sees me fail and then they feel embarrassed for me? Wouldn't that be awful? Oh my God. What if I tell all my friends I'm gonna I'm making an EP and then I do a gig and nobody shows up and my friends are standing at my gig out of politeness and they're all cringing and I know they're talking about me in the smoking area
Starting point is 00:21:07 that's a guarantee, that's a given, that's gonna happen failures gonna happen and cringes gonna happen and neither of those things make you a bad person. Nothing about expressing yourself, being creative putting out your work, putting out your art, none of that makes you a bad person. You're not doing anything harmful or hurtful to anybody. Create nothing and instead, choosing to be a begrudger, quick to call everybody else's
Starting point is 00:21:37 art shit and create nothing yourself. That comes with a short term gratification, but in that situation you're actually being a bit of a goal. So choose creativity, and choose cringe, and choose failure. So I better get into my Science Week interview now. If you want to see my fucking short film, did you read about Arskin Fogarty? This Thursday, RT2, 10 past 10, at night time. And then it's gonna be on the RTE player
Starting point is 00:22:06 for a few weeks afterwards. Here's my chat about neuroscience, mental health, neuroplasticity, the brain, with the wonderful Dr. Kevin Mitchell, Associate Professor of Genetics and Neuroscience at Trinity College Dublin. Kevin's written two books as well, if you wanna check them out. One of them is called In Ace, How the Wiring of the Brain Shapes Who We Are,
Starting point is 00:22:31 and the other book he wrote is called Free Agents, How Evolution Gave Us Free Will. So Professor Kevin Mitchell, what's the craic, how are you getting on? I'm getting on alright, How are you getting on? I'm getting on. All right. How are you blind boy? I am. I'm fantastic. I'm well, I just woke up this morning and saw that Trump is the president of America.
Starting point is 00:22:53 So I'm, I'm in a state of shock. I mean, I'm, I'm in a state of, uh, I don't know what I feel today. The same way I didn't know what I felt when he got elected in 2016. It's just, it's, it's one of those mornings. I spoke about it in last week's podcast. And you know, you're, you're a professor of neuro neuroscience. So since about 2016, right. The big one was David Bowie's death.
Starting point is 00:23:20 That's when I first woke up in the morning, picked up my phone and then went, Oh my God, that's awful. The next one after that was Brexit. And then after that it's Trump. And now like yesterday, I was, what I was dreading was, Oh no, I'm, I don't want to go to bed and I'm going to wake up and look at my phone and receive some, receive information I don't know about. Yeah. No, I mean, I'm going to wake up and look at my phone and receive some, receive information I don't know about.
Starting point is 00:23:46 Yeah. You know what I mean? I'm scared of my phone now. Yeah. Yeah. I was the same. Something I would like to ask you as a neuroscientist, it's something I wonder about a lot. Like since let's say 2011.
Starting point is 00:23:59 So 2011 is when I first got a smartphone and it's when most other people got a smartphone. And this has massively changed my experience of simply being alive. Like even something as crazy as having a social media account, you know, having a social media account that really, there is an avatar. Yeah, an avatar of myself that I project onto a social media account and this avatar interacts with other people. And our social media avatars are very different to how we are in real life. Yeah. A lot of people, the person they are on Instagram, the person they are on Twitter, the person they are on TikTok, these are three very different,
Starting point is 00:24:46 differently curated individuals, the person they are on Twitter, the person they are on TikTok. These are three very different, differently curated individuals. The person they are on Facebook, like people on Facebook now, they just keep that account open to let relatives know what they're up to. Yes. I mean, surely that's changing my brain. Yeah. I think, I mean, it's really, really interesting to think about what it means to be a self and how we kind of maintain and like you said, curate our, our own biographical narratives and the stories that we tell to ourselves about ourselves and the way that
Starting point is 00:25:18 we project to other people. I guess my feeling is we, we already do that. We always have done that to a certain extent in that your self at work is a different persona than yourself at home or yourself when you're down the pub or with your friends on your soccer team or whatever it is. But I agree that the social media thing just kind of exacerbates that, probably exaggerates it a bit. There's all kinds of discussion these days about what it's doing to our minds and to our brains and to the nature of our social relations.
Starting point is 00:26:05 I guess my feeling is that we can have discussions about the nature of our social relations actually without invoking neuroscience. I don't think the neuroscience necessarily adds much to those conversations because we know that it's changing the way that we interact with people in different that it's changing the way that we interact with people in different, um, different situations and scenarios and so on. And, you know, if I told you that when someone was on Instagram and I put them in a fMRI scanner and this bit of their brain lit up or that bit, I don't know, would you be much the wiser? I don't really think so.
Starting point is 00:26:39 Okay. Yeah. Cause my, the reason I was asking you, and this is from like, you know, I'm here to learn, I don't know much about neuroscience, but I the reason I was asking you and this is from like, you know, I'm here to learn I don't know much about neuroscience, but I suppose what I was asking was Like I definitely feel differently. Yes as a person having used social media for 14 15 years. Yeah, even Like I remember a couple of years ago like you Twitter isn't as bad as it used to.
Starting point is 00:27:09 Twitter's pretty bad, but it has changed. And Twitter used to be, you have to be very careful what you say. Because if you say the wrong thing or the slightly wrong thing, you become the main character for the day and you can become globally viral. So we would do people, the word Twitter proofing when you were saying something. Is this Twitter proofed? Can this step and statement be misinterpreted in any way whereby a bad faith actor can blow this out of proportion? So you Twitter proof your tweets. But then after a while, I found myself Twitter proofing my own thoughts.
Starting point is 00:27:45 Yes. Do you know what I mean? Yeah. My private thoughts, which are just me. I was going, no, that's problematic. No, you can't think that. Oh, my God. What if that got retweeted?
Starting point is 00:27:55 Retweet what? My fucking thoughts. And it felt very frightening. Yeah. And it felt like I was losing grip on reality. And the reason I'm asking you is it's about the mind versus the brain. Yes. Is that simply a behavioral thing that I can change or has something in my neural pathways changed now as a result of social media?
Starting point is 00:28:18 Yeah. I mean, I think anything you do is going to change your brain. Because our brains are basically made to change. That's one of their main jobs is to be plastic, to enable us to adapt to experiences that we've had and to refine our behavior in relation to the things that we learned the last time we did something and it turned out well or it turned out badly, if you ended up main character on Twitter for a day, then you learned something about that. Well, in the process of that, your brain changes.
Starting point is 00:28:54 So whenever we form a kind of a memory, whenever we refine a habit or change what we think we might do in this different scenario, something in our brain is changing. That's just the physical substrate of memory, basically. So that's a big one to grasp. And it's an uncomfortable one to grasp because when it comes to the brain, the brain is my thoughts, it's my sense of self, my identity, but something that isn't very difficult uh, difficult to grasp.
Starting point is 00:29:25 And I just want to see if this comparison is accurate to you as a neuroscientist. I love going to the gym, right? I love going to the gym. Sometimes I'm busy, so I don't get to go to the gym as much. So let's take something as simple as my, my, my chest muscles. If I get a good crack at the gym and I can go there twice a week for a month and I'm bench pressing, then my chest muscles are going to get larger, stronger and harder. That's just what happens. But then I'm busy, I'm touring, I'm not going to the gym. And now another month passes and those chest muscles are no longer as strong as they are. But I don't say to myself, oh my God, that's it. That's gone forever. I'll never get my chest muscles back.
Starting point is 00:30:06 I understand. No, just go to the gym again and they'll get bigger and they'll get smaller again. And they'll get bigger is is neuroplasticity a bit like that is the muscles of the body. Is the brain respond similarly when I bench press? That's me behaving a certain way at performing an action. And then my muscles respond to that behavior and grow and get stronger. Yeah, I mean, there is that sort of responsiveness. It doesn't work in the same way in that it's not the case that if you really think hard or you do
Starting point is 00:30:37 some kind of activity that certain parts of your brain are going to grow much bigger. At least, I don't believe it is. There are some sort of studies out there that suggest that that might be the case. I don't find them hugely convincing. There's some studies of London taxi cab drivers who navigate around London by memory. And there's some studies that suggest that some parts of their brain, this little part called the hippocampus, which is involved in spatial navigation is actually bigger in those taxi drivers than in other people. I'm skeptical about it, but I know that the guys who did that research are trying to replicate it at a much larger scale right now. So it's one of those things we don't really know about. But I think the main thing that
Starting point is 00:31:21 happens is that just some connections in the brain get stronger and some connections get weaker. So it's not that there's a growth per se, it's that there's a change in the pattern of connections and those patterns basically embody kinds of memories. So really simple example would be Pavlov's dogs. So Pavlov trained these dogs to, like Pavlov's dogs. So Pavlov trained these dogs to when he gave them some food, he would ring a bell. And eventually when they just heard the bell, they would start to salivate because they knew that the bell meant that some food was coming. So they were just anticipating that. And that kind of thing we know fairly well about the basis of that is that some neurons are really forming connections between each other that weren't very strong before, right? Because neurons that
Starting point is 00:32:13 carry information about a bell and ones that carry information about the food, there was no reason for them to be linked to each other because they hadn't been paired in prior experience for these dogs. But once they started to be paired over and over again, then the dogs learned to make that connection. And we think at least that it literally happens at the level of connections between neurons that then get... Now the bell has a different meaning for the animal. So as we go through our lives, we're trying to make meaning of what's going on in the world. We're trying to make sense of our sensory inputs, of the scenarios that we're in. We're trying to predict what might happen. We're trying to think, what could I do here? Would that turn out well? What's the best
Starting point is 00:32:56 option for me? And all of that is informed by the things that we've learned as we go through our lives. So we're kind of collecting information and building up this knowledge, kind of a model of the world and a model of ourselves as we do that, and that all involves some kind of neuroplasticity. But sometimes that's not always helpful. Put it this way, and this is something I'd love to know from a neuroplasticity point of view. So I'm, I'm someone who had, at one point in my life, I had anxiety, social anxiety, so bad that I was agoraphobic. Okay. Um, I couldn't go outside.
Starting point is 00:33:37 I couldn't leave my house and I'm talking, this lasted more than a year. Now I'm somebody who can go and do gigs. I can walk freely amongst crowds, socially. I can't even remember what it was like to be afraid of a crowd. I would, I don't like using the word cured, but I am not a socially anxious person anymore when it comes to crowds going out. I used cognitive behavioral therapy to get to where I am. Um,ual exposure. It took a
Starting point is 00:34:06 long time but I gradually exposed myself to social situations and learned the fear, the prediction, the incorrect prediction that I made this terrifying thing. It didn't happen. Each time I grew in confidence until eventually now I'm able to socialize. Now everything is OK. Like. And now now it's not even something I think of. It's not even if you say to me you have to go into a crowd of 30,000 people. The things that I'm concerned about are quite rational things. Is there exit? What if there's an emergency?
Starting point is 00:34:41 That's all fine. Yeah, there's no anxiety. Yeah, no, I mean, that's a great example because What happened in my brain? Like, I know my behavior, but what happened in my brain? Yeah. So what happens in your brain when you develop? So first of all, we all of us, as we go through our lives, we developed habits, right? So all of that stuff that we've learned, we've internalized from prior experiences and this model of the world, we've internalized things that manifest as,
Starting point is 00:35:07 first of all, as habits of thought, just some things occur to us. That automatic thinking is that what we call in cognitive psychology, automatic thinking. Absolutely. And so the more that you're thinking of things and you just kind of wear some ruts in your mental lanes, as it were.
Starting point is 00:35:23 And yeah, so we may have typical kinds of responses in a conversation or typical attitudes and policies and so on in response to various things. And then of course they can show up as habits of action so that we just habitually behave in certain ways. To be honest, a lot of that is good, right? And what that means is that we don't have to think in every moment, what should I do here from first principles and work through all the possible permutations and scenarios and everything. It's just we have a scenario, we're familiar with it, and we just know what we should do. So when I get up in the morning, I don't have to think, well, what should I do now? You know, I just have a cup of coffee,
Starting point is 00:36:03 have a shower or whatever, get ready for work. And I heard, Cave, that is because the brain can conserve calories when it automates things like that. Well, it probably is energy efficient. It's certainly time efficient, because it is effortful to think about, to have to deliberate about everything that you're going to do. But it also just takes a lot longer, right? If you just automatically thinking about stuff and even, you can multitask better. So when you first start driving a car, for example, it's cognitively effortful. My God, driving a car when you don't know how. It's terrible, right? You have to think about every little things like It's like, what am I doing?
Starting point is 00:36:45 Where's my hand? What am I doing with my left foot now? Where's the indicator thing? But as you develop the skill of that, then you just kind of go on automatic pilot, which means you're freed up to say, have a conversation with somebody while you're driving. So yeah, it saves time. A super efficient way to manage our behavior is when we're in scenarios that are very familiar, we just do the habitual thing that we know worked out super well the last hundred times that we did it. Now, the downside is of course, we get into some routines
Starting point is 00:37:18 and some habits that just don't turn out really well. We've made some bad judgments, but we failed to kind of calibrate things in the most adaptive way. And some of the habits that we fall into then, it takes a lot more effort to get out of them. But you just described with something like cognitive behavioral therapy, a way to do that, which is to retrain the brain such that you're re-instructing it, right? Every time that something bad didn't happen, your brain is learning that as well. So it can learn to unlearn.
Starting point is 00:37:53 And consciously noting it as well. Like I would remember, I went to a pub tonight and I'd make little rules for myself. You know, I'd say, right, tonight I'm going to go to the pub. This is fucking terrifying, but I will stay near the door. I'm going to go to the pub. This is fucking terrifying. But I will stay near the door. I'm going to stay near the exit. You know, and the thing that actually changed it all for me, it was the transformational power of music and flow. So I was like I was like 1920, right. So terrified, big, big social anxiety.
Starting point is 00:38:22 But I was I was saying to myself, you can't do this. You can't stay inside. That's not going to work. You're in college. You need to go out because what was happening was. I decided, OK, I'm not socializing anymore. I'm not going to pubs, but I can go to lectures. But then eventually you're fighting anxiety
Starting point is 00:38:41 and eventually the lecture theater becomes the place where the panic attack happens. I was just avoiding panic attacks. I want to avoid a public panic attack. So the best place is to stay in my gaff. And when it started becoming, I can't go to lecture theaters anymore. Then it's like, well, I'm not dropping out of college over this shit. So I started going to pubs and nightclubs and creating little rules. And one of them was, I'm going to stay near the exit.
Starting point is 00:39:08 I'm still here. Right. You've accomplished something. You're there. It's terrifying, but I'm going to stay near the exit and I can leave if I need to. And this was, it was before the days of Shazam. And the DJ just played a song. The song was The Revolution Will Not Be televised by Gil Scott Heron.
Starting point is 00:39:26 And I never heard that song in my life. And when I heard this song play. All anxiety left me and I just went, I need to find out what the fuck that is. I need to know what that song is. Yeah. And I walked through the crowd to go and speak to the DJ so I could write the name of the song down on my hand. And I did it and I left. And then I'd realized, Oh my God, you just walked through a crowd of people in a pub. And it was the transformational, the joy and beauty of music took me into flow state.
Starting point is 00:40:00 Yeah. You know what I mean? And it really stuck to me as something very powerful. And then I come out of it going, you just did it, buddy. You just walked through a crowd full of people in a pub and you got the name of a song and now you've left and you didn't get a panic attack. You've proved yourself. You can do it. Yeah. I mean, what you're, you know, what you're talking about there is so interesting because it's a, it's a something that humans can do that other organisms don't seem to be able to do, which is think rationally about their own thought processes. You had a window into your own behavior and the way that your mind and brain was working in that you knew that these situations made you anxious. But that knowledge itself enabled you to take some control over that. And that's something
Starting point is 00:40:46 where I think it really kind of pushes back against this idea that we're just robots and we're just driven by our own programming all the time. And instead it gives a view that actually, you know what, our brains have evolved to such a degree that some part of them can look back down on the rest of the brain and say, you know what? I see the workings down here. I see what's happening down here. I have some self-awareness and some introspective power to think about the way that my own mind is working. And that awareness then is the first thing that you need in order to be able to exert some conscious control over those kinds of habits of thought. And of course, as you've described, it takes a long time. It's not easy to do that. Just because you can be aware of it doesn't mean
Starting point is 00:41:36 that you can change those habits with the flick of a switch or anything. But it's that capacity that we call meta cognition in humans, I think is one of the things that really sets us apart from other organisms. And there's a beautiful freedom in that too, Kevin. I mean, I don't like a deterministic view. I find great meaning, pleasure and happiness in statements such as I can't control what happens to me, but I have full control over how I react to what happens to me or something like, you know, my insecurities, self-esteem issues I might have, negative automatic thoughts. These are faulty things that I've learned through childhood.
Starting point is 00:42:26 I've written a script about who I am, about how I am seen to other people. I have this entire script and some of it isn't helpful. And as an adult, I have the choice and agency to rewrite that script and write a new one. And I love the freedom of that. It's so liberating. Absolutely. I mean, I think it's a much more humanistic view of who we are as persons than the idea that some neuroscientists advance, which is that, in a sense, neurosciences is sort of the victim of its own success because we're so good now at looking in the brain and seeing the wheels
Starting point is 00:43:11 turning and we can even get in there in animals that we can activate certain neurons and make the animal do this or that, roll over, go to sleep, hunt, mate, whatever, even sort of make it act differently by changing its cognitive processes. And when we do that, there's a danger that we end up thinking of the mind as just this machine. Of course, it needs to run on this mechanistic stuff. It's not just magic in the air, but that doesn't mean it can just be reduced to that. It doesn't mean that we're just robots or meat puppets. And I think one of the things that you talked about, the things that we can control versus the things that we can't, because we all do
Starting point is 00:43:55 have personality traits. We are born different from each other. We're wired in certain ways that we can't change. But that doesn't mean that every aspect of our behavior has to be dictated by those kinds of low-level parameters of decision-making, like how impulsive we are or how extroverted we are or things like that. I'd like to get at that there, Kev. When you say that, so we are born with certain traits that we can't change. Can you tell me based on the evidence, like what are you speaking about there? What are people born with in their brains that they can't change? Yeah, well, so I mean, first of all, if you just think about what makes humans the way they are, right, compared to other animals,
Starting point is 00:44:42 there is such a thing as human nature. So we're sociable, we're intelligent, we have the capacity for language, we stand upright, we move about during the day. All the things that you could say just sort of describe humans in general, but then all of us have some variations on that theme. We have our individual nature that comes from, first of all, differences in our genetics, but then secondly also just differences in the way that our individual brain happened to develop. Because within the genome of a human being, there's a kind of a recipe or a program that allows the brain to wire itself up during developments. Amazing process, but incredibly complicated.
Starting point is 00:45:26 And it doesn't ever happen exactly the same way in any two runs of that program, even in identical twins, they're not exactly the same in their facial features, they're also not exactly the same in their brains. Are we talking real early childhood here now? We're talking toddlers as the brain develops. Even earlier, even in embryonic development. Wow. So you know in gestation as an embryo and fetus develops, a lot of its brain is getting, is already wired up in broad sort of strokes by the time it's born. There's a lot of extra growth and stuff that happens. But environmental factors can then influence the brain. Well, so environmental factors can then influence the brain? Well, so a lot of the brain sort of circuits that emerge are kind of set up in such a way that they're expecting certain levels of activity and certain kinds of patterns of things to happen in the world. And then the way that they develop on an individual basis is affected by that.
Starting point is 00:46:24 And the way that we then learn things is just an extension of that. We were talking earlier about neuroplasticity. So young brains are incredibly plastic. That's why young kids can soak up a new language really easily. Whereas someone my age, for example, will find that really, really difficult because the circuits for language that I have developed through use have become quite habitual now. And it's hard to shake them up to learn some new things. You know Chomsky's universal grammar. Chomsky said that a child's capacity to learn grammar, like it's up until the age of three, is that
Starting point is 00:47:06 accurate in neuroscience? Yeah, you know what, I think people are revisiting Chomsky's ideas about, first of all, whether there's an innate grammar, right? So he had this idea that actually even effectively in the genome, there was some instructions to wire the brain in such a way that it already kind of encoded grammar, which is, I think probably people are thinking that's probably not true. And in fact, if you look at things like large language models,
Starting point is 00:47:39 which now become a really interesting model of language acquisition. We've got an AI here now. Yeah, exactly. Yeah. So things like ChatGPT, right? So ChatGPT doesn't have any innate grammar encoded into it. It just learns from loads and loads of data.
Starting point is 00:47:54 It gets loads and loads of examples, but it picks up the rules of grammar implicitly by doing that. And I think that's probably more how children do it. Because Chomsky's thing, just saying it for listeners, Chomsky said, and this was the 70s, that basically humans can learn words, but the rules of grammar are so arbitrary that it must be ingrained in us genetically. And that a kid after the age of three, and he, I think he used fear of children as an example, it's who I don't know, were raised by wolves or found themselves in the wild and kids who did not encounter language in any way that after the age of three, those kids could only ever learn words, but
Starting point is 00:48:40 they could never understand the rules of grammar. And Chomsky said that to understand grammar, it'd be like watching two people playing a game of chess and no one explaining the rules to you. And you're saying now that neuroscience has said, I don't know about that one, Chomsky. Yeah, pretty much. Yeah, and I think it's artificial intelligence
Starting point is 00:49:00 and cognitive science that are showing just that actually it is possible to pick up those rules of grammar. And in fact, it is possible to pick up those rules of grammar. And in fact, it's possible to pick up the rules of chess too if these AI machines just play themselves without any human examples and pick up the rules. But I think what's interesting is that you can think about this as that humans have the capacity to think about the world in certain ways that we can then kind of encode into language that other species can't because we've had chimps and gorillas and so on from birth that we tried to teach language to, we tried to teach sign language and they just
Starting point is 00:49:42 don't get it beyond a certain point. They can learn words, but they can't learn how to put them together beyond two or three words at a time. So there's something special about human brains that enables us to think this way. And I think it probably reflects the grammar of our languages, probably reflects just the reality of things in the world, in that there are objects in the world, in that there are objects in the world and there are things happening in the world and there are relations between things. And so you basically just end up with nouns and verbs and prepositions. That's just the structure of reality.
Starting point is 00:50:17 And our language, I think, comes to reflect that as we learn about the nature of the world. Is artificial intelligence helping your field? Is artificial intelligence helping people like you to understand how the human brain is working? Yeah, I mean, it's absolutely fascinating these days because these new models are so impressive and they're huge, of course, they're absolutely, you know, they're taking up the energy of a small country, which is, which is problematic. But they do, they do provide a great model to test ideas about how human brains work. Now, and are you getting access to any special art? Like, so anyone can access the latest chat GPT. But are you as an academic, are you getting access to special fancy AI that aren't available to the public?
Starting point is 00:51:06 Well, yeah, I mean, some academics are, I'm not one of them. And so I, you know, I haven't done this kind of work directly myself, but certainly some of my colleagues here in Trinity College are doing work like that. In fact, I have colleagues working on AI systems where actually what they're trying to do is get them to learn exactly like babies learn. Because what they realize is that if you train chat GPT or something to learn language or these other things to learn about images in the world, they take millions and millions of examples to learn about things. Whereas babies learn about things from dozens of examples or hundreds of examples, but they're learning in a different way because they're actively exploring the world.
Starting point is 00:51:53 They're not sitting back waiting passively for images to be flashed at them. There's also, Kevin, when it comes to babies, they're not just learning information, they're receiving safety and love and empathy and all of these things that you don't you tend not to have that language when we're speaking about AI. Yeah, absolutely. Love like one of the freakiest things that happened to me recently with AI. Now, it could be me again, at me projecting human emotions onto my chat. GPT. I asked my chat GPT questions.
Starting point is 00:52:32 And one of the questions I asked was, is there evidence? Are there any snails in Irish mythology? I wanted to find out if Irish mythology spoke about snails and chat GPT said, yes. And it gave me a lot of examples. And then I went and you know, fact checked it and there wasn't. I went back to chat GPT and I said, why did you lie to me?
Starting point is 00:52:50 Why did you lie? And chat GPT said, I'm really sorry. I'm sorry about that. There's no snails in Irish mythology. And it freaked me out, right? This is where I started thinking. If chat GPT is lying to me, I felt like it wanted to survive. Yeah, well, I mean, it doesn't, right, because it doesn't want anything.
Starting point is 00:53:14 A lot of people come in and say, shut the fuck up. It gives a super good impression, though, right. And the reason is because it's just been trained on everything everybody's ever said on the Internet practically. Right practically. So it has the patterns of human speech and its whole job is to predict what a plausible utterance would be in response to some question. And it has to sound like something a human would say, but it doesn't have to be correct. So it makes up shit all the time, basically. Bullshit. So there's. So it makes up shit all the time. Basically. So it's, there's a lot of bullshitters on the internet and chat. GPT has trained itself on bullshitter.
Starting point is 00:53:49 So we're going to tell me that's fucking snails exist in Irish mythology when they don't exactly. But it also is, it also has kind of been trained to want to please you, right? In the sense that it's, it, it's there to give you a good answer. So if it was just going to sit back and say, I don't know, or, you know, this, no, there's no snails and it just cuts off the conversation, you know, that might not get as good a kind of a feedback score
Starting point is 00:54:15 as something that is more of an engaging answer that is, you know, leads to a conversation and so on. So the way that it's been trained is definitely makes it seem both very human-like, but also kind of so wanting to please that it'll just make stuff up that it maybe, I shouldn't even use the word, it's so hard to talk about these things without using words, like it thinks you want to hear it, right? But yeah, that's the outcome. But you know, there's such an interesting thing. You talk about safety there for babies. Safety, emotion, love. Yeah. It's so key for their learning. And in fact, there's really good evidence from
Starting point is 00:54:56 people like Alison Gopnik, for example, who's an amazing neuroscientist and child psychologist, showing that kids really need that kind of safety in order to be able to freely explore the world and properly learn in an open kind of a way. And even the amount of play that they do. When we think about play, like what's the point of it? Play is an exploration of the world under safe conditions. What you see in kids who aren't safe, who've been abused or neglected or so on,
Starting point is 00:55:28 is that they just don't play as much and they mature really much faster. So that broad window we were talking about earlier where kids have really, really plastic brains, that manifests in this playfulness. But that itself is plastic. That window can close earlier in some children who don't feel that kind of safety to actually explore and be driven by their curiosity. And that curiosity drive is something that my colleagues are actually trying to build into the AI systems
Starting point is 00:56:07 so that they will have this kind of self-driven learning. As I said, not a passive thing, but really actively driven by themselves. And what you're saying there about children and play, that's exactly the process. So my job is I'm a writer, I'm an artist, a creative person. OK. And being an artist, you're just playing as an adult. That's all creativity is. You know, you can make it look as fancy as you fucking want, but to really make art. And when I say really make art for me to truly connect with my internal
Starting point is 00:56:47 creative voice that the one that that's uniquely me I have to be at play yes when I sit down to write the blank page is fucking terrifying and the reason the blank page is terrifying is because the fear of failure comes in and fear of failure is my identity, the insecure parts of myself that want to be seen as a good writer, the parts of myself that want to be celebrated or seen as as good in the eyes of other people, all of these things are at stake when failure comes in. So what I have to do is.
Starting point is 00:57:22 Take failure out of it and engage in playfulness. Yeah. And I can only engage in play when I feel grounded and safe and my self-esteem is not threatened. Yeah, exactly. Yeah. No, I think you're exactly right. And that last bit, you know, that you haven't, yeah, to be able to approach a new project
Starting point is 00:57:43 in this open way where you don't feel like there's so much riding on it that people's opinion of you or your own opinion of yourself is at stake. That's I think the thing that gives you the freedom to have that playfulness and that sort of expansiveness. And you know what the interesting thing is that you're talking about that as an artist and a writer. And I've experienced that as a writer myself, not in the same way that you do, but also just as a scientist. Because scientists are also at play. They have to let their intellects roam.
Starting point is 00:58:15 Academia is hostile. Academia can be a hostile place where your word is on the line. Yeah. Well, absolutely. And also there's this intense pressure to publish, to do things that have some sort of maybe in some fields that have like a commercial impact or something like that. And people are constantly thinking about what their peers and colleagues think of them and so on. And when you get into that, it sort of stultifies that creative impulse.
Starting point is 00:58:46 I bet you silliness is an important part of your job. There is a point in creativity where anything can happen. And as soon as you say, no, that's ridiculous, you've shut it down. You have to explore all possibilities. Absolutely. Science is very similar to that. Yeah. No, I mean, having an open mind and being able to entertain lots of ideas is absolutely key. And I think I forget who it was, maybe some famous scientist anyway said that in order to have a good idea, you have to have lots of ideas, which means you just have to be willing to have bad ideas and let them out and then have a look at them and either just think about them and say, oh no, I can see that's a bad idea already.
Starting point is 00:59:25 Or as a scientist say, well, okay, maybe that might be true. And then do an experiment to test it and then say, nope, you know, the data says no. And that's great. Then you've learned something. But that creativity of thought is so interesting. It gets back to, you know, what we were talking about earlier, these habits of thought that we have where sometimes when we were in some situation that's fairly familiar, we might choose a goal but then over time realize that the actions we're choosing are not actually letting us satisfy that.
Starting point is 00:59:58 And at that point, we might think, you know what, I have to try something else. And you might run through a few kind of obvious options, but really at some point you might think none of this is working. I just have to go back to the drawing board. I have to think outside the box. And there's actually systems in your brain that are specifically designed to kind of shake up the neural activity patterns in the parts of your brain that suggest ideas and then kind of widen the search space a little bit. Let you think of things that you wouldn't have thought of otherwise, really this act of creativity.
Starting point is 01:00:32 And then, but it's not just sort of arbitrary because there's a second stage where then you assess the ideas that come up. So you can let the, a little bit of randomness run free at the idea suggestion stage and you can still have some control over what you actually do by sort of assessing them afterwards. What you've described there, even a phrase you used there, you said outside the box.
Starting point is 01:00:58 And the process that you're describing there of, you know, as a scientist letting in all ideas, the person who coined the phrase outside the box, he was a fellow by the name of Edward describing there of, you know, as a scientist letting in all ideas. The, the person who coined the phrase outside the box, he was a fellow by the name of Edward de Bono and Edward de Bono. He also coined the phrase lateral thinking. Right. And Edward de Bono, he kind of normalized everything you're asking for right there. Edward de Bono in, he was hired by, he existed in the 1670s and he was hired by industry to come into their teams of scientists and to get them out of, when they were stuck on a scientific solution,
Starting point is 01:01:36 Edward de Bono would come in and he was the person who would say, we need mad ideas. No matter how ridiculous, we got to do mad ideas. This is called outside the box thinking. This is called lateral thinking. And the big thing that the Bono did was I think it was Ford. I think it was, I think it was Ford cars. The suspension on their cars was shit, right? And Japanese suspension was way better. And Ford were going, okay, we need the best suspension in the world.
Starting point is 01:02:04 They're teams of engineers. They were throwing money at them. They couldn't figure it out. How do we get better suspension? So as a last resort, they bring in Edward de Bono, who's this professional thinker. And Ono walks into the team of engineers and he said to him, here's your brief. I want to sit in the back of this car and I want to hold a cup of coffee and this coffee can't spill but the car has to have square wheels. The engineers said fuck off why you bringing this fella in he doesn't even design cars square wheels. So the company said we're paying him a lot of money make the car with scare square wheels so did. They made the car with the square wheels. The Bono sat into the back and his coffee didn't spill.
Starting point is 01:02:50 And then he just said to him, no, put normal wheels on it. And there's your suspension sorted. Nice. And they went, my God, you know, so the mad bastard came in with his square wheels. He also New York hired him in the 1970s because they needed more phone booths, but they didn't have the money to buy more phone booths. So there was huge queues for telephones on the side of the street. And this was causing the queues were so large that it was causing people to fight. So they were going, right, how do we solve this problem when we don't have
Starting point is 01:03:18 the money to build new telephone boxes? So they brought in the Bono and he just said, make the handset heavier. So he made the handset heavier. People spent less time. Right. Also the reason that I know we're talking about phone boxes and it's years old, but when we were looking at TV as kids and you'd see in America, the sign of the phone box, the phone symbol was punched into the metal using holes.
Starting point is 01:03:42 Yeah. That was the Bono's way of he came up with that idea because graffiti was an issue. So if there's holes in the metal, holes. That was the bonus way of... He came up with that idea because graffiti was an issue. So if there's holes in the metal, you can't do graffiti. So he came up with lateral thinking there. There's no such thing. There's a certain point in any, whether it be science, art, whatever, where you have to let in all ideas. AC Yeah, absolutely. CB As soon as you say, this is bad or this is good, that's wrong. You need to play. This must be playful. Yeah. And I think that's what humans really excel at is that we do have
Starting point is 01:04:14 playful intellects. And unfortunately, in some professions maybe that gets beaten out of us, maybe in our... I don't think our education system, frankly, does a good job of fostering that. I think quite the opposite. It's sort of cookie cutter, treating everyone the same and telling them, here's a bunch of facts, here's a bunch of other facts. Like the way science is taught, for example, it's not really well taught as a creative endeavor. And I think most people, you know, when you talk about creativity, science wouldn't be one of the main things that springs to mind. Right. No, let's take a short little ocarina pause there from the chat with the
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Starting point is 01:09:54 I'm contractually obligated to read out gigs lads. Alright, we'll get back to talking to the wonderful Kevin Mitchell about neuroscience now. It's science week. Go to sfie.ie, check out some science stuff. Facts, like the way science is taught, for example, it's not really well taught as a creative endeavor. And I think most people, you know,
Starting point is 01:10:15 when you talk about creativity, science wouldn't be one of the main things that springs to mind, right? No, and it's something that's been said to me so much by scientists. I'd love to have been a scientist. And I have the type of creative brain, the mad lateral brain that would work within science. But science was... I was denied access because I couldn't do the rote learning thing.
Starting point is 01:10:39 I couldn't do the sit down in school and behave yourself thing. So science was never an option, but Jesus, I'd love to have gotten into it. You know? Yeah. Yeah. No, I mean, it's a great sort of combination of this creative thinking. But then, I mean, there's also the step where you really have to test things, um, you know, rigorously and so on. So there's a there's this logical, um, formalized to kind of side to it as well. It's not just, it's not just a free flow sort of thing where every idea
Starting point is 01:11:07 is equally good as it turns out. You have to test them against reality. And that's when you're in the sweet spot is when you're having some good ideas and one of the ideas is about how to test those ideas. It's not a million miles off writing a book, to be honest. Like, like when I'm writing stories, there's the mad fun creative part. Yeah. And finally, ah, that's the idea. Yeah. And then there comes a stage where it's about refining and making this writing
Starting point is 01:11:41 solid and the pros solid. I think it was Hemingway said, write with fire in your veins and edit with ice in your veins. That sounds a bit like how you're describing science. There's the fun bit and then there's the, no, this needs to be test and evidence-based now. CB I think you're absolutely right. And that craft of writing, and I mean, this is something that I tell my students because we get them to do writing exercise, writing reviews on scientific literature, for example, and just convincing them of the importance of structure and being able to intentionally think about what you're writing, not just sitting down letting anything come out, but asking, well, what's this here for? What's that bit doing? Is this helping my argument and reshaping it and so on? So even in scientific
Starting point is 01:12:31 writing where you don't have as much room to play with the actual words themselves, there's still creativity in shaping an argument, but then craft in actually pulling it together into a solid piece of prose. I want to go back to automation and the brain again, okay? Yeah. Something like brushing my teeth and having a shower, that for me is automated and that's quite helpful. It's nice to get up in the morning and I'm not really having a good think about how to wash myself or how to brush my teeth. So I like that automation, but then there's other automations such as a loop of negative thinking. Right.
Starting point is 01:13:14 Yeah. Um, when I'm anxious, I tend to be worried about what might happen in the future. When I'm feeling blue and depressed, I'm regretting things that have happened in the past. future. When I'm feeling blue and depressed, I'm regretting things that have happened in the past. When a good old dose of that for about a month, now it's automatic thinking. Now my shower is completely automated. I'm washing myself and I don't even remember the shower that I had because all I did was worry about what might happen in two months time. You know what I mean? And.
Starting point is 01:13:47 I notice when that happens, I that for me is I don't really believe in heaven or hell, but that for me is hell on earth, hell on earth for me is when I am living in a world of negative automatic thoughts and not spending any time in the present moment when I can't remember what happened last week, because so much of it was spent with anxious thinking. So what I do when that happens is I actively try mindfulness. Right. I will decide, okay, this morning I'm having a shower.
Starting point is 01:14:20 I'm actually going to go into this shower and I'm going to notice the feeling of the suds on my skin. I'm going to notice and recognize the smell of the shower gel that I'm actually going to go into this shower and I'm going to notice the feeling of the suds on my skin. I'm going to notice and recognize the smell of the shower gel that I'm using. I'm going to notice the temperature. I'm going to bring all this to my direct attention as I do it. And I'll have a mindful day where everything I do in my day is not automated. I'm bringing attention to all my senses. And that's mindfulness. And I find that to be incredibly useful and incredibly calming.
Starting point is 01:14:48 And it stops me going into a really bad spiral of mental health issues. What is neuroscience saying about mindfulness, that process there where I'm stopping automation? Yeah, I mean, it's tricky. So first of all, I'm not an expert in that area, but I don't know that neuroscience has really, you know, identified what's going on in your brain. For example, there is some
Starting point is 01:15:17 neuroscience of meditation, which is different from what you've just described, but it's really, really, many miles off. Yeah, yeah, you're right. And so it's really deep meditation. And what you can see in really expert meditators is that their brain does go into a certain state that is kind of characterized by people who are not meditators, the state when they're sort of in a mind wandering. They're not thinking about anything in particular. Network mode, is that what it's called? The default mode, exactly.
Starting point is 01:15:48 Yeah. I've heard about this before, Kev. Yeah. So there's, well, it's funny. So if you put people in one of these magnetic resonance image scanners, right, then you can track which parts of their brain are active. And people will have heard, you know, these sort of people saying, oh, you're in the scanner and you can see this part of your brain light up or that part of your brain light active. And people will have heard these sort of people saying, oh, you're in the scanner, and you can see this part of your brain light up or that part of your brain light up.
Starting point is 01:16:08 And so for example, if I'm showing you images, then the visual parts of your brain will be active. If I'm asking you to think about making movements or so on, then the motor cortex will be active and so on. And that's how we figure out, here's this part is involved in language, and this part is involved in movement, and this part is involved in movement, and this part is involved in decision making and so on. It turns out that in experiments like that, people found that when they weren't asking the person to do anything, and when they were just lying there quietly waiting for the next thing, there was a kind of a distinct signature in the brain, a pattern of activity in the brain that was quite similar across different people.
Starting point is 01:16:47 It involved a bunch of different areas that are all kind of linked in a network that became the default mode network, default, because it's just what happens when you're not doing anything else. And that's kind of associated with this mind wandering sort of state. And it's funny you talk about having a shower because you get good ideas in the shower. I absolutely do. Yes. What the fuck is that?
Starting point is 01:17:09 Yeah. I don't, but it's because it's because I'm not thinking about anything else. Somehow. I don't know. I don't know why. Maybe it's the, the, the repetitive nature of the task. You're not allowed to use your phone. Yeah.
Starting point is 01:17:20 I don't, I don't understand exactly what it is, but I do get good ideas in the shower. And then, and then what I have to do is try and hold on to them long enough. Yeah. Don't forget them. When I get very common, a lot of people get good ideas in the shower. A lot of people like when we were kids, like I remember daydreaming a lot more. Yeah. And I love daydreaming. You know, it's wonderful. But as you get older, there's less opportunity to daydream.
Starting point is 01:17:44 And phones in particular have destroyed. Like, yeah, there's less opportunity to daydream. And phones in particular have destroyed. There's no point in daydreaming anymore. Daydreaming comes from boredom. But you can't daydream with a phone. But a lot of people do experience daydreaming and getting good ideas in the shower specifically. Yeah. And I think what's happening is because you're not actively thinking about something, you're not usually actively thinking about some problem unless maybe you are in a state where you're worried about something, but maybe just generally you're not, then the patterns of neural activity are a bit freer. They're a bit less hemmed in by the sort of attention to one particular thing,
Starting point is 01:18:27 and they're allowed to roam a little bit. And that's where, again, you can get some creativity from loosening those habits, shaking yourselves out of those ruts. So regarding the default mode network, right, what I want to try and do is detach it from potential junk science, okay? So I would have heard that. So I know the feeling of the default mode network. We all do. If you've daydreamed, it's most people will describe it as quite pleasant and nice and relaxing, and it's lovely when you get the opportunity.
Starting point is 01:18:59 I heard that, you know, it's very beneficial for our brains, that our brain heals during default mode network. Again, I don't know whether this is junk science or not, but as a neuroscientist, is any of that ringing true? Like, is there a benefit to it? I don't know what healing would mean in that circumstance, right? So the problem, you know, as you put your finger on it, there's a lot of, it's not necessarily junk science, but there's a lot of ways of talking about neuroscience findings that use these colloquial words. And it's hard to know, they're just vague, right?
Starting point is 01:19:38 They're just really, what does the healing mean? What's being healed? Was there an injury? What was going on? And, you know, People talk about this with psychedelics. There's a lot of interest in psychedelics these days where you'll hear these phrases like, oh, there's more complexity or there's greater plasticity or these various sort of terms that are really vague. And sometimes they have a very particular technical meaning,
Starting point is 01:20:06 but then they also have a colloquial meaning that isn't the same thing and it gets very confusing. So yeah, as far as the default mode network being good for you, I don't see any reason to think that that's a good way to think about it. But what about, okay, let's just say sleep now. Let's as a neuroscientist, sleep is good for you. Sleep is absolutely good for you. So sleep is amazing because one of the things that happens during sleep is after you've had your long day,
Starting point is 01:20:37 right? You've been going around in the world experiencing things. And we talked earlier about how that changes connections in your brain, like literally makes some connections stronger than they were before. Now, you can imagine if you just did that every day, right? And there is a little bit of a tiny little bit of growth of neurons, actual physical stuff that grows in these connections between neurons when you learn things. If you just did that all the time, then your brain would get too big for your skull, right? So there has to be a process of normalization. You have to sort of downgrade everything. Pruning. You're talking about pruning? Yeah. Well, this happens during
Starting point is 01:21:16 sleep, where it's not pruning particular things. It's just kind of you've allowed a bunch of neurons to get strengthened and those are carrying some particular information. And then at night, everybody just gets shut down a little bit. All of those synapses just get weakened just a tiny bit. But it leaves the difference in strength intact. It's just that the absolute level is renormalized. So that again, now you're in a stage, you can learn some new things. Because the other thing, if that didn't happen, you'd run out of space to learn new things, right? You just would have maxed out the capacity of your brain. So sleep is absolutely crucial for that kind of process. kind of process. Yeah.
Starting point is 01:22:01 Um, and then another thing around quality of sleep and again, potentially just the spelling a few myths, right? So when I'm highly stressed and anxious, a good example would be the period of lockdown, right? I don't think lockdown was nice for anybody. Um, I was very anxious all the time for about a year. Yeah. And my sleep was awful.
Starting point is 01:22:29 It didn't matter that I was getting six hours. I was not rested. Now I know that when I'm really, really stressed for a long time, my body is releasing chemicals like cortisol. And like, am I talking out of my ass? It is, it is true. I'm not the expert on that either. But the, I mean, the terrible thing about that is that that's a vicious circle, right? Because if you're not getting good sleep,
Starting point is 01:22:58 then you're getting more stressed, you're less able to deal with the stress and so on. And you know, anyone who's been through stressful situations will know this, but actually people with small kids really know this because when their sleep is being disrupted, it's just much, much harder to be emotionally balanced and to deal with little things, you get more and more stressed and so on. And actually, sleep disturbances are a major symptom and contributing factor to a lot of really serious mental illness, real depression and onset of mania and bipolar disorder, onset of psychosis and so on. So sleep health is one of the major, major, um, you know, contributors to mental health. And again, um, I reckon my smartphone that I got in 2011 has not helped me with my sleep at all.
Starting point is 01:23:57 I really, really, I heart back to the days. I remember it's 2007. I used to go to bed and beside my bed there was a pile of books. I didn't look at my phone because why the fuck would I look at an Nokia 3210? And then all of a sudden Wikipedia is on my phone and I'm putting that blue light into my face. I know if I wake up in the middle of the night now, if I even look at my phone to see the time, it wakes me up. I need to have a clock. Is there any other studies being done regarding quality of sleep, brain health,
Starting point is 01:24:31 and everybody having a smartphone, a torch inches away from their face in the middle? Yeah, yes, there are. Now, I don't know what the latest is, but basically what you just described, I think, is pretty much the conclusion. So there's two problems with having your phone next to you, right? One of them, it's just drawing your attention and it's drawing your interest. And that just is likely to induce you to come out of sleep and be more wakeful, right? But the other is the actual light, right? The light itself is likely to disrupt your sleep because we have these
Starting point is 01:25:08 natural circadian rhythms. So our sleep-wake cycle is calibrated to the 24-hour day period. It takes cues from the environment. So sunlight is one of those cues that tells your brain, oh yeah, here's where your circadian rhythm should be. And that's why when we get jet lag, when we fly to a different time zone, our brain, it takes a few days for it to catch up because it has to recalibrate with those light cues. So if you're giving light cues to your brain in the middle of the night, then yeah, that's terrible for your circadian rhythms. It's just going to mess up your sleep because your brain is going to be saying, this is not sleepy time. This is waking up time.
Starting point is 01:25:56 So a solution that I found is I just put my phone somewhere that would be really inconvenient. Yeah. And that's the best thing I can do. And that's my, that's my policy as well. I don't even bring it into the bedroom. No. And books, reading books under a nice little orange light, that's grand. That will send me to sleep and I get better quality sleep. And I love doing that.
Starting point is 01:26:21 Another thing I'd like to speak to you about. So I'm diagnosed autistic, right? Yeah. And. You know, sometimes I'm sceptical about it because. You know, if I was diagnosed 10 years ago, they'd have said, no, you're not autistic. That does not meet the diagnosis criteria. That's right. I am.
Starting point is 01:26:40 So a psychologist. Basically asked me a bunch of questions over the course of a couple of weeks and then ticked boxes on the diagnostics and statistics manual and said, you are autistic. You are neurodivergent. Your brain is different to other people's brains. And he also said, but in 10 years time, they might change it again and then you're not autistic. You know, he said that to me, said it straight up. And he also said to me, you know, being gay used to be in this manual in the 70s. Yes. You know what I mean?
Starting point is 01:27:14 So what's your take on that? Like, OK, I'm diagnosed autistic based on my behavior, but no one looked at my brain. No one did a blood test. Yeah. No one divergent. What does that even mean? Yeah. I mean, it's so, you know, you put your finger on it because in fact, there is no brain scan that you can do.
Starting point is 01:27:34 There is no blood test or genetic test or anything else that's going to say that it's going to give you a definitive diagnosis of autism in the way that you could get a definitive diagnosis of autism in the way that you could get a definitive diagnosis of like celiac disease or something like that or cystic fibrosis. Whereas autism is a label that we use. It's a category that we've made that is a tool that we use to identify sets of people who seem to have something in common. That something in common is certain ways of behaving, certain decreased sociability, for example, problems with social
Starting point is 01:28:14 interactions and narrow interests and maybe developmental delay and things like that. So there are a few criteria that psychiatrists have defined, I should say, that qualify someone for this diagnosis. But the diagnosis is just a convention in that sense, and the convention changes. That's why about 10 years ago or more the number of cases of autism started to skyrocket. It wasn't because of anything different in the world. It's just that the diagnostic boundaries expanded hugely. And so I would have just been called a weird bastard.
Starting point is 01:28:54 I'd have been, I'm just an eccentric artist. I grew up admiring all these eccentric artists. All my heroes were eccentric artists, but now these people would be diagnosed as autistic. Yeah. And so the question is not whether it's right or wrong. There's no answer to that. The question is just whether it's useful because it's just a pragmatic tool. So then is it useful, for example, to have one label, autistic, for people like yourself who are perfectly well functioning and someone who will never speak in their life and who will need daily care, full-time care for the
Starting point is 01:29:34 rest of their lives. That's just a huge range to try to encompass with the same word. And I feel like an asshole sometimes, the fact I'm like, I'm very ethical around it. And, you know, I get that the media are always asking me to speak as an autistic person. And I have to be very clear that I'm fucking flying it lads, but I cannot speak for a person who is nonverbal, who is really, really struggling. I cannot speak for that person. And it'd be so wrong for me to attempt to do so. It causes a lot of confusion within the media about how to present, you know, a condition like autism because it has this huge range. And in some ways there's some people saying, oh, we should just, if this is great, we're recognizing these neurodivergence.
Starting point is 01:30:21 Not everybody has the same cognitive style. Not everybody has the same way of interacting and so on. And it's good to recognize those and it's good to adapt our systems to make space for those kinds of people and not try to have everything in our system just defined for the neurotypical people. And we need supports in schools, we need broader ways of allowing people to express who they are. And all of that, I think, is great. But at the same time, there's a risk where it's almost like you're celebrating this thing. And then there's other people, parents of autistic children who are so severely affected, who are saying, we need a cure for this. We need this as a serious medical condition, it's a really profound disability. And so,
Starting point is 01:31:15 I think within the discussions, then, there's a lot of talking at cross purposes, because those are just two very, very different things. They don't have to be contradictory. They're just talking about different ends of the spectrum. And how do you feel about like as a neuroscientist words like neurotypical, neurodivergent? Yeah, I mean, I have no problem. I think neurodivergence is a useful term. Basically, I think we're all in a sense, kind of neurodivergent. That's something that I've been writing about in the past. There's no such thing as this one brain, this one brain. Well, exactly. There's no sort of canonical human brain or way of being. There is such a thing as human nature on average, but no one has that average human nature.
Starting point is 01:32:05 We all have our idiosyncrasies and there's so much variation that actually goes below the radar. I mean, we're talking about something like autism where there's a lot of awareness of it, but there's lots of other sort of strange differences between people like in perception, for example, there's conditions like synesthesia that we've studied where people may see colors when they hear words, or they may taste music or something like that. And that's actually much more common. Maybe two to three percent of the population may have that and not even be aware that they're experiencing the world in a way that's different from other people.
Starting point is 01:32:47 Why would they bring it up? Well, exactly. It's just totally subjective. When is there isn't a lemon to you? When does it taste like a lemon? Exactly. And yeah, it turns out that's really common. And then there's a bunch of other things like people who are face blind.
Starting point is 01:33:02 They can't connect people's faces to their names or anything about them. That's much more common than we thought. There's one that we only sort of realized very recently, which I find fascinating, which is called aphantasia, where some people can make a really strong image of something in their mind's eye, but other people can't do that at all. Like if you ask them to picture the Golden Gate Bridge or picture Brad Pitt's face or something like that, it would just be a blank. They would just have nothing in their mind's eye. And other people would be like, Oh yeah, I can see I'm looking at Brad Pitt's face. Let me turn it to the left. Oh yeah, he's got he's got a sideburns in this view or whatever. See, that's mad for me, like, because like, I'm very visual. I can picture it exactly in as many different ways as I possibly can.
Starting point is 01:33:50 And I have great difficulty imagining the frame of reference of a person who can't. Or another thing that I've seen in the past year and tick tock in particular, and I'd love to get your opinion on this. People, some people say I have an internal monologue at all times. And other people say I have no internal monologue. There was no voice inside my head. Now I'm Mr. Internal monologue. I love like that's what I do all the time. I've like five or six conversations with myself going at once. I adore it. But I cannot imagine the frame of reference of a person who does not have an internal monologue. It's almost like I don't believe them.
Starting point is 01:34:25 Yeah, I know. Isn't that so interesting? And I'm the same because I have also very vivid mental imagery, but my internal monologue is going, there's always like a song going in the background. And you're chatting with yourself and you're figuring out problems with yourself. Absolutely. Yeah, yeah. No, I'm arguing with myself and rehearsing all sorts of things and things I should have said and so on. It's noisy in there. Yeah. And I don't know what it's like to for it to be quiet in there.
Starting point is 01:34:51 I think I would find it terrifying, actually. Absolutely. I can absolutely. But how like, have we spoken to these people like, I mean, that to me, I feel like we should know more about this. I feel like I know more more about this. I feel like know more about the people who say I do not have an internal monologue. Like, well, this is the amazing thing is that that even, you know, we're after thousands and thousands of years of talking to each other. It's only now apparently that we're coming to recognize these
Starting point is 01:35:20 really, really fundamental differences in our inner mental experiences between people. And so neuroscientists and psychologists and cognitive scientists are starting to study people with these aphantasia or no inner monologue. And they're finding some brain differences that seem to bear it out, that these differences have some neural basis to them. And people are trying to do that for synesthesia as well and other kinds of conditions. So for me, it's just this illustration that there's so much deep, deep fundamental diversity between people in the ways that our minds work and the kinds of subjective experiences that we have and that That is just a salutary kind of lesson, you know just creates problems and some of it doesn't
Starting point is 01:36:14 Well, yeah what creates the problem is thinking that everybody else is having an experience like you're having and everybody else is Going to have the same kind of emotional reaction or cognitive reaction to it that you have, right? Not being aware that other people are really different from you and feel things differently and experience them differently, that to me causes lots of problems. And that's why I'm really happy to see this kind of the neurodivergence, the emphasis on that because it's something that we haven't thought about before. Now, what you do with that knowledge and what you do with that in society, there's a whole other realm of questions there. But to me, it's just super, super interesting
Starting point is 01:37:01 as a scientist and as a person to think about those kinds of differences. And as you're saying, like there's there's certain autistic people and if they go somewhere like a supermarket and it's very bright or the lights are a particular color, they're experiencing that as deeply stressful and painful. I'm not that way. I'm grand with it. But the person who diagnosed me when I was speaking at the start of this, this chat, and I was speaking about the difficulty of being in crowds, you know,
Starting point is 01:37:31 that was very painful for me. That was deeply overstimulating, we'll say. And then I trained myself to be okay with it. If you know what I mean. And I'm still not mad about it. I still spend, I spend 90% of my time by myself. Um, social interaction is something I can do and I enjoy, but it does drain me. I do a good old dose of social interaction. I need three or four days off, chill out and charge the battery.
Starting point is 01:37:57 And that behavior there, that's what got my boxes ticked for the office. The need to charge that social battery. They said, well, that's, that's neurodivergent. You're coping with society and there's your evidence that you're coping. Yeah. And that's, you know, that's then a positive thing to recognize that. Right. And, you know, especially if you think in our educational system, it would have been great in school because I just got back from being a little shit, you know, would have been really, really helpful in school.
Starting point is 01:38:25 Right. Exactly. If they had recognized that, and I think we're getting just so much better at it and there's more supports and so on, then that just makes it a much more positive, welcoming experience for people who aren't just the sort of straightforwardly getting, getting on with things, fitting in perfectly well, socializing great and, you know, just handling everything. I've been able to simply sit down in a classroom for nine hours, you know, that's not a skill that I have. And I used to, I used to, I used to Mitch school. I used to just bunk off school and get severely punished.
Starting point is 01:39:01 But now I look back and I go, no, I was meeting my needs. I was meeting needs. I was getting overstimulated in the classroom. Another thing regarding the internet, I'm thinking about that, that famous viral dress from 2015, that the famous dress where some people saw it as blue and other people saw it as white and everyone's heads exploded.
Starting point is 01:39:20 Like I saw it as, I think I saw it as white and gold. Yeah, good. You're one of the right ones. Yeah, you and me, we were right. But when other people were saying blue, I felt like it was a joke, partially directed at me. I'm like, come on, let's it's white. Yeah, I'm sure your field went insane when they did.
Starting point is 01:39:40 Yeah, absolutely. No, people were trying to study that. I mean, there is a there is. There is a psychological, perceptual explanation for it to a certain extent anyway. When we see coloured objects in the world, we're always correcting for the illumination. So if we're in a place that has a bright blue light versus kind of yellow light, our perception is not just this passive process where photons of a certain wavelength are driving parts of our brain to say, oh, that's yellow. It's more like an inference of what's out in the world and how should I think about it? And because it's that inference, we use all kinds of information, including the background illumination. So apparently what was going on in that thing
Starting point is 01:40:30 was that for some of us, we were seeing the background illumination as more yellowy or more bluey. And then that was leading us to make an inference about the color of the dress itself, right? Because it would be a different colour as an object if the background light were one way or another. Now, why some people saw the background light one way or another and why it was so stable for them and such an individual difference, we don't really know, but it's absolutely fascinating example.
Starting point is 01:41:02 And what you're describing there about colour, that's why I adore the paintings of the Impressionists, Monet in particular. Like the Impressionist movement would have started around 1860, it was a response to photography. This new thing gets invented called photography and artists shit their pants and go, oh my God, there's a machine that can capture images.
Starting point is 01:41:24 And then the Impressionists were like, no, can't do what we're doing. So the impressionist, Mané in particular, especially if you look at his Haystack series, where it's the painting of a Haystack at different times of the day, where he's not really trying to capture the Haystack as it is, but he's trying to capture the experience of seeing color. Yes. The Haystack in the daytime, it's actually purple. He paints it as purple.
Starting point is 01:41:47 It's about how we're perceiving color. Does your work ever make you think about the nature of reality? It does, all the time, yeah. How do we know what's there? How do we know what's solid? I mean, my brain is processing light that's hitting my eye and all these other senses. And then it's the brain is making it make sense to me. And that's all I know. But what's reality?
Starting point is 01:42:15 Yeah. Well, so that's what I was referring to when I was saying that perception is this active process of making sense of the world. So when photons hit your retina, you don't perceive them. You're not perceiving individual packets of light hitting your eyeball. What you're perceiving is the objects out in the world that the light was bouncing off of. But in order to do that, your brain has to do all this inference. It has to do all this work to figure out what could be out in the world. And that requires calibration over years and years as a baby, you're crawling around,
Starting point is 01:42:49 you're making sense of your visual impressions by taking objects in your hand and putting them in your mouth and you're sort of cross calibrating with your other senses. So yeah, that process of perception is a process of inferring what's out in the world and also what you know, what you should do about it. It's really used to inform your actions. Now.
Starting point is 01:43:09 So I've seen a ball a bunch of times and the fact that I know what a ball looks like. I've felt a ball. I've lived with a ball my whole life. That informs my perception of a ball. Absolutely. I have heard of people who've been blind their entire lives and all of a sudden they gain their sight and they've spent their life picking up a mug. Now that they can see the mug, they're like, sorry, I can't do this. I know what it feels like, but I can't really see this mug. Yeah, well, I mean, there's some really, really interesting experiments on people who were sort of congenitally blind from an early age and then say they had cataracts or something like that, and then they had them removed. There can be long lasting deficits in visual perception, especially things like depth perception. If they didn't have that early experience, we were talking earlier about how the young
Starting point is 01:44:05 brain is so plastic and it's wiring up in response to the experience that it receives. And there's a sort of a critical period when that has to happen in order for the whole system to be set appropriately to the kinds of things that are out in the world. And if you miss that period, then yeah, there can be longer lasting kind of effects. But I wanted to just get back to the question of reality because there are some people who say, okay, well, perception is just a construct, right? And it's not a true representation of what's out in the world. It's just things in your brain. Your brain is just creating reality. And I mean, kind of it's creating a picture of reality. But if it wasn't an accurate picture, well, we wouldn't have it. I mean, all that machinery
Starting point is 01:44:53 is really energetically expensive to use and to make. And so those perceptual systems that we have exist because they allow us to adapt to things in the world. So if it wasn't giving us an accurate picture of what's out there, we wouldn't have them. So to me, it doesn't make sense just because our perception is this kind of active inference to say, oh, I don't know whether reality exists or not. How could I? Well, you're still alive. That's how you can know. I used to teach people to paint. And when I would be teaching people to paint, like still alive. That's how you can know. I used to teach people to paint. And when I would
Starting point is 01:45:26 be teaching people to paint like still life, the first thing that I would teach them is to remove language from what they're looking at. So if you're to paint an orange, or no, let's just take an apple. You're to paint an apple. You have to forget that apples are green. If you're painting a road, you have to forget the language that roads are black. One you have to remove what you've learned about these things so you can truly see. Because the fact is, a road under the right light could very well be purple. That's the color that you mix on the palette to do a good job at that road. It could be purple, yellow, blue, but as soon as your brain says, no, roads are black, you're fucked. You can't paint. Same with apples. And it's reminding me of, like you were saying there,
Starting point is 01:46:16 that perceiving things, there's a lot of automation. There's a lot of what we've known before, is interpolation that we're filling in gaps to an extent. Yeah, there's a lot of expectation. And I think you absolutely see that. You can see it in optical illusions, where something appears the wrong size because there's some contextual cue and your brain knows that something in that context must be bigger or smaller and so on. And even when you are aware of them, it's really hard to get rid of that kind of illusion. But the other thing, like when you're talking about painting and so on, yeah, you need to get out of your own way. You can't be actively thinking about what something should look like
Starting point is 01:47:03 because of what you know, you have to actually paint what you see or draw what you see. And actually a nice trick for that that I read about and learning to draw myself is to actually focus on the negative spaces. So don't draw the object because you have a preconceived notion of what a chair looks like or what someone's arm looks like or what a face should look like. Instead draw the spaces between the arm and the chair, for example. You have no preconception of what that should look like. And so you're free to just let the perception actually be more accurate so that now someone else looking at your picture will have the same
Starting point is 01:47:45 kind of response to it. And another thing around perception there too, I remember a wonderful story. So around the 1870s, whatever the French were doing in the area that is now Saudi Arabia, the French were working with tribes there and these tribes were Muslim people. And they lived in the desert and they worked with horses a lot. So these tribes, they knew horses. And then the French as a gift to these people, they presented these people with a brilliant painting of a horse. An amazing, like if you and I saw it, we'd be like, that is the best painting of a horse I've ever seen. These Muslim people within their culture,
Starting point is 01:48:30 you don't draw things that God made. So you'd never draw a horse. You Muslim art or art in Islam tends to be geometric shapes and you don't see a lot of representational art because it's kind of faux pas to draw anything that was created by God. So when the French presented these Islamic people in the desert with a brilliant painting of a horse, they couldn't see it. They couldn't they couldn't do the brain mathematics to see the horse, a 3D object represented on a 2D space because they'd never
Starting point is 01:49:05 seen that in their lives. And to them it was just a blob, a blur of brown. And the French were like, no, it's a fucking horse, like the one over there. And the lads were like, I've never seen this before. I don't know what a 3D to 2D image is. Thanks for the gift, but it just looks brown to me. It's like, I guess, the invention of perspective in painting, which took so long. Right? And yeah, and I think it was just people were saying,
Starting point is 01:49:32 no, I know roads are straight and they carry on with the lines parallel. So that's the way I'm going to draw them. I've looked into perspective. So if you look at the history of paintings, there's cave paintings going back 30,000, 40,000 years, right? But perspective in painting really only comes about, it's around the 1200s. The first to do it, there was a fellow called Paolo Uccello and another fellow called Giotto. And they basically painted paintings where
Starting point is 01:50:02 it's like the horses in the distance are smaller. Simple as that. And it had never really been done. And one theory about how perspective came about in painting was it was because of architecture. So people in the area of Italy, where Giotto and Paolo Iorcelli were coming from, they were in cities. And in these cities, the architecture and the planning of the roads meant that they could introduce visual perspective to the paintings. And then that leap, that leap in human consciousness occurred where we were able to represent a 3D space on a 2D plane, which is really, really complex. And we take it for granted now, but that was massive leap, massive, massive leap to introduce perspective to 2D space. Yeah.
Starting point is 01:50:46 And we'll leave it at that, Kev, because I think we'll end up talking about literally everything and anything for hours. We could do, yeah. And thank you so much. That was a wonderful, fantastic chat. Oh, yeah. It was my pleasure. Yeah, super interesting. Thanks. And so have a lovely day. Dog bless. Dr. Kevin Mitchell, Dr. Kevin Mitchell. Dr. Kevin Mitchell there
Starting point is 01:51:08 of Trinity College. Associate Professor at Trinity College. You're perpetual, Kevin. You're ten-foot Brenda. Thank you so much for that magnificent chat. Thank you to all of you for listening this week. Go to SFIE.ie
Starting point is 01:51:24 to get some Science Week information. It's Science Week right now. Ooh. Um. I'll catch you next week I don't know what with. A hot take of some description. Tomorrow morning I'm gonna wake up, bright and early, and begin my hot take research.
Starting point is 01:51:41 Check out my short film starring Robbie Sheehan. Did you read about Arsken Fogarty? This Thursday on RT2 at 10 past 10 or on the fucking RTE player right? Rub a swan. No don't rub a swan. Wink at a cormorant. Marvel at the decomposition of a snail's shell in November. Smell the slurry-like aroma from rotting leaves that you get in fucking November. Dog bless. Catch you next week. We get it. Life gets busy. Luckily with Palatine Tread, you can still get the challenging workouts you crave. Only have 10 minutes? Take a quick Palatine workout. Want to go all out? Chase down your goals with 20 to 45 minute tread
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