We ask readers of fiction when they're reading a book, they hear the voices of the characters in their head. >> A lie. But life uh finds a way. >> Like one in seven of the readers said that hearing the voice of the character in a book was as real and lifelike and vivid as if there had been an actual person in the room with them. We un uncovered some interesting phenomena about the sort of crossover between real and fictional world worlds. The best example of this is that somebody's reading Mrs. Doway by Virginia Wolf. They put the book down. They go out down into the street to get a coffee. They walk into Starbucks, but instead of seeing the inside of Starbucks as they themselves would would experience it, they're experiencing it as Mrs. Stanoway as the character in this book that they've been reading. >> Charles Fernie, who is a psychologist who has spent three decades studying the voice inside your head and discovering that almost everything you believe about it is likely wrong. He led hearing the voice, the world's largest scientific study of why people hear voices, revealing that the line between everyday thinking and hallucination is far thinner than anyone assumed. He's also the author of The Voices Within and Pieces of Light. His research has also shown that your inner speech isn't actually a monologue. It's a dialogue. It's a conversation. If you want to truly understand the contents of your own inner conscious experience, like your mental imagery, your own inner speech, or your emotions, then click the link in the description and take my 7-day inner experience challenge. It is completely free to do and you will get the most comprehensive breakdown of your actual conscious reality using only research proven methods. I am genuinely so excited about this. Just click the link in the description. I hope to see you inside the community. Can you hear other voices but it not give you any negative emotion? Like can you have all these other voices in your mind that you model and talk to but it not have any negative effect? Like it's only positive. >> We've done research on exactly that topic. So it used to be assumed that hearing voices was always a sign of pathology. But then beyond the realms of the psychiatric clinic, we know that a substantial minority of people hear voices quite regularly and are not troubled by them, find them neutral or actively positive. We see these huge individual differences between people and we see individual differences within our own minds. Does it matter if it's inner speech or unsymbleized thinking or some other form of abstract conceptual cognition? Are there actual implications for an individual who is innerly speaking 80% of the time versus 20% of the time? Do those differences actually show up daytoday for these people? >> I think there are those differences. Um, >> Charles, what do you think inner speech is for? I think it's for a bunch of things. If we think about what regular out loud speech does, it does all sorts of things. It performs all kinds of different functions. I mean, language is pretty amazing for the range of things you can do with it. So w with words you can propose marriage to somebody. You can divorce somebody. You can condemn someone to death. You can say yes to something. You can say no to something. You can you can use language to regulate other people in all sorts of interesting ways. You can use language to control people to to cajol people, coers people and more positive, you know, more positive effects as well. So language is like this crazy multi-purpose tool. this sort of Swiss Army knife of functions. And when you turn language back on yourself, I don't think you really lose any of that functionality. I think all the all the things you can do with words, you can do with words for yourself. Um, and I think we're just starting to understand how inner speech has so many different things it can do for us, both positive and negative. >> Do you want to give one or two of the say biggest examples that come to mind? Well, I'm using inner speech myself all the time for regulatory purposes. So, if I'm on my way upstairs and I have a a few things I need to do, I'll use words to rehearse the things I need to do upstairs so I don't have to make another trip. So, you know, just just earlier on, I had to pick up a book and get some running socks. And I wanted to make sure I did both of those things on that trip. So I was just saying to myself in my head, book running socks. So that's that's a really sort of simple everyday example for the kinds of things we do. I think it's also important to recognize that inner speech has a whole range of emotional and and motivational functions. So it's not just about planning our behavior and regulating what we are doing and thinking. It's kind of used for being nice to ourselves, being nasty to ourselves, geeing ourselves up, uh psying ourselves up for doing something, encouraging ourselves, but also for criticizing ourselves, and we use it to beat ourselves up when something goes wrong or we think we're being dumb or whatever. So, that's really not about regulating behavior or cognition. It's not about the kind of logical stuff. It's about the emotional stuff and the motivational stuff and language does all that kind of thing as well. You know, so many of the words you use during the day to other people are not about conveying information or making things happen. They're about helping someone to feel better or or encouraging somebody or making somebody stop and think or you know all those sorts of uh emotional and motivational factors as well. So I use inner speech I think in that sense as well to to keep myself going to tell myself off that kind of thing. >> Couldn't that all be thinking? You know thinking in sort of abstract concepts? Does it need to be language to have all those features that you mentioned? >> Yeah, I don't think it needs to be language and that's evident from the fact that some people don't use nearly so much in a speech. But it's like, you know, you're carrying most people are carrying this cool Swiss Army knife around with them that does all these things. Most people use it to that to that effect because it's handy. It's useful. It's not the only way of doing it. There are other there are all sorts of other ways of um doing this stuff. But inner speech turns out to be pretty useful for a lot of people. And that's I think that's to do with the power of language. language is just this extraordinary tool, this extraordinary cultural creation that we have that um we can turn back on ourselves and and benefit from in terms of uh all those different functions. How do you tease apart inner speech and thinking? Because I think those concepts are it can look very similar on first glance. on first analysis they can seem like they're the same thing almost. How do you differentiate them? >> I think we do that in cognitive science by abolishing the term thinking. Okay, so it's a it's a really useful term in everyday language. I use it a lot in everyday speech. It's very hard to to avoid. But when we start getting scientific, I think we can do much much better. Thinking is too general a word. It's too fluffy. It's too fuzzy. It means what does thinking mean? It means everything the conscious mind does. Okay. Wow. You know, that's going to take a while to unpick. The point is that we can be so so much more specific now about what the conscious mind does. So, we can talk about inner speech, right? And that doesn't mean that inner speech is all of thinking or what all of what we used to call thinking. If I get my way and we get rid of the word, we can talk about visual imagery. Some people will use visual imagery a lot for the kinds of things we've been talking about. We can talk about emotions. We can talk about memories. We can talk about um feelings in the body. We can talk about mind wandering. We can talk about all sorts of different stuff that the mind does. And people are working on all these different um topics and finding out cool cool things about them. But somehow we keep coming back to this term thinking. And what I want to do is get away from this question which has dogged us for thousands of years really which is that you know the question of do you need language for thinking I'd say let's just get over that. Let's stop talking about thinking and start asking do we need language for computation? Do we need language for solving chess puzzles? Do we need language for thinking visually? Do we need language for regulating our behavior? then you can start getting into some decent scientific questions. Um, and the answers to those questions will be different in each case. You know, my first ever research project was about a kind of study on inner speech in relation to chess problem solving and we we looked at some expert chess players and looked at how they solved chess puzzles and we found they didn't really use that aspect of their minds. They didn't really use funological processing. they were thinking vispatially, if you want to use the term thinking in that in that everyday um context. Um, so I'm perfectly happy with the idea that a lot of the cool stuff that we do has nothing to do with language, but I think it's useful for us to find out how much of the things that we do do involve language and and why and how uh and what differences there are between people in in how much that happens. So, you know, because we see these huge individual differences between people and we see individual differences within our own minds. You know, our my inner speech pretty sure changes from moment to moment, from day to day. I guess yours probably does as well. That's the interesting question and I think we can just move on from this question of thinking and thought. >> I really love that chess example as a as a strategy game nerd. Um that's a super interesting result that they don't they don't uh you know use language to think through that those processes as they're um you know simulating different different plays. The reason I ask about this difference between inner speech and thinking is I know you're you've collaborated with Dr. Russell Herbert. Um, we've had two great conversations now and I did a 10-week experience sampling with Russ. And one of the things I really struggled to do was if I had a beep and I wrote down, you know, I was thinking these things and then for people who aren't maybe clear about descriptive experience sampling, I carried it around this box that beeped me at random times and my job was to write down my experience in that moment. And then I would get on a conversation with Russ and he would kind of interrogate me. He doesn't like that word, but that's kind of how it feels. Um, and a lot of the time I would write down something like I was inner speaking to myself and he would ask me what words I was using. And then I was like, well, that's a good question. I mean, was I it felt like I was using words? Like a lot of the time maybe I was doing a value judgment or some sort of appraisal in my mind and I was like comparing two things and I was thinking like which of these is better you know often times it was in relation to a video or something I was doing some judgment and I would often write down that I was thinking through using language but then when he questioned me on it often times I wasn't able to tell him the words that I was thinking and then as the weeks went on and I got kind of better at this descriptive experience sampling um protocol. I realized that a lot of what I thought was previously in language, it probably wasn't. It was probably in some more abstract conceptual, he likes the the phrase unsymbleized thinking. And so I was kind of mistaking those two things. So I was curious, do you think that's a very common occurrence in your research? Do you think people very very often only apply language to the thought process after the fact? It's a after you're an analyzing whatever coitation was happening in your mind, you sort of apply the language to it, but in in a lot of cases that there might not have been language there to start. >> Yeah, that is such an interesting question. I think it's a question that descriptive experience sampling gives us something of a handle on. Um I've enjoyed a fantastic collaboration with Russ, which is continuing. But I think one of the things that we kind of agree to disagree on or are still I think still constructively exploring is whether some of the things that end up getting classified as unsymbleized thinking which is one of the five most frequent categories that come out of the sampling process as you know inner speaking being another one of them. Some of the things that get categorized as unsymplized thinking might actually be highly condensed in a speech and that because dees sets the bar quite high for inner speech or inner speaking that's how they end up getting categorized. So in order for something to count in dees as inner speaking Russ will say to you what okay what were the words and it's fine if you can only remember one or two words that's fine it will still categorize that as inner speaking but if you can't remember any it might actually not mean you you're pushed over into a different category which I think exists I think you know that category is is a thing but the the sort of the thing that we're trying to figure figure out is that if you follow the theory of inner speech that I do and that has the strongest I think empirical support that of Vigotssky who was writing about this stuff 100 years ago in in the early in the young Soviet Union if you follow his um account then a lot of our inner speech is what we call condensed in other words it's like a compressed note form telegraphic condensed version of what you might say out loud. So, to give you an example, if you picked up my notebook and tried to read it, you there's a lot of it you just wouldn't understand. >> Because I'm writing for myself, I don't need to spell things out fully. I'll use, you know, words, fragments of words, letters, abbreviations, squiggles, whatever. I I understand it mostly. Um, and I think a lot of our inner speech has that sort of quality relative to the kind of language we're doing now where I hope I hope I'm speaking in full, you know, reasonably fully formed grammatical sentences. And, you know, most people who understand the language would would understand what I'm saying. Inner speech isn't like that. So, a way of thinking about condensation is that everything that is languagey about the inner speech gets stripped away. So everything that is to do with tone and tambber and accent and pitch and all the sort of funological articuly stuff that language gets wrapped in when it's spoken that all just sort of drops away and you're left with what Vigotsky call thinking in pure meanings. Okay. So even Votsky couldn't avoid the term thinking. Um there's some complicated stuff there about the words in Russian being being quite specific and distinct from our word. But anyway, we won't go into that. The point is that some kind some forms of inner speech are like language without much of the language left because of the way that inner speech gets internalized and taken into the self and gradually compressed and condensed so that it seems to be unfolding much faster than exter external speech could do. So I submit sub submit to to Russ that some at least of what ends up being called unsyvilized thinking is actually just highly highly condensed inner speech. >> Right. The >> trouble is we've got no way to prove that. Uh it is very much dependent on what people understand by inner speech. Um it very much depends on what kind of what is out there in the culture about inner speech. I think if you know we fast forwarded 20 years and everybody was talking about condensed in a speech then it it might be a different kind of thing. I actually think it might be a puzzle that could be unpicked neuroscientifically and I think there's a lot of things about psychology that neuroscience in terms of brain scanning and so on doesn't tell us much about but I think this could be one and I'm excited about the fact that we researchers in the future might be able to take that on and it's really good that people are thinking about these different kinds of inner speech not saying it is all just one thing one kind of are sensitive to its different forms, its different functions, its variation within individuals and between individuals. >> Yeah. I guess the prediction that you might make there as a neuroscientist is if you put someone in some sort of brain scanning technology situation and then you got them to flick between you know inner speech and you know maybe you just let let them sit there idly and and you you wait till they do some thinking that you should be able to see some signature brain activity there. You should be able to see language centers firing for what is inner speech and you should be able to maybe not see language centers firing for what is I I know you don't like thinking but whatever other level what other processing coitation cognition whatever else there is unsyvilized thinking whatever else there is um is that what we see do you know if there's good evidence to show that inner speech like fires the the language centers like you might expect >> the short answer is Yes, the longer answer is yes, but what a surprise. So, let me unpack that a bit. So, the way you know neuroiming has been around for 30 odd years, hasn't it? Since with PET and then fMRI and the way all the studies of inner speech have been done is they put somebody in a scanner and they give them a sentence and they say think this sentence, you know, say this sentence to yourself in your head or some version of that. And that is interesting. And what it always shows is that broker's area, which is this area, the left inferior frontal um gyrus towards the front of the brain to to the left. Um it lights up, you know, it activates. It's it's that kind of silent internal speech to the self is associated with brokers area activation. Just as my brain would be lighting up there now as I'm speaking to you out loud, you see the same sort of pattern. You also see broker's area lighting up when we do a whole bunch of other things that involve complex sequencing of motor actions. So language is about a highly complex, exquisitly timesensitive sequence of complex motor actions. You know that's it's hard work doing what I'm doing right now. It seems completely natural, but in terms of cognitive and neurological demand, it's hard work. So, leave that aside. Brokers areas probably isn't that specific to language, not as specific to language as we'd like to think it is. Having said that, you know, if you had damage to that area, you would likely have end up with profound aphasia, difficulty in in producing spoken speech. So, we know it's involved. The interesting thing is to go back to that experimental paradigm where you you stick somebody in the scanner and you say think this thing they are not that that isn't really anything like the kind of speech I'm doing when I've gone upstairs and I I'm telling myself to you know I'm remembering I've got to pick up the book. So we we have distinguished and this is in the collaboration with Russ. We've distinguished between these two kinds of ways of assessing or yeah of assessing um inner speech. There's what we call elicited in a speech which is where you elicit it deliberately in an experimental context. So when you put somebody in a scanner and you ask them to to do this speaking to themselves in their head that's elicited in the speech. The other stuff which is the stuff that dees captures is the stuff that just happens anyway when we're doing inner speech just because for some reason in that moment our mind brain body system chucks that out you know wants to do that thing does that thing okay so it's it's speak inner speech that just happens spontaneously and what we were able to do with the study that we conducted in Berlin with Russ and our um German colleague colleagues um Simona in particular um we were able to compare those two kinds of assessing inner speech for the first time in the scanner. So part of our procedure was to ask people to say particular things to themselves whilst they're in the scanner and we got that signal of that what we call elicited inner speech. In another part of the procedure after people had been trained in dees and had got good at it and let's say they they acquired skill rather than they were trained in it. It's not really a training process but they had acquired skill at doing dees the kind of the thing that you did. Once they've done that, we then put them back in the scanner and we just leave them to it and we give them a a free sort of like a mind wandering resting state context where they're just lying there, you know, wondering why the hell they're in a brain scanner and thinking whatever thoughts come into their heads. And then we were probing them in the scanner and then taking them out of the scanner, interviewing them in exactly the way that you were interviewed, putting them back in the scanner for another 25 minutes. And that was how the procedure worked. So we only had a few participants. We we gathered a lot of a lot of data from those those participants. And we're able for the first time to compare those illicited utterances with those spontaneous utterances and to see whether the brain signals looked anything like each other. And we didn't feel that we had, you know, a big enough sample or, you know, to to to deliver the ultimate truth on what the neural underpinnings of spontaneous in a speech are. What we set out to do was just see whether they were the same, whether they looked anything like the same patterns. And as you'd expect from all the other studies that have been done on inner speech, if you tell people to do inner speech in the scanner, this lights up. Broker's area is activating. And we looked as as a region of comparison, we took an area further back in the brain in the left hemisphere um in in the temporal region which we know to be associated with with speech comprehension, speech processing. And so we figured if you're doing in a speech you're focusing on producing, you're not going to be doing so much comprehending. And just as you'd expect and just as other studies have shown that that more frontal area was activating uh and the the more posterior area was not was not activating. Then switch to looking at the spontaneous samples. So this is where people are doing in a speech in the scanner not because they've been told to but just because they're doing inner speech in that moment and we've captured it using dees. you get something very different. You get very little activation in Broca's area at the front. Get much more activation further back in the brain in that area that temporal area that we associate associate with speech comprehension. So it's as if or or speech receiving speech. So it's as if elicited inner speech is more of a directed speaky kind of thing and spontaneous inner speech is more of a kind of comprehending listeny kind of thing but actually that's going beyond the data. We can't conclude that we don't have enough controls other areas of regions of interest and so on. It's preliminary findings, but that are nevertheless really suggestive in just making a stop and think. That's that word again, stop and consider when we ask somebody to do something in the scanner on purpose deliberately. Is it actually anything like the kind of thing that happens that we're really interested in, which is what happens to people spontaneously in their heads? So I guess the question that comes to mind maybe for the listener is are we being pedantic over these labels? Does it matter if it's inner speech or unsyvilized thinking or some other form of abstract conceptual cognition? Are there actual implications for an individual who is innerly speaking 80% of the time versus 20% of the time? Do those differences actually show up daytoday for these people? >> I think there are those differences. Um we we need to be on our guard against being drawn back into this question of whether we need language for thinking because some people use inner speech a lot. That doesn't make them smarter. It just means they're doing things one way and other people are doing it another way. So I think we can we can avoid those questions and the the the implications are that you if you're using in a speech you're you're doing it because you're able to make use or you're enjoying or you're finding benefit from making use of this cool tool that you've got available to you. Um when we look at how inner speech develops in childhood again going back to Vigotssky's theory his insight was that inner speech develops through a developmental process which begins with social speech which begins with babies and young children being in social dialogues with others primarily their caregivers parents and caregivers. Those dialogues between the small child and the parent gradually become internalized and they form the stage that we now call private speech. And this is where you see kids talking to themselves out loud as they're working on a task, as they're playing, as they're just dreaming and being creative and mind wandering and whatever. And then the idea is that there's another stage of development which leads to that stuff becoming completely internalized. So it's going on totally silently and that's the inner speech that we many of us recognize um in adulthood. Now we do know that kids who use more more of a particular kind of inner speech particularly a self-regulatory sorry a particular kind of private speech the more of the self-regulatory type. So when you see kids who are talking themselves through a problem and using words to guide themselves, we do see some connections with performance, we do see that those kids seem to be benefiting from that kind of speech because they're solving the task quicker. They're solving the puzzle quicker, for example. Uh we also see these huge individual differences uh between kids. So you could argue that you you would expect to see some cognitive effects of people in adulthood using more in a speech compared to those who using less. And I think people are starting to ask those questions empirically. They come with huge problems. uh one is the way that we assess in a speech and just giving people questionnaires and you've been through dees you know how detailed and sophisticated a method it is simply saying oh let's not bother let's not bother with all that let's just fill in this questionnaire it probably wouldn't satisfy you very much in terms of what the insight that it had given into your mind it certainly doesn't satisfy me having said that questionnaires are pretty handy they're quick and easy to use so we use them so there's a question of how you assess test the inner speech but also there's a danger of just lumping all different kinds of inner speech together. So, if I asked you, you know, who are the cleverest people you know, and then I said, are they the people who talk the most? You'd think that was a really dumb question, right? Because some people talk a lot, some people don't say very much at all. It's not something you particularly correlate with with intelligence or otherwise. And asking the same question about inner speech is really just as misguided. Is it just a lot of inner speech versus not so much inner speech? Really the question we should be asking is what kind of inner speech are people using? What forms is it taking? What functions are those different forms mapping onto? And then we'll build up a better pro better profile of how somebody is using inner speech. And then the next sort of second bit to to the answer is inner speech is not always a positive thing. Inner speech can be really penicious and we can use words, as I've already said, to beat ourselves up, to punish ourselves, to criticize ourselves. And we do do that. We do that quite a bit. And some people do that more than others. And for some people, inner speech is a real burden. It's a real um weapon that they're using against themselves. And in in contexts like depression and anxiety, we call it rumination. We we call it excessive thinking, brooding on a particular topic in words which is really just a kind of negative inner speech. So you can kind of understand why some people I mean when I give talks on this topics or there's always somebody comes up to me and says I'm I practice meditation and I'm trying to silence the inner voices and I'm like okay well if your inner voices are bothering you then that sounds like a pretty good idea but just be aware that inner speech comes in all these different forms and it has all these different veilances and maybe another approach would be to say let's make the most of the positive inner speech and use it and let's try and cut out the more negative stuff. >> Yes. Yeah, it's a good point. We think a lot about frequency of inner speech, but maybe a much more important dimension is content. You know, I think there's pretty, as you say, mind wandering has pretty bad associations with mental health in general. Um, you know, that's default mode network activity. Mind wandering is generally associated with negative mental health outcomes. Not necessarily the case for everybody, but in general that's that's the case. I was speaking to Did you ever collaborate with Gualiaro Pichini? >> No. >> No. He a collaborator of Russ and he did the dees interviews with me. He has a Fantasia and zero samples of inner speech and he's a consciousness philosopher. So I mean right away sort of just dispels any notion you might have of you know you need inner speech to be doing any sort of complex thinking. You know you think of a philosopher like what's their job is to you know kind of think through weird and abstract problems and apparently you don't need inner speech for that because even Russ who is incredibly skeptical of people who don't have who report having no inner speech admitted that there was no samples that Guierro had with inner speech. I think it a comment that I get a lot which annoys me is that video with Russ went went really viral for the channel has over 300,000 views and has thousands of comments and many many comments with this idea of people without inner speech are NPCs. I don't know if you know what an NPC is but non-playable character in in video games like it's a zombie basically. And obviously I think that's wrong and ridiculous. But I was curious to get your thoughts on why exactly that that notion is so is so wrong. >> The notion that some people have no no inner speech or the idea as as a result their minds are empty in some way that they're zombies. >> Yeah, exactly. The idea that if someone doesn't have inner speech they are a zombie. Well, I think I've answered that. You know, I think people use inner speech because it's there for most people and it's pretty handy, but it is not compulsory and some people don't use it. It's hard to know who those people are because questionnaires are not reliable in this context. I'd say if you found somebody who has zero samples on a good series of dees interviews, then that's a pretty good sign that they've got no inner speech. Um, but there's no way that you then conclude that there's nothing going on in their minds. I mean, that's just going back to the old equating thinking with language. Of course, there is plenty going on. I mean, if you want proof, just, you know, find the nearest 12-month-old baby and see what they're capable of doing. See what they are the the extraordinary intelligence they are demonstrating. 12 months is an age when language is starting to get going for for most most babies. So, pick a pick an earlier date if you want, but you know, when language hasn't got going, they're still doing incredible things. Or talk to the family dog or your local friendly bonobo or who whoever and you'll see humans, you'll see other animals doing extraordinary clever things without language. So that's one reason why this just this question is just a non starter. I don't know why we've become so obsessed with this idea of total lack of inner speech. I'm I'm in a way I'm pleased because it means people are talking about inner speech now in a way that they weren't 10 years ago. Um I think it's good in that it is emphasizing the variability in in a speech. I think it is not good in the way it seems to be creating a new psychiatric or neurological condition which I have which I'm extremely uneasy about. I don't think we need that. I don't think it's accurate. I don't think we've got good data on it. I think we can focus instead on the huge variety. You know, the the the way that people differ both within themselves, within their own experience, but also differ from other people. and >> try and understand that and celebrate that. >> Yes. >> So, you're right. There's been an awful lot of um heat on the internet about this question which ultimately stem has stemmed from Russ's work on on on descriptive experience sampling in a kind of roundabout way, but some of it isn't particularly productive. I hope it gets channeled into these more interesting questions of not how much inner speech are used but what kinds of inner speech are you use. >> Yes. >> Because you know you that's what you'd say about another person. You know you wouldn't say how much do they talk you'd say what do they say with their words? What do they do with their words? That's what tells you about the person. >> Yeah. I think it's it's insane. One of the and again this wasn't just a small amount of people. This was hundreds of people. And it's it shows that if if one person's inner experience is a particular way, we have a strong bias to assume that everyone else has the same profile of of inner experience. And if I learned anything from descriptive experience sampling, it is exactly that that could not be further from the truth. And that that fact is beautiful. We vary in an impossibly large amount of dimensions. Like dimensions we don't even know exist. And I think that is the coolest thing in the world. But while that's so obvious to me now, maybe it wasn't as obvious before I started descriptive experience sampling, so many people just refuse to believe this is the case at all. And it's the it's the same with with a fantasia. You know, if someone is a very dominant visual, imagination, imaginer, they just refuse to believe that other people aren't like that. You know, so many comments of I absolutely refuse to believe that aphantasia exists. It's a myth. I even got a comment today saying a Fantasia is a myth. Um, they ab absolutely completely refuse to believe that other people's experience of the world could be different than theirs. And that's just kind of blows my mind. It's like, how can you be that confident? It's such a It's such a ridiculous especially because they they clearly didn't watch my episode with Russ because the one thing that he keeps highlighting again and again is that people don't really understand their own inner experience. their self-reporting is often is often very wrong and that people vary in all of these ways that we didn't know even existed. But even with that, just comment after comment and I'll put up a bunch on the screen. It was wild. And some of them got thousands of likes, you know, of people. I inner speak all the time. You know, I do this from inner speaking. How can they even function as human beings without this? you know, like the the fact that there's any sort of alternate strategy that someone could develop throughout their life to do these tasks. It was just completely a completely impossible idea to them. Why do you think that is? I This is such a strange such a strange one. It's like the human brain is the most complex system in the known universe. It varying a bit in how how we experience the world surely is not that crazy a thing to understand. >> You'd think, wouldn't you? I'm also having having published a book on this topic you know 10 years ago now I where are all these people when my book was coming out because you know all these people who are fanatical about inner speech you know they weren't around then >> it's a it's a sign of how things have changed and I think it's thanks to the work of people like Russ that's really really careful I mean he's one of the most interesting it's pretty much the most interesting scientist I know in the way that he has gone about just carefully describing what is there and plowing this fur totally against all other trends and streams and you know he's he's just pursued this this goal in an extraordinary an extraordinary way which I think has led to real benefits for our understanding of ourselves. So there's a question of why has this why has this come to light just now and it has it is in the last five years that it's happened since that tweet went viral >> and it is something to do with people latching on to it's almost like seeing something that was always there. I I felt when I was writing my book and publishing the book that people were just so familiar with this thing they just assume they had all these assumptions about it and they didn't really think about it. And the book did help I think some people to look at their own minds a new um and it really you know the nicest thing that people said to me about the book and I had this comment a lot which was you know you made me for a few days I just couldn't function because I was just focusing on my own thoughts and thinking oh is that dialogic in a speech is that condensed in a speech and then I came out the end of that little wobble and found I was enjoying my own mind so much more and that was a lovely thing for people to today. Um, and I think that, you know, Russ's work has really helped with that. There's something there's something in the air about it at the moment to do with maybe just a recognition that we can we can have a science of this. We when I was starting out, people would say you can't study inner speech. It's not it's not science. You can't put it under a microscope. You can't measure it. It's not observable. And I kind of lively carried on anyway. and other people around the world were doing a very small number of people working on this. But the you know the graph of papers published on inner speech is just is just on a steady upward incline in the last 10 years or so. So it's it's happening in the scientific research that's helping people to understand that you can be scientific about this stuff. You can say meaningful things about it. It's all good in in in help helping us to be more specific about what the mind does to know our own minds better to know other people's minds better and I think as you say there's a real problem of stigma there's a real problem of people making judgments about other people's minds on the basis of their own minds that's not healthy really socially is it >> yes exactly >> um but I think it's also revealing that our minds are a mystery to ourselves as well and revealing some of that mystery and helping us to be at home in that mystery and I think that can only be positive in a well-being sense to have a better idea of what you should what you can expect to be in your mind all the weird and crazy stuff that is going to go on in your mind not to be frightened about it not to be worried about it just to accept it as part of the wonderful pageant of consciousness um and to be a bit kinder on yourself as as a result I think that's a that's a real, you know, blow to, you know, for for for increased well-being. >> Yeah. Yeah. Well said. I have I have so many thoughts on that. I guess one, you know, we've seen this massive increase in the term neurodeiversity, right? And and and not usually in reference to inner speech. It's it's mostly in relation to ADHD and autism, which have kind of also blown up as labels in the last sort of 5 10 years. But I guess to go back to to echo your earlier point on the power of language. I think now that neurodeiversity is so common amongst our in our vocabularies maybe we are thinking about all these other ways that people can be neurodeiverse. Now I kind of believe that there's not really anything as typical neuro you know there's nothing as no such thing as neurotypical um we can all find ways that we that we vary. Um but possibly the fact that neurodeiversity has become such a big trend and that's just increased and exploded everywhere and there's neurodiversity programs everywhere that you know inner speech and aphantasia I think aphantasia is also exploding um are kind of piggybacking on this trend of realizing that we're you know we're quite different and I think kinder to yourself is a big implication of it but it's also I think made me a lot more empathetic towards others and if I'm having an argument ment. Not really an argument, but a disagreement with somebody and we're not seeing things the same way. Now I now I think about it as in oh we're just really not actually seeing it the same way. You know where I'm saying things with my words and I have this model of what my words mean. They just might have a completely different interpretation of what those words mean. You know if I'm saying imagine this, it's like this and I have this image in my head and I'm like why can't they say the image? Well, maybe they don't see images or maybe they don't see images in the way that I see images. You know, there there's there's just so many ways that people vary and I find it I just think it's unbelievably cool. You mentioned I want to go to um you mentioned dialogical inner thinking there. I want to I want to go to this. What is your dialogical inner speech model? Well, this really just stems from ideas that are there in Vagotssky's work, but because he died so tragically young, he wasn't able to see through. So, I feel that, you know, a lot of my career has just been about trying to unpack some of those amazing insights. Um, and it's there in what I've already said about how in a speech develops that the idea that it develops out of a social dialogue between individuals between say a mother and a child, small child, that dialogue then gets taken on by the child so that she's having a conversation with herself in private speech talking to herself. Uh, and then that becomes inner speech. But the crucial thing there is all the way along all the way through that process is dialogic. So when we're talking to ourselves, we really are talking to ourselves. We're asking questions of ourselves and answering them in exactly the same kind of way as all those years before we were being asked questions by a parent and we were then answering those questions. So it's really just an implication of if that developmental model is right then it follows that much of our inner speech should have that dialogic quality. And the work that we did starting 15 or so years ago when the first paper was published was to say look if you look at Votssky's theory there should be these different kinds of inner speech. Nobody's ever tried to figure that out. Nobody's ever tried to assess them. Nobody's asked people do you have these different kinds of inner speech. So we did that for the first time with our our questionnaire the varieties of inner speech questionnaire which then got revised is now being used in a in a whole bunch of different studies and translated into lots of different languages. Um and it's a it's a handle on those different kinds of inner speech that I was I was talking about. You know I think we need to not be thinking about inner speech as if it's just one thing but rather thinking about the different forms that it takes. And the dialogicality bit of it is something that falls out of this scale. If you if you give it to people, they it seems that they do respond to these items that are about whether the inner speech has this two and fro structure of a conversation. It seems to be a thing for a lot of people. There's huge individual difference of course, but it is a thing. Um replicated in several different languages now. Um but it's what I I've focused on what that sort of buys in a cognitive sense. And I think the dialogicality of inner speech underpins something of the extraordinary flexibility and let's say open-endedness of human cognition. And that relates in turn to creativity and problem solving in all sorts of different ways. So to give the best example of that, you and I neither of us knew where this conversation was going to go. Okay, you had some questions written down, you know, getting on for an hour ago. You had some questions written down, but we have covered ground that neither of us could have predicted. We didn't know where it was going to go because you didn't know what I was going to say and I didn't know what you were going to say. We have gone somewhere new. And you know, I have this has been a brilliant conversation about inner speech. You know, I do have the I've had other conversations. They've all been different because we've never known where they're going to go. It's an endlessly creative renewing process. And if you put that into your own head and instead of processing, you know, crunching numbers in the way that, you know, an oldfashioned computer would just cr process some numbers, crunch some crunch some ones and zeros. Instead, what's going on is this endless process of questioning and answering, of taking a perspective on one's own cognition and responding to it as if that were another person. that I think opens up a lot of the um wonder of human cognition to be creative, to be flexible, to be adaptive, to be open-ended, to not where not know where it's going until it gets there. Uh and to make new things happen. Um, and I think that's something that inner speech probably can do maybe not not uniquely, but because of language, because it's couched in language, it has that very powerful vehicle for doing that. So, I can I can think a thought, if we're going to use those terms, and I can respond to that thought, the utterance as if I were another person. And I think that's what allows me to be creative. It allows my thinking to be flexible just in the same way that our social dialogues with other people are are creative and flexible and open-ended. >> Yeah. Yeah. Really well said. How common is it that that dialogue actually is another person or another self like a simulated other person? And then I'm curious again I'm fascinated in all of the ways that people vary you know have did are there any cases where you've seen people having these like you know eight person roundt discussions where the each sort of identity in their mind actually has sort of a different perspective a different personality is able to come at something from a different angle. Um I'm curious, have you seen cases like that? >> In terms of everyday, let's say ordinary cognition, non-pathological non-pathological cognition, it's not it's not something that's really very easy to document and you'd be talking about case studies. I have lots lots of interesting correspondence with people who have all sorts of interesting ways in which their regular inner speech uh varies, but we don't really have any good scientific data on it yet. The question also shades very interesting interestingly into questions that come up through clinical and abnormal psychology, psychopathology and questions around therapy where therapeutically it can be very valuable to think of the self as holding different positions and yourself being composed of different roles, different characters. That can be very helpful for therapists and their and their patients. It's slightly different. I mean, it's substantially different really in that what what I'm what I've been proposing is a kind of cognitive developmental hypothesis about how thinking works and how brains get things done. It's not a it's not a theory of the self. It's not a therapeutic theory or anything like that. But I think there are very interesting points of commonality that that'll be really exciting to explore in in future research. >> Yeah. And it's something that we I mean the other another one of the five there's five five factors that are um questionnaire picks up. One of them is we call other people and in this factor basically people are are asenting to endorsing statements along the lines of I hear other people's voices in my in my head in my inner speech. And they're not it's not as common as dialogicality for example, but it is there. And I it's really quite common to hear people say that they have conversations with other people in their heads and like kind of named identifiable other other people. And so their inner speech is a kind of internal dialogue between themselves and their boyfriend or themselves and their mom or themselves and another figure who isn't real who is maybe no longer alive or who is only ever of a fictional or who was a fictional character or a tulpa or a game character or a spiritual being. You know that's this has kind of led me to a a kind of new model of what prayer is. prayer and and meditation, spiritual meditation, that really what you're doing is just spending a bit of time with God or spending a bit of time with whatever spiritual um being is important to you. And that's a kind of inner speech. Yeah. Cuz I'm pretty sure I can hold conversations with other people that I know in my life that I have models of and I sort of know their personality through interaction. And I'm pretty sure I can hear in their voice. I don't it's not extremely clear, but I'm pretty sure I can hear a little bit in their voice or at least there's some there's some kind of accent coming across. And I think I can model their perspective. It might not be accurate all the time, of course, because I'm filling in blanks and kind of guessing. I think I can do that with one other person, but I don't think I can do it with two. or it might I might be able to sit down and like really if I put a lot of focus and attention in it do it with two. So I'd just be super curious what it looks like to find people that you know have these re very rich conversations with multiple people and I you bring up a very interesting point as well on like where the the boundaries are with that and where does it get pathological? Where do where where does that become hallucinatory? And is there a form of hallucination that isn't pathological? Can you hear other voices but it not give you any negative emotion? Like can you have all these other voices in your mind that you model and talk to but it not have any negative effect? Like it's only positive. So many questions here. I know I just threw like five at you, but I I think there's just so many really interesting I I don't know. Speak broadly about that. What have you have you seen this in your work? >> Yeah, we've done research on exactly that topic. So, it used to be assumed that hearing voices was always a sign of pathology. You used to be assumed that hearing voices was always a sign of schizophrenia, which is a a scientifically problematic construct in the first place in terms of how it hangs together. just gets ringing is probably a bunch of quite different things that some somehow cluster together in in clinical contexts. Um we know that hearing voices is associated with a whole range of other psychiatric diagnosis. In fact, it's quite hard to find one which is not associated in some way with hearing voices. But then beyond the realms of the psychiatric clinic, we know that a substantial minority of people hear voices quite regularly and are not troubled by them, find them neutral or actively positive. And this is something that has grown in the last again 15 20 years. this recognition that there is this group of people out there who are hearing voices all the time and quite complex voices and multiple voices in some cases but they're not bothered by them. They don't seek psychiatric help. They're not distressed so they don't need psychiatric help. Um give you one example of a a group of people that we've worked with. These are spiritualists. So they're people who um experience interacting with the voices, the spirits of people who are deceased. In the UK, they're actually an organized religion. Uh in other cultures, they're a bit more fringe, but they're they're a church in in the UK. And we've worked with people from these churches in a really constructive way um to understand what what those kinds of victory experiences are like and what effects they can have and how they can come to be non-distressing for people. So that would be one one sort of one group of people who are interesting to work with. another group of people who are not I'm not suggesting a mentally ill at all um just as the spiritualists are not mentally ill um writers fiction writers so typically um writers of novels that we've worked with but you could think of any kind of fiction and probably you take this into films and video games and as well but we've worked with with professional novelists and asking um this cliche, you know, this kind of truism that writers hear the voices of their characters or have to hear the voices of their characters in order to get started with a book. Is that actually is there anything in that? Is it really like hearing a voice? And we've done this with professional writers, but we've also done it with readers of fiction. So to take the latter first, we ask readers of fiction, do they ever when they're reading a book, do they hear the voices of the characters in their heads? And just as you'd expect, there's a huge variation. So we found in our sample like one in seven of the readers said that hearing the voice of the character in a book was as real and lielike and vivid as if there had been an actual person in the room with them. >> Wow. and it's got some press coverage and of course the paper said one in seven people hear the voices of the characters as if they're a real person. But of course the other side of that is that six in seven don't. So it is a minority of people who are having that really rich vivid experience of voice hearing. We asked these people, some of them then responded in in greater depth to say more about the these experiences and we un uncovered some interesting phenomena about the sort of crossover between real and fictional world worlds. And my favorite is one that my colleague Marco Benini uh called experiential crossing. And this is the the best example of this is that somebody's reading Mrs. Doway by Virginia Wolf. They're rereading it, in fact, and I think maybe studying it for a for a class. They put the book down. They go out to the flat down into the street to get a coffee. They walk into Starbucks, but instead of seeing the inside of Starbucks as they themselves would would experience it, they're experiencing it as Mrs. Doway, as the character in this book that they've been reading. And I've I've had this it was great when we picked up on this because I've had this experience a lot. I still have it when I when I'm reading something that I that I'm really taken by a feeling like I'm entering that mindset as a character that I'm becoming that character in some way. But the interesting thing here is you is that it's one thing to be doing that whilst you're sitting down with the book, but then to be taking that out into the world with you uh in your everyday interaction is is something else again. So there's something going on with with readers of fiction in terms of the way they take on the voices of of characters that they're reading about. And this might just be a kind of specific kind of inner speech. That might be one that might be the best way of describing it. As far as the writers are concerned, we asked a a group of writers who were passing through an international book festival this question of whether they actually hear the voices of their characters. And again, as you'd expect, huge variation. I think the press probably wanted us to pin down some special psychological detail that made a writer a writer. Sorry, we weren't going to do that. We we didn't expect to do that and we didn't do that. We show we we showed instead that there was a huge amount of variation. But I think the most you know one one thing to take away from those finding is that for writers it isn't like an intrusive voice addressing you commanding you because in order to make it work as a writer you kind of need that not to happen. You need to be off the scene. You need to be kind of in control but not part of the action. And in fact, the most common description that we found was of writers describing it not like hearing the voices, but more like overhearing the voices, >> more like eavesdropping on on a conversation. And I write fiction myself and I've had I have exactly this experience that I um I need to hear my characters speaking but I don't hear them speaking to me and I don't really want them speaking to me because I want them to be speaking to each other and I want to be picking up on what they're saying to each other. And there's only one exception to that where I felt that a character that two two of my characters were actually speaking directly to me and it felt quite strange. It felt like a a bit of a glitch in in in the system. It wasn't quite supposed to be like that. >> Right. Can I give you I find this so fascinating. I had a conversation with your colleague Ben Alderson day and I I I loved this. I thought it was so so cool. But I have a hypothesis that for this that I want to run by you and get your get your thoughts on. So I'm a big fan of predictive processing accounts of of the brain, right? So the brain sits in its black box and it's really trying to figure out the causes of these sensory signals that it's receiving. And if you're a writer and you're putting all this emotion into a character and you're you're writing this story and you're you're so engaged and you're you're as you create this character, you're your brain is also getting all of this information. And the best way it can maybe make sense of all of this information about this character that has again since you're writing it, there's so much emotion, there's so much intensity maybe to to your relationship with that character that the best explanation it has for all of that data is possibly that it is another self. And then your social modeling infrastructure is kind of like kicked up into gear there and it's actually simulating this like it's another self. It's a it's maybe part of your social infrastructure because that's just the best explanation for having all this emotion about something like what else could it be if you know the brain didn't really it's actually an interesting question if the if the brain evolved with writing but you can you can say that probably quite a lot of the brain's evolution you know writing didn't exist so maybe the only way all of this information would come into the brain about a character is if it was a real person out there I'm curious if Do you think that has any basis at all or so maybe sort of fits the idea? Because I think it's an interesting one. Obviously, it's it's a hypothesis. It sort of makes sense to me. >> It could explain why people become writers, why they feel they've got these books inside them that they need to set down. I think the actual process of starting writing a new novel is more is a bit more deliberate and that you have an idea for a story and you you need you start to shape the characters and you have you have themes you want to explore and you don't shape the characters they sort of come to you in my experience anyway. I think the what you described actually I think fits better with a hypothesis that we've had about children's imaginary friends. So the puzzle of why a third to twothirds of regular kids have these imaginary companions and I've hypothesized that that could and you can make sense of this in terms of a predictive processing argument. You can actually make sense of anything in terms of a predictive processing argument. It's just a different framework for understanding how the mind works. It's not a theory. It's a different like the computer metaphor was a useful way of thinking about how the mind works. the predictive processing is the is the same to my mind. But anyway, I think that would be a useful way of thinking about how young children start to engage with these imaginary um if you like fictional companions and it's very common and it's used to be associated with negative mental health outcomes but it's not not now thankfully. But if if you think about again going back to Vigotssky and that process of internalizing voices, the young child's mind is going to be a pretty strange thing, pretty strange place to be in terms of all these different voices, all these bits of dialogue in the in the process of being assimilated, being taken into the self, all this learning going on, all these new experiences. And there we've actually hypothesized that creating an imaginary companion might be a way of raifying these in these kind of semi-digested social dialogues that they're take that kids are taking into themselves to form their own inner speech. And maybe when when you you know we know that adults continue to have imaginary companions maybe are engaging with imaginary companions with fictional characters with game characters with topas spiritual beings. Maybe all of that is just a sort of long distance hangover from from what was going on when we were small children. >> Yeah. >> We tried to figure that out. We've asked we've we've done some research asking people about imaginary friends in childhood whether they still have them as adults and we found some some connections with the different kinds of inner speech that people have but it's very very preliminary data and you know lots more needs to be done in that space I think. Very cool, Charles. I think you're awesome. I think your work is so important. I respect you so much because I think it's so bloody hard to get at firsthand phenomenology, right? To get at subjective experience is just so impossibly hard when people don't even understand their own subjective experience. I I respect researchers so much who dedicate their life to to really trying to understand it. You and Russ, I've learned so much from it. I want to keep having these conversations because I think it is such an interesting message. I want to help spread it, but I know we're over time. We didn't get to talk about topammancers. I really wanted to talk about topammancers because they're so so ultra strange and bizarre and that could could be a whole podcast in of itself. Um, but games, let's do that sometime. You mentioned NPCs and I'm doing some work with video game companies asking them to to think about the inner world of their video game characters and that that includes NPC. >> Incredibly cool. Incredibly cool. We'll have to save those for a round two. But thank you so much for your time. Thank you for your work. I look forward to keeping in touch and yeah, thank you for the time. That was that was so much fun. >> Great to talk to you today and yeah, let's speak again sometime. 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