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The serious side of our mind | Ruth Byrne | TEDxTrinityCollegeDublin


your understanding of the world around

your understanding of the world around you and everyone in it depends on your

you and everyone in it depends on your

you and everyone in it depends on your imagination of how it could be different

the imagination is one of the last

the imagination is one of the last uncharted terrains of the human mind

uncharted terrains of the human mind

uncharted terrains of the human mind there’s still a lot we don’t know about

there’s still a lot we don’t know about

there’s still a lot we don’t know about yet we know that people can create

yet we know that people can create

yet we know that people can create alternatives to reality we all know that

alternatives to reality we all know that

alternatives to reality we all know that alternatives to reality are intriguing

alternatives to reality are intriguing

alternatives to reality are intriguing in art in literature and theater in

in art in literature and theater in

in art in literature and theater in cinema alternatives to reality entertain

cinema alternatives to reality entertain

cinema alternatives to reality entertain us but recent discoveries in cognitive

us but recent discoveries in cognitive

us but recent discoveries in cognitive science research about the human

science research about the human

science research about the human imagination are surprising and one of

imagination are surprising and one of

imagination are surprising and one of the big surprises is that the

the big surprises is that the

the big surprises is that the imagination isn’t just for entertainment

imagination isn’t just for entertainment

imagination isn’t just for entertainment the imagination carries out some of the

the imagination carries out some of the

the imagination carries out some of the most serious work of the human mind we

most serious work of the human mind we

most serious work of the human mind we all create alternatives to reality very

all create alternatives to reality very

all create alternatives to reality very often in our everyday lives we imagine

often in our everyday lives we imagine

often in our everyday lives we imagine how things could have turned out

how things could have turned out

how things could have turned out differently if only especially after bad

differently if only especially after bad

differently if only especially after bad things happen like a car accident we

things happen like a car accident we

things happen like a car accident we create alternatives to reality to

create alternatives to reality to

create alternatives to reality to explain the past we can think about the

explain the past we can think about the

explain the past we can think about the events that occurred before a bad

events that occurred before a bad

events that occurred before a bad outcome and we can work out the causes

outcome and we can work out the causes

outcome and we can work out the causes between those events and the bad outcome

between those events and the bad outcome

between those events and the bad outcome we can imagine that if one of those

we can imagine that if one of those

we can imagine that if one of those things hadn’t happened the bad outcome

things hadn’t happened the bad outcome

things hadn’t happened the bad outcome wouldn’t have happened either we create

wouldn’t have happened either we create

wouldn’t have happened either we create alternatives to reality also to prepare

alternatives to reality also to prepare

alternatives to reality also to prepare for the future we make better decisions

for the future we make better decisions

for the future we make better decisions we learn from our mistakes how to

we learn from our mistakes how to

we learn from our mistakes how to prevent bad things from happening again

prevent bad things from happening again

prevent bad things from happening again because we can imagine alternatives and

because we can imagine alternatives and

because we can imagine alternatives and those imagined alternatives give rise to

those imagined alternatives give rise to

those imagined alternatives give rise to various emotional experiences we

various emotional experiences we

various emotional experiences we experience regret and guilt and hope and

experience regret and guilt and hope and

experience regret and guilt and hope and relief because we think about the way a

relief because we think about the way a

relief because we think about the way a situation turned out we imagine how

situation turned out we imagine how

situation turned out we imagine how turned out differently and in the

turned out differently and in the

turned out differently and in the comparison of the two the emotion

comparison of the two the emotion

comparison of the two the emotion emerges these imagined alternatives to

emerges these imagined alternatives to

emerges these imagined alternatives to reality also give rise to our moral and

reality also give rise to our moral and

reality also give rise to our moral and legal judgments and decisions we

legal judgments and decisions we

legal judgments and decisions we allocate blame and fault and

allocate blame and fault and

allocate blame and fault and responsibility because we can think

responsibility because we can think

responsibility because we can think about not only what someone could have

about not only what someone could have

about not only what someone could have done differently but also what they

done differently but also what they

done differently but also what they should have done differently and when we

should have done differently and when we

should have done differently and when we lose the ability to imagine alternatives

lose the ability to imagine alternatives

lose the ability to imagine alternatives to reality that is devastating for us

to reality that is devastating for us

to reality that is devastating for us individuals who acquire brain injuries

individuals who acquire brain injuries

individuals who acquire brain injuries particularly to the prefrontal cortex

particularly to the prefrontal cortex

particularly to the prefrontal cortex sometimes unfortunately lose the

sometimes unfortunately lose the

sometimes unfortunately lose the capacity to spontaneously imagine how

capacity to spontaneously imagine how

capacity to spontaneously imagine how things could have turned out differently

things could have turned out differently

things could have turned out differently and they have difficulty in making

and they have difficulty in making

and they have difficulty in making decisions in learning from mistakes and

decisions in learning from mistakes and

decisions in learning from mistakes and an allocating blame and fault

an allocating blame and fault

an allocating blame and fault appropriately so these are all examples

appropriately so these are all examples

appropriately so these are all examples of some of the very serious and

of some of the very serious and

of some of the very serious and important work that the human

important work that the human

important work that the human imagination does for the mind but

imagination does for the mind but

imagination does for the mind but there’s one other thing that we all need

there’s one other thing that we all need

there’s one other thing that we all need to be able to do that we depend on our

to be able to do that we depend on our

to be able to do that we depend on our imaginations for we all need to be able

imaginations for we all need to be able

imaginations for we all need to be able to work out what’s in someone else’s

to work out what’s in someone else’s

to work out what’s in someone else’s head we need to be able to figure out

head we need to be able to figure out

head we need to be able to figure out what other people are thinking but

what other people are thinking but

what other people are thinking but taking someone else’s perspective is

taking someone else’s perspective is

taking someone else’s perspective is really difficult it’s not something that

really difficult it’s not something that

really difficult it’s not something that we’re born with young children can’t do

we’re born with young children can’t do

we’re born with young children can’t do it it has to develop over the course of

it it has to develop over the course of

it it has to develop over the course of childhood by the age of 4 to 5 years

childhood by the age of 4 to 5 years

childhood by the age of 4 to 5 years young children begin to appreciate that

young children begin to appreciate that

young children begin to appreciate that other people may have a different

other people may have a different

other people may have a different understanding of the world from them

understanding of the world from them

understanding of the world from them they begin to get that their friend may

they begin to get that their friend may

they begin to get that their friend may have a mistaken belief about where

have a mistaken belief about where

have a mistaken belief about where objects are or what objects are made of

objects are or what objects are made of

objects are or what objects are made of by the age of 7 to 8 years young

by the age of 7 to 8 years young

by the age of 7 to 8 years young children begin to appreciate that others

children begin to appreciate that others

children begin to appreciate that others might have a different understanding not

might have a different understanding not

might have a different understanding not just of the physic

just of the physic

just of the physic world but also of the mental world they

world but also of the mental world they

world but also of the mental world they begin to get that their friend might

begin to get that their friend might

begin to get that their friend might have mistaken beliefs about what someone

have mistaken beliefs about what someone

have mistaken beliefs about what someone else’s thinking about what’s the reasons

else’s thinking about what’s the reasons

else’s thinking about what’s the reasons for their actions about what’s going on

for their actions about what’s going on

for their actions about what’s going on in their minds and that ability to

in their minds and that ability to

in their minds and that ability to mind-read to work out what’s in someone

mind-read to work out what’s in someone

mind-read to work out what’s in someone else’s head depends on our ability to

else’s head depends on our ability to

else’s head depends on our ability to imagine alternatives to reality as we

imagine alternatives to reality as we

imagine alternatives to reality as we understand it here’s one example of that

understand it here’s one example of that

understand it here’s one example of that we invited young children to listen to

we invited young children to listen to

we invited young children to listen to stories they listened to them over

stories they listened to them over

stories they listened to them over earphones and they saw pictures

earphones and they saw pictures

earphones and they saw pictures corresponding to them on screen they

corresponding to them on screen they

corresponding to them on screen they heard lots of different stories about

heard lots of different stories about

heard lots of different stories about lots of different everyday events here’s

lots of different everyday events here’s

lots of different everyday events here’s one example they looked at pictures and

one example they looked at pictures and

one example they looked at pictures and we’re told in the bedroom John sees and

we’re told in the bedroom John sees and

we’re told in the bedroom John sees and picking up toys she says she wants to

picking up toys she says she wants to

picking up toys she says she wants to find her ball to play with it

find her ball to play with it

find her ball to play with it John goes into the kitchen while he’s

John goes into the kitchen while he’s

John goes into the kitchen while he’s away Ann’s mother tells her to tidy her

away Ann’s mother tells her to tidy her

away Ann’s mother tells her to tidy her room when John comes back he sees an

room when John comes back he sees an

room when John comes back he sees an picking up toys we asked children a

picking up toys we asked children a

picking up toys we asked children a question about an imagined alternative

question about an imagined alternative

question about an imagined alternative to reality if Ann’s mother hadn’t told

to reality if Ann’s mother hadn’t told

to reality if Ann’s mother hadn’t told her to tidy her room what would have

her to tidy her room what would have

her to tidy her room what would have been the reason that she was picking up

been the reason that she was picking up

been the reason that she was picking up toys we also asked them a question about

toys we also asked them a question about

toys we also asked them a question about mind-reading we asked them what will

mind-reading we asked them what will

mind-reading we asked them what will John believe is the reason that Ann is

John believe is the reason that Ann is

John believe is the reason that Ann is picking up toys here’s how they managed

picking up toys here’s how they managed

picking up toys here’s how they managed with the imagination questions what

with the imagination questions what

with the imagination questions what would have been the reason if her mother

would have been the reason if her mother

would have been the reason if her mother hadn’t told her to pick up toys you can

hadn’t told her to pick up toys you can

hadn’t told her to pick up toys you can see that the young children at 6 years

see that the young children at 6 years

see that the young children at 6 years of age have real difficulty answering

of age have real difficulty answering

of age have real difficulty answering imagination questions correctly by eight

imagination questions correctly by eight

imagination questions correctly by eight years of age they’re much better at it

years of age they’re much better at it

years of age they’re much better at it and on a 10 that there are

and on a 10 that there are

and on a 10 that there are perfect here’s how they fare on the

perfect here’s how they fare on the

perfect here’s how they fare on the mind-reading questions what will John

mind-reading questions what will John

mind-reading questions what will John believe is the reason that Ann’s picking

believe is the reason that Ann’s picking

believe is the reason that Ann’s picking up toys you can see again that the six

up toys you can see again that the six

up toys you can see again that the six year olds are having real difficulty

year olds are having real difficulty

year olds are having real difficulty answering mind-reading questions

answering mind-reading questions

answering mind-reading questions correctly and you can also see that

correctly and you can also see that

correctly and you can also see that they’re having more difficulty with the

they’re having more difficulty with the

they’re having more difficulty with the mind-reading questions than with the

mind-reading questions than with the

mind-reading questions than with the imagination questions children’s

imagination questions children’s

imagination questions children’s imagination skills develop before their

imagination skills develop before their

imagination skills develop before their mind reading skills the two are really

mind reading skills the two are really

mind reading skills the two are really very closely correlated children

very closely correlated children

very closely correlated children generally will answer both sorts of

generally will answer both sorts of

generally will answer both sorts of questions correctly or they’ll get

questions correctly or they’ll get

questions correctly or they’ll get neither sort of question correct in the

neither sort of question correct in the

neither sort of question correct in the transition period we sometimes see

transition period we sometimes see

transition period we sometimes see children who are able to answer

children who are able to answer

children who are able to answer imagination questions and not able to

imagination questions and not able to

imagination questions and not able to answer the mind-reading questions but we

answer the mind-reading questions but we

answer the mind-reading questions but we just don’t tend to see children who can

just don’t tend to see children who can

just don’t tend to see children who can answer mind-reading questions so they

answer mind-reading questions so they

answer mind-reading questions so they can take someone else’s perspective but

can take someone else’s perspective but

can take someone else’s perspective but they can’t answer the imagination

they can’t answer the imagination

they can’t answer the imagination questions they can’t imagine how things

questions they can’t imagine how things

questions they can’t imagine how things could have turned out differently and if

could have turned out differently and if

could have turned out differently and if the development of those imagination

the development of those imagination

the development of those imagination skills is delayed for one reason or

skills is delayed for one reason or

skills is delayed for one reason or another then so too is the development

another then so too is the development

another then so too is the development of mind reading skills that happens with

of mind reading skills that happens with

of mind reading skills that happens with children with autistic spectrum disorder

children with autistic spectrum disorder

children with autistic spectrum disorder so here’s how children with

so here’s how children with

so here’s how children with high-functioning autism and Asperger’s

high-functioning autism and Asperger’s

high-functioning autism and Asperger’s syndrome fared when we asked them the

syndrome fared when we asked them the

syndrome fared when we asked them the imagination question if Anne’s mother

imagination question if Anne’s mother

imagination question if Anne’s mother hadn’t told her to tidy a room what

hadn’t told her to tidy a room what

hadn’t told her to tidy a room what would have been the reason she was

would have been the reason she was

would have been the reason she was picking up toys you can see that the

picking up toys you can see that the

picking up toys you can see that the six-year-olds have real difficulty with

six-year-olds have real difficulty with

six-year-olds have real difficulty with this question but you can also see now

this question but you can also see now

this question but you can also see now that the eight-year-olds are having

that the eight-year-olds are having

that the eight-year-olds are having difficulty with this question

difficulty with this question

difficulty with this question unlike the typically developing children

unlike the typically developing children

unlike the typically developing children here’s how they fare with the

here’s how they fare with the

here’s how they fare with the mind-reading question again you can see

mind-reading question again you can see

mind-reading question again you can see that the six-year-olds are having

that the six-year-olds are having

that the six-year-olds are having difficulty with it and at 8 years

difficulty with it and at 8 years

difficulty with it and at 8 years they’re having difficulty with it again

they’re having difficulty with it again

they’re having difficulty with it again unlike the typically-developing show

unlike the typically-developing show

unlike the typically-developing show and you can also see that once again

and you can also see that once again

and you can also see that once again their imagination outstrips their mind

their imagination outstrips their mind

their imagination outstrips their mind reading skill and importantly you can

reading skill and importantly you can

reading skill and importantly you can also see that by 10 years of age they’re

also see that by 10 years of age they’re

also see that by 10 years of age they’re beginning to get good at both this is

beginning to get good at both this is

beginning to get good at both this is the developmental delay but otherwise

the developmental delay but otherwise

the developmental delay but otherwise the shape of the development of their

the shape of the development of their

the shape of the development of their imagination and mind-reading skills is

imagination and mind-reading skills is

imagination and mind-reading skills is the same as for children who are

the same as for children who are

the same as for children who are developing typically so this is one

developing typically so this is one

developing typically so this is one example of the very serious work that

example of the very serious work that

example of the very serious work that the imagination does the mind it enables

the imagination does the mind it enables

the imagination does the mind it enables us to take someone else’s perspective to

us to take someone else’s perspective to

us to take someone else’s perspective to work out what other people are thinking

work out what other people are thinking

work out what other people are thinking because we can imagine alternatives to

because we can imagine alternatives to

because we can imagine alternatives to reality as we understand it now there’s

reality as we understand it now there’s

reality as we understand it now there’s a profound consequence of these

a profound consequence of these

a profound consequence of these discoveries in cognitive science that

discoveries in cognitive science that

discoveries in cognitive science that the imagination does serious work and

the imagination does serious work and

the imagination does serious work and that consequence is that imagination and

that consequence is that imagination and

that consequence is that imagination and reason are not opposites creativity and

reason are not opposites creativity and

reason are not opposites creativity and logic are not in conflict instead it

logic are not in conflict instead it

logic are not in conflict instead it seems to be the case than imagination

seems to be the case than imagination

seems to be the case than imagination and rationality rely on the same sorts

and rationality rely on the same sorts

and rationality rely on the same sorts of computations within the human mind

of computations within the human mind

of computations within the human mind let me give you an example of that we

let me give you an example of that we

let me give you an example of that we all have difficulties with certain

all have difficulties with certain

all have difficulties with certain logical inferences so suppose a friend

logical inferences so suppose a friend

logical inferences so suppose a friend of yours is describing the contents of a

of yours is describing the contents of a

of yours is describing the contents of a nearby shop and says something about

nearby shop and says something about

nearby shop and says something about what’s possibly there if there are

what’s possibly there if there are

what’s possibly there if there are oranges there are pears and then suppose

oranges there are pears and then suppose

oranges there are pears and then suppose subsequently you discovered that in fact

subsequently you discovered that in fact

subsequently you discovered that in fact there are no prayers in that shop how

there are no prayers in that shop how

there are no prayers in that shop how can you and fair most people who we

can you and fair most people who we

can you and fair most people who we asked say that they can unfair that

asked say that they can unfair that

asked say that they can unfair that there are no oranges about half of the

there are no oranges about half of the

there are no oranges about half of the people we ask will make that inference

people we ask will make that inference

people we ask will make that inference but the other half of people who we

but the other half of people who we

but the other half of people who we asked to make this inference will say

asked to make this inference will say

asked to make this inference will say that they can’t infer anything about

that they can’t infer anything about

that they can’t infer anything about whether there are oranges or no oranges

whether there are oranges or no oranges

whether there are oranges or no oranges the difficulty with this inference seems

the difficulty with this inference seems

the difficulty with this inference seems to arise because people have

to arise because people have

to arise because people have working memories and so we tend to

working memories and so we tend to

working memories and so we tend to construct just a single mental model

construct just a single mental model

construct just a single mental model corresponding to what has been described

corresponding to what has been described

corresponding to what has been described to us in conversation so we tend to

to us in conversation so we tend to

to us in conversation so we tend to think just about the oranges and pears

think just about the oranges and pears

think just about the oranges and pears we don’t think about any other

we don’t think about any other

we don’t think about any other possibility that all changes when our

possibility that all changes when our

possibility that all changes when our imagination is engaged so if your friend

imagination is engaged so if your friend

imagination is engaged so if your friend and they were describing what might be

and they were describing what might be

and they were describing what might be in the nearby shop had instead said

in the nearby shop had instead said

in the nearby shop had instead said something about an alternative to

something about an alternative to

something about an alternative to reality and it said if there had been

reality and it said if there had been

reality and it said if there had been oranges there would have been pears now

oranges there would have been pears now

oranges there would have been pears now when you’re told that there are no pairs

when you’re told that there are no pairs

when you’re told that there are no pairs in the shop everyone we ask says very

in the shop everyone we ask says very

in the shop everyone we ask says very readily that there are no oranges that

readily that there are no oranges that

readily that there are no oranges that inference seems to be very easy to make

inference seems to be very easy to make

inference seems to be very easy to make when it’s couched in terms of

when it’s couched in terms of

when it’s couched in terms of alternatives to reality our imagination

alternatives to reality our imagination

alternatives to reality our imagination allows us to overcome the limitations in

allows us to overcome the limitations in

allows us to overcome the limitations in our working memory it allows us to

our working memory it allows us to

our working memory it allows us to envisage multiple alternatives

envisage multiple alternatives

envisage multiple alternatives simultaneously so we are able to think

simultaneously so we are able to think

simultaneously so we are able to think about reality and an alternative to

about reality and an alternative to

about reality and an alternative to reality at the same time now one way to

reality at the same time now one way to

reality at the same time now one way to examine that is to simply look at where

examine that is to simply look at where

examine that is to simply look at where people look when they listen to stories

people look when they listen to stories

people look when they listen to stories that include something about an

that include something about an

that include something about an alternative to reality so we asked

alternative to reality so we asked

alternative to reality so we asked adults to listen to simple stories about

adults to listen to simple stories about

adults to listen to simple stories about lots of different everyday events they

lots of different everyday events they

lots of different everyday events they listen to the stories over earphones and

listen to the stories over earphones and

listen to the stories over earphones and they saw on-screen very simple visual

they saw on-screen very simple visual

they saw on-screen very simple visual displays and tiny cameras recorded very

displays and tiny cameras recorded very

displays and tiny cameras recorded very precisely where their eyes moved in

precisely where their eyes moved in

precisely where their eyes moved in those visual displays so that we could

those visual displays so that we could

those visual displays so that we could see what people are looking at and

see what people are looking at and

see what people are looking at and figure out what they’re thinking about

figure out what they’re thinking about

figure out what they’re thinking about as they’re hearing about an alternative

as they’re hearing about an alternative

as they’re hearing about an alternative to reality so in the course of these

to reality so in the course of these

to reality so in the course of these stories they’d hear something about a

stories they’d hear something about a

stories they’d hear something about a possibility like if there are oranges

possibility like if there are oranges

possibility like if there are oranges there are pears and they’d see an array

there are pears and they’d see an array

there are pears and they’d see an array a visual

a visual

a visual of simple images like an orange and a

of simple images like an orange and a

of simple images like an orange and a pear an orange and a pair with a cross

pear an orange and a pair with a cross

pear an orange and a pair with a cross strike through an image of an apple and

strike through an image of an apple and

strike through an image of an apple and a strawberry and an image of no apple

a strawberry and an image of no apple

a strawberry and an image of no apple and no strawberry and here’s what they

and no strawberry and here’s what they

and no strawberry and here’s what they look at when they’re listening to the

look at when they’re listening to the

look at when they’re listening to the possibility if there are oranges there

possibility if there are oranges there

possibility if there are oranges there are pears they start out looking at all

are pears they start out looking at all

are pears they start out looking at all of the four images but very rapidly

of the four images but very rapidly

of the four images but very rapidly within a matter of milliseconds as they

within a matter of milliseconds as they

within a matter of milliseconds as they hear about the possibility if there are

hear about the possibility if there are

hear about the possibility if there are oranges there are pears their eyes move

oranges there are pears their eyes move

oranges there are pears their eyes move to the image of the orange and the pear

to the image of the orange and the pear

to the image of the orange and the pear and stay focused on last through edge

and stay focused on last through edge

and stay focused on last through edge their eyes don’t move to the other three

their eyes don’t move to the other three

their eyes don’t move to the other three images you see a very different picture

images you see a very different picture

images you see a very different picture when instead the story contains a

when instead the story contains a

when instead the story contains a reference to an alternative to reality

reference to an alternative to reality

reference to an alternative to reality if instead they heard if there had been

if instead they heard if there had been

if instead they heard if there had been oranges there would have been pears now

oranges there would have been pears now

oranges there would have been pears now what you see is once again they start

what you see is once again they start

what you see is once again they start out looking at all four images but they

out looking at all four images but they

out looking at all four images but they begin their eyes move to the image of

begin their eyes move to the image of

begin their eyes move to the image of the orange and the pear and the image of

the orange and the pear and the image of

the orange and the pear and the image of no orange and no pear and their eyes

no orange and no pear and their eyes

no orange and no pear and their eyes stay focused on those two images and

stay focused on those two images and

stay focused on those two images and they don’t pay attention to the other

they don’t pay attention to the other

they don’t pay attention to the other two images throughout hearing about that

two images throughout hearing about that

two images throughout hearing about that alternative to reality and so this is an

alternative to reality and so this is an

alternative to reality and so this is an example of how our imagination seems to

example of how our imagination seems to

example of how our imagination seems to allow us to keep multiple alternatives

allow us to keep multiple alternatives

allow us to keep multiple alternatives in mind it allows us to overcome our

in mind it allows us to overcome our

in mind it allows us to overcome our working memory limitations and it’s in

working memory limitations and it’s in

working memory limitations and it’s in that way that the imagination helps us

that way that the imagination helps us

that way that the imagination helps us to reason and these are some of the

to reason and these are some of the

to reason and these are some of the reasons why cognitive scientists are now

reasons why cognitive scientists are now

reasons why cognitive scientists are now beginning to conclude that the

beginning to conclude that the

beginning to conclude that the imagination far from being an optional

imagination far from being an optional

imagination far from being an optional extra for our amusement is in fact at

extra for our amusement is in fact at

extra for our amusement is in fact at the very core of our cognition so next

the very core of our cognition so next

the very core of our cognition so next time you want to understand something

time you want to understand something

time you want to understand something the world around you or the people in it

the world around you or the people in it

the world around you or the people in it try creating an alternative to reality

try creating an alternative to reality

try creating an alternative to reality i imagining how things could have been

i imagining how things could have been

i imagining how things could have been different

different

different use your imagination it’s more useful

use your imagination it’s more useful

use your imagination it’s more useful than you may think

”

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