Alison Gopnik: What do babies think?

395,642 views ・ 2011-10-10

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Traducător: Denise RQ Corector: Maria Tancu
00:15
What is going on
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Ce se petrece
00:17
in this baby's mind?
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in mintea unui bebelus?
00:19
If you'd asked people this 30 years ago,
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Daca ai fi intrebat oamenii acum 30 de ani,
00:21
most people, including psychologists,
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majoritatea, inclusiv psihologii
00:23
would have said that this baby was irrational,
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ti-ar fi raspuns ca acest bebelus este irational,
00:26
illogical, egocentric --
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ilogic, egocentric-
00:28
that he couldn't take the perspective of another person
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ca nu este capabil sa se puna in locul altei persoane
00:30
or understand cause and effect.
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sau sa inteleaga procesul cauzei si efectului.
00:32
In the last 20 years,
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In ultimii 20 de ani,
00:34
developmental science has completely overturned that picture.
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stiinta sociala a dezvoltarii a schimbat complet aceasta orientare.
00:37
So in some ways,
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In asa fel incat,
00:39
we think that this baby's thinking
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acum consideram ca gandirea acestui bebelus
00:41
is like the thinking of the most brilliant scientists.
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este asemanatoare cu cea a unora dintre cei mai straluciti oameni de stiinta.
00:45
Let me give you just one example of this.
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Permiteti-mi sa va ofer un unic exemplu.
00:47
One thing that this baby could be thinking about,
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Unul dintre lucrurile la care acest bebelus s-ar putea sa se gandeasca
00:50
that could be going on in his mind,
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unul dintre lucrurile care ar putea sa-i treaca prin minte
00:52
is trying to figure out
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este sa incerce sa-si dea seama
00:54
what's going on in the mind of that other baby.
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ceea ce-i trece prin cap celuilalt bebelus.
00:57
After all, one of the things that's hardest for all of us to do
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La urma urmelor, unul dintre cele mai grele lucruri pentru noi toti
01:00
is to figure out what other people are thinking and feeling.
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este sa ne dam seama ceea ce gandesc si simt alte persoane.
01:03
And maybe the hardest thing of all
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Si, probabil, cel mai greu lucru dintre toate este
01:05
is to figure out that what other people think and feel
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sa-ti dai seama ca ceea ce alti gandesc si simt
01:08
isn't actually exactly like what we think and feel.
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nu este deloc identic cu ceea ce noi gandim si simtim.
01:10
Anyone who's followed politics can testify
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Orisicine care face politica poate sa dea marturie
01:12
to how hard that is for some people to get.
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de cat este de greu sa-ti dai seama de ceea ce gandesc unii dintre noi.
01:15
We wanted to know
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Noi am vrut sa stim
01:17
if babies and young children
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daca bebelusii si tinerii
01:19
could understand this really profound thing about other people.
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sunt in stare sa inteleaga acest lucru atat de profund.
01:22
Now the question is: How could we ask them?
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Acum intrebarea este: Cum am putea sa-i intrebam in legatura cu asta?
01:24
Babies, after all, can't talk,
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Pentru ca, la urma urmei, bebelusii nu pot sa vorbeasca
01:26
and if you ask a three year-old
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si daca ii ceri unui copil de 3 ani
01:28
to tell you what he thinks,
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sa-ti spuna ceea ce gandeste,
01:30
what you'll get is a beautiful stream of consciousness monologue
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ceea ce vei obtine este un extraordinar monolog de flux al constiintei
01:33
about ponies and birthdays and things like that.
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in legatura cu niste ponei, zile de nastere si chestii de genul asta.
01:36
So how do we actually ask them the question?
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Deci, mai exact, cum le punem intrebarea?
01:39
Well it turns out that the secret was broccoli.
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Pai bine, rezulta ca secretul este brocoli-ul.
01:42
What we did -- Betty Rapacholi, who was one of my students, and I --
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Ceea ce am facut-Betty Rapacholi, o studenta de-a mea, si cu mine-
01:46
was actually to give the babies two bowls of food:
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a fost sa le dam acestor bebelusi 2 boluri cu mancare:
01:49
one bowl of raw broccoli
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un bol cu brocoli crud
01:51
and one bowl of delicious goldfish crackers.
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iar altul cu biscuiti deliciosi in forma de pestisori.
01:54
Now all of the babies, even in Berkley,
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Si tuturor bebelusilor, inclusiv celor din Berkley,
01:57
like the crackers and don't like the raw broccoli.
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le plac biscuiti in timp ce nu vor brocoli crud.
02:00
(Laughter)
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(Rasete)
02:02
But then what Betty did
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Dar ceea ce a continuat sa faca Betty
02:04
was to take a little taste of food from each bowl.
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a fost sa guste un pic din macarea din fiecare bol.
02:07
And she would act as if she liked it or she didn't.
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Si s-a prefacut ca ii placea sau nu ii placea.
02:09
So half the time, she acted
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Asa ca, in jumatate din experimente, a pretins
02:11
as if she liked the crackers and didn't like the broccoli --
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ca ii placeau biscuitii si nu ii placea brocoli-ul
02:13
just like a baby and any other sane person.
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exact ca orice bebelus sau adult sanatos.
02:16
But half the time,
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Dar in cealalta jumatate de experimente,
02:18
what she would do is take a little bit of the broccoli
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a luat un pic din brocoli
02:20
and go, "Mmmmm, broccoli.
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si facea: "Mmmmmmm, brocoli!
02:23
I tasted the broccoli. Mmmmm."
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Tocmai am gustat brocoli-ul. Mmmmmm!"
02:26
And then she would take a little bit of the crackers,
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Dupa care gusta un pic din biscuiti si zicea:
02:28
and she'd go, "Eww, yuck, crackers.
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"Pfui, biscuiti!
02:32
I tasted the crackers. Eww, yuck."
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Am gustat din biscuiti, groaznic!"
02:35
So she'd act as if what she wanted
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Asa ca se prefacea ca ii place
02:37
was just the opposite of what the babies wanted.
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exact acea mancare care nu le placea bebelusilor.
02:40
We did this with 15 and 18 month-old babies.
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Am facut acest experiment cu bebelusi de 15 si 18 luni.
02:42
And then she would simply put her hand out and say,
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Dupa care pur si simplu intindea mana si le spunea:
02:45
"Can you give me some?"
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"Imi dai un pic?"
02:47
So the question is: What would the baby give her,
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Asa ca intrebarea este: Ce o sa ii dea bebelusul,
02:49
what they liked or what she liked?
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ceea ce le placea lor sau ceea ce ii placea ei?
02:51
And the remarkable thing was that 18 month-old babies,
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Iar lucrul cel mai remarcabil a fost ca, bebelusii de 18 luni
02:54
just barely walking and talking,
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care de-abia mergeau si vorbeau,
02:56
would give her the crackers if she liked the crackers,
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ii dadeau biscuti daca ea se prefacuse inainte ca-i placeau,in timp ce
02:59
but they would give her the broccoli if she liked the broccoli.
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altii ii dadeau brocoli, daca ea se prefacuse in fata acestora ca-i placuse brocoli-ul.
03:02
On the other hand,
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Pe de alta parte,
03:04
15 month-olds would stare at her for a long time
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cei de 15 luni mai degraba se uitau lung la ea
03:06
if she acted as if she liked the broccoli,
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in cazul in care ea se prefacea ca ii placuse brocoli-ul,
03:08
like they couldn't figure this out.
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ca si cum: " Nu inteleg de ce ii place brocoli-ul"
03:11
But then after they stared for a long time,
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Dar, dupa ce o priveau timp indelungat,
03:13
they would just give her the crackers,
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ii dadeau biscuiti,
03:15
what they thought everybody must like.
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pentru ca ei credeau ca tuturor trebuie sa le placa biscuitii.
03:17
So there are two really remarkable things about this.
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Asa ca aici avem doua descoperiri extraordinare.
03:20
The first one is that these little 18 month-old babies
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Prima este ca acesti bebelusi de 18 luni,
03:23
have already discovered
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au descoperit deja
03:25
this really profound fact about human nature,
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lucruri importante in legatura cu natura umana,
03:27
that we don't always want the same thing.
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ca de exemplu faptul ca nu toti dorim acelasi tip de lucruri.
03:29
And what's more, they felt that they should actually do things
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Si chiar mai mult, ei chiar simt nevoia sa faca acele lucruri
03:31
to help other people get what they wanted.
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cu care de fapt i-ar ajuta pe altii sa obtina ceea ce vor.
03:34
Even more remarkably though,
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Ceea ce este si mai remarcabil,
03:36
the fact that 15 month-olds didn't do this
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daca bebelusii de 15 luni nu fac acest lucru,
03:39
suggests that these 18 month-olds had learned
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si cei de 18 luni pot sa o faca,este ca cei de 18 luni
03:42
this deep, profound fact about human nature
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au invatat acest lucru despre natura umana
03:45
in the three months from when they were 15 months old.
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in cele trei luni de diferenta.
03:48
So children both know more and learn more
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Asa inseamna ca copiii pot sa gandeasca mult mai rapid si
03:50
than we ever would have thought.
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si sa invete mult mai multe decat noi credeam pana acum.
03:52
And this is just one of hundreds and hundreds of studies over the last 20 years
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Iar acesta este unul dintre sutele de studii si experimente facute in ultimii 20 de ani
03:56
that's actually demonstrated it.
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care au demonstrat acealsi lucru.
03:58
The question you might ask though is:
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Intrebarea care ati putea sa o faceti este totusi:
04:00
Why do children learn so much?
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De ce invata copiii atat de multe?
04:03
And how is it possible for them to learn so much
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Si, cum e posibil ca ei sa invete toate aceste lucruri
04:05
in such a short time?
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intr-un timp atat de scurt?
04:07
I mean, after all, if you look at babies superficially,
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Adica, vreau sa spun, bebelusii par destul de inutili
04:09
they seem pretty useless.
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mai ales daca te uiti la ei in mod superficial.
04:11
And actually in many ways, they're worse than useless,
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Iar in multe situatii sunt chiar mai rau decat inutili
04:14
because we have to put so much time and energy
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pentru ca este nevoie de mult timp si energie
04:16
into just keeping them alive.
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din partea noastra doar ca sa ii mentinem cu viata.
04:18
But if we turn to evolution
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Asa ca, daca ceri raspunsul evolutiei,
04:20
for an answer to this puzzle
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daca ceri raspunsul acestui puzzle,
04:22
of why we spend so much time
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de ce pierdem atata timp
04:24
taking care of useless babies,
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ingrijind bebelusi inutili
04:27
it turns out that there's actually an answer.
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exista de fapt acest raspuns.
04:30
If we look across many, many different species of animals,
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Daca ne uitam la multe, multe specii diferite de animale,
04:33
not just us primates,
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nu doar primate ca noi,
04:35
but also including other mammals, birds,
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ci si mamifere, pasari,
04:37
even marsupials
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chiar si marsupiale,
04:39
like kangaroos and wombats,
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ca de exemplu cangurii si ursul australian
04:41
it turns out that there's a relationship
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rezulta ca exista o legatura
04:43
between how long a childhood a species has
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intre durata copilariei a fiecarei specii
04:47
and how big their brains are compared to their bodies
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si cat de mare este creierul in comparatie cu corpul lor
04:51
and how smart and flexible they are.
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si cat de inteligenti si flexibili sunt.
04:53
And sort of the posterbirds for this idea are the birds up there.
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Si pentru a exemplifica aceasta idee haideti sa ne uitam la aceste pasari de aici.
04:56
On one side
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Pe de o parte
04:58
is a New Caledonian crow.
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avem cioara de Noua Caledonie.
05:00
And crows and other corvidae, ravens, rooks and so forth,
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Ciorile si alte pasari din familia Corvidelor, ca de exemplu corbii sau stancutele
05:03
are incredibly smart birds.
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sunt pasari extrem de inteligente.
05:05
They're as smart as chimpanzees in some respects.
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Din anumite puncte de vedere sunt la fel de inteligente ca si chimpanzeii.
05:08
And this is a bird on the cover of science
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Iar pasarea de aici a aparut pe coperta revistei Science
05:10
who's learned how to use a tool to get food.
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pentru ca a invatat sa utilizeze o unealta pentru a obtine mancarea.
05:13
On the other hand,
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Pe de alta parte,
05:15
we have our friend the domestic chicken.
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il avem pe prietenul nostru, puiul domestic.
05:17
And chickens and ducks and geese and turkeys
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Acesti pui, ca si ratele si gastele si curcanii
05:20
are basically as dumb as dumps.
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sunt mai prosti ca noaptea.
05:22
So they're very, very good at pecking for grain,
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Sunt foarte, foarte buni la ciugulit graunte
05:25
and they're not much good at doing anything else.
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dar practic nu sunt buni la nimic altceva.
05:28
Well it turns out that the babies,
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Si rezulta ca puii,
05:30
the New Caledonian crow babies, are fledglings.
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ma refer la puii de cioara de Noua Caledonie, sunt pasari inexperte.
05:32
They depend on their moms
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Depind in totalitate de mamele lor
05:34
to drop worms in their little open mouths
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ca sa le aduca viermi si sa ii introduca in ciocurile lor mici
05:37
for as long as two years,
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timp de vreo 2 ani,
05:39
which is a really long time in the life of a bird.
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perioada extrem de lunga in comparatie cu durata vietii unei astfel de pasari.
05:41
Whereas the chickens are actually mature
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Pe de alta parte, puii domestici se maturizeaza
05:43
within a couple of months.
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in cateva luni.
05:45
So childhood is the reason
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Ca urmare, copilaria este motivul pentru care
05:48
why the crows end up on the cover of Science
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pasari ca ciorile ajung pe coperta revistei Science
05:50
and the chickens end up in the soup pot.
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in timp ce puii domestici termina in oala de ciorba.
05:52
There's something about that long childhood
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Exista ceva in legatura cu acea perioada lunga a copilariei
05:55
that seems to be connected
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care pare sa aiba legatura
05:57
to knowledge and learning.
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cu procesul de cunoastere si invatare.
05:59
Well what kind of explanation could we have for this?
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Deci, ce fel de explicatie am putea oferi la acest lucru?
06:02
Well some animals, like the chicken,
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Pai bine, anumite pasari, ca de exemplu puiul domestic,
06:05
seem to be beautifully suited
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par extraordinar de adaptate
06:07
to doing just one thing very well.
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la a face bine doar un singur lucru.
06:09
So they seem to be beautifully suited
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Par extrem de adaptate
06:12
to pecking grain in one environment.
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pentru a ciuguli graunte intr-un mediu concret.
06:14
Other creatures, like the crows,
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In timp ce alte vietati, ca de exemplu ciorile,
06:16
aren't very good at doing anything in particular,
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nu sunt foarte bune la a face un singur lucru in concret
06:18
but they're extremely good
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dar sunt extrem de bune
06:20
at learning about laws of different environments.
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cand vine vorba sa invete despre legile care guverneaza medii diverse.
06:22
And of course, we human beings
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Si bineinteles ca noi, fiintele umane
06:24
are way out on the end of the distribution like the crows.
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sunt mult mai buni decat ciorile.
06:27
We have bigger brains relative to our bodies
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Dimensiunea creierului nostru este mai mare decat ar trebui sa fie in relatie cu dimensiunea corpul nostru
06:29
by far than any other animal.
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si intrecem in asta orice alta specie.
06:31
We're smarter, we're more flexible,
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Sunt mai isteti, mai flexibili,
06:33
we can learn more,
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invatam mai mult
06:35
we survive in more different environments,
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putem sa supravietuim in mult mai multe tipuri de mediu inconjurator,
06:37
we migrated to cover the world and even go to outer space.
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migram pe cuprinsul intregii planete si chiar si in spatiul extraterestru.
06:40
And our babies and children are dependent on us
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Iar bebelusii si copiii nostri depind de noi
06:43
for much longer than the babies of any other species.
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mult mai mult timp decat descendentii oricarei alte specii.
06:46
My son is 23.
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Fiul meu are 23 de ani.
06:48
(Laughter)
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(Rasete)
06:50
And at least until they're 23,
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Si, cel putin pana la varsta de 23 de ani,
06:52
we're still popping those worms
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noi, ca parinti, continuam sa le aducem mura-n-gura
06:54
into those little open mouths.
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tot ceea ce au nevoie.
06:57
All right, why would we see this correlation?
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Bun, si de ce ne-ar interesa aceasta corelatie?
07:00
Well an idea is that that strategy, that learning strategy,
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Pe de o parte observam ca aceasta strategie, aceasta strategie aplicata procesului de invatare,
07:04
is an extremely powerful, great strategy for getting on in the world,
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este o strategie extrem de puternica si de buna care ne ajuta sa mergem inainte
07:07
but it has one big disadvantage.
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dar care are un mare dezavantaj.
07:09
And that one big disadvantage
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Iar acest mare dezavantaj
07:11
is that, until you actually do all that learning,
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este ca, pana cand ajungi sa asimilezi tot ceea ce ai nevoie,
07:14
you're going to be helpless.
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ramai neajutorat.
07:16
So you don't want to have the mastodon charging at you
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Asa ca, in momentul in care, sa zicem, iti apare in fata un mastodont
07:19
and be saying to yourself,
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si tu incepi sa-ti spui:
07:21
"A slingshot or maybe a spear might work. Which would actually be better?"
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"Hm...o prastie sau o sulita cred ca mi-ar fi de folos. Care ar fi mai potrivita?"
07:25
You want to know all that
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ti-ar conveni mult mai mult sa stii toate acele lucruri
07:27
before the mastodons actually show up.
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inainte ca mastodontul sa apara de-adevaratelea.
07:29
And the way the evolutions seems to have solved that problem
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Iar modalitatea pe care procesul evolutiv a gasit-o ca solutie la aceasta problema
07:32
is with a kind of division of labor.
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este diviziunea muncii.
07:34
So the idea is that we have this early period when we're completely protected.
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Ca urmare, ne bucuram de aceasta perioada timpurie in viata cand sunt pe deplin protejati.
07:37
We don't have to do anything. All we have to do is learn.
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Nu trebuie sa facem nimic. Tot ce trebuie sa facem este sa invatam.
07:40
And then as adults,
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Ca apoi, adulti
07:42
we can take all those things that we learned when we were babies and children
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sa ne folosim de toate acele lucruri pe care le-am invatat cand eram bebelusi si copii mici
07:45
and actually put them to work to do things out there in the world.
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si sa le punem de fapt la treaba ca sa ne facem treaba.
07:48
So one way of thinking about it
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Asa ca un fel de a privi aceste lucruri
07:50
is that babies and young children
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este sa-i vezi pe bebelusi si pe copiii mici
07:52
are like the research and development division of the human species.
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ca un departament de cercetare si dezvoltare in cadrul speciei umane.
07:55
So they're the protected blue sky guys
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Asa ca ei sunt tipii care au birou sus, la ultimul etaj al companiei
07:58
who just have to go out and learn and have good ideas,
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si care doar trebuie sa se ocupe cu invatatul si cu aducerea unor idei bune
08:00
and we're production and marketing.
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in timp ce noi suntem departamentul de productie si marketing.
08:02
We have to take all those ideas
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Noi trebuie sa luam toate acele idei
08:04
that we learned when we were children
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la care ne-am gandit cand eram copii
08:06
and actually put them to use.
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si sa le punem in practica.
08:08
Another way of thinking about it
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Un alt mod de a ne gandi la acest lucru
08:10
is instead of thinking of babies and children
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are fi ca, in loc sa-i consideram pe bebelusi si copiii mici
08:12
as being like defective grownups,
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ca fiind niste adulti defectuosi,
08:14
we should think about them
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sa-i consideram
08:16
as being a different developmental stage of the same species --
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o etapa aparte de dezvoltare in cadrul aceleasi specii,
08:18
kind of like caterpillars and butterflies --
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ceva de genul omizi contra fluturi,
08:21
except that they're actually the brilliant butterflies
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doar ca fluturii in acest caz
08:23
who are flitting around the garden and exploring,
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sunt ei, si sunt cei care investigeaza in sus si in jos
08:26
and we're the caterpillars
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iar noi suntem omizile
08:28
who are inching along our narrow, grownup, adult path.
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niste omizi care ne aliniam din ce in ce mai mult pe cararea ingusta a maturitatii.
08:31
If this is true, if these babies are designed to learn --
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Daca acest lucru se dovedeste adevarat, ca acesti bebelusi sunt programati sa invete-
08:34
and this evolutionary story would say children are for learning,
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si procesul evolutiv ne spune ca acesti copii sunt aici ca sa invete,
08:37
that's what they're for --
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asta este motivul existentei lor, ca sa invete-
08:39
we might expect
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atunci ar trebui sa ne asteptam la faptul ca
08:41
that they would have really powerful learning mechanisms.
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ei poseda niste mecanisme de invatare extrem de puternice.
08:43
And in fact, the baby's brain
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De fapt, creierul bebelusilor
08:46
seems to be the most powerful learning computer
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pare cel mai puternic calculator
08:48
on the planet.
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de pe planeta.
08:50
But real computers are actually getting to be a lot better.
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Desi calulatoarele de-adevarat se vor imbunatati din ce in ce mai mult.
08:53
And there's been a revolution
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Si suntem martorii unei revolutii
08:55
in our understanding of machine learning recently.
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in ceea ce priveste intelegerea procesului prin care o masinarie invata.
08:57
And it all depends on the ideas of this guy,
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Si totul a inceput cu ideile acestui tip de aici
09:00
the Reverend Thomas Bayes,
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reverendul Thomas Bayes,
09:02
who was a statistician and mathematician in the 18th century.
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statisticianul si matematicul secolului XVIII.
09:05
And essentially what Bayes did
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Ceea ce practic ofera Bayes
09:08
was to provide a mathematical way
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este un model matematic
09:10
using probability theory
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in care se utilizeaza teoria probabilitatilor
09:12
to characterize, describe,
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pentru a caracteriza si descrie
09:14
the way that scientists find out about the world.
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maniera in care oamenii de stiinta fac descoperiri despre ceea ce ne inconjoara.
09:16
So what scientists do
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Asadar, ceea ce oamenii de stiinta fac
09:18
is they have a hypothesis that they think might be likely to start with.
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este sa emita o ipoteza cu care ei considera corespunzator sa inceapa un proiect.
09:21
They go out and test it against the evidence.
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Dupa care incep sa o testeze si sa aduca probe pro si contra ei.
09:23
The evidence makes them change that hypothesis.
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Aceste probe ii vor obliga sa modifice ipoteza.
09:25
Then they test that new hypothesis
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Dupa care se testeaza noua ipoteza din nou,
09:27
and so on and so forth.
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si asa mai departe.
09:29
And what Bayes showed was a mathematical way that you could do that.
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Iar ceea ce Bayes ne-a lasat este un model matematic de a face toate aceste lucruri.
09:32
And that mathematics is at the core
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Si faptul ca matematica este cea care se afla la baza
09:34
of the best machine learning programs that we have now.
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celor mai potente programe de invatare pe care masinile noastre le au in momentul de fata.
09:36
And some 10 years ago,
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Si de acum 10 ani
09:38
I suggested that babies might be doing the same thing.
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eu insinuez ca si bebelusii ar putea fi capabili sa faca acelasi lucru.
09:42
So if you want to know what's going on
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Asa ca, daca doriti sa aflati ce se ascunde
09:44
underneath those beautiful brown eyes,
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in spatele acelor frumosi ochi caprui
09:46
I think it actually looks something like this.
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cred ca aceasta imagine va poate servi.
09:48
This is Reverend Bayes's notebook.
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Este caietul de notite al reverendului Bayes.
09:50
So I think those babies are actually making complicated calculations
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Pentru ca eu cred ca acei bebelusi sunt in stare sa faca calcule complicate
09:53
with conditional probabilities that they're revising
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care implica probabilitati, probabilitati pe care le revizeaza
09:56
to figure out how the world works.
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si le utilizeaza ca sa-si dea seama cum functioneaza lumea din jor.
09:58
All right, now that might seem like an even taller order to actually demonstrate.
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Bun, acum ajungem la un lucru care aparent, este si mai dificil de demonstrat.
10:02
Because after all, if you ask even grownups about statistics,
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Pentru ca, la urma urmelor, daca pui intrebari de statistica oricarui adult
10:04
they look extremely stupid.
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toti par extrem de stupizi cu raspunsurile lor.
10:06
How could it be that children are doing statistics?
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Cum este posibil sa avem copii facam statistica?
10:09
So to test this we used a machine that we have
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Pentru a testa aceasta ipoteza, am folosit o masina
10:11
called the Blicket Detector.
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numita detectorul Blicket.
10:13
This is a box that lights up and plays music
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Acesta este o cutie care se aprinde si din care se aude muzica
10:15
when you put some things on it and not others.
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cand pui deasupra ei niste obiecte in concret.
10:18
And using this very simple machine,
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Folosind aceasta masina simpla
10:20
my lab and others have done dozens of studies
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colegii mei de laborator, cat si alti cercetatori, au facut zeci de exerimente
10:22
showing just how good babies are
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demonstrand cat de buni sunt bebelusii
10:24
at learning about the world.
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cand vine vorba dea invata despre lumea inconjuratoare.
10:26
Let me mention just one
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Permiteti-mi sa va arat doar unul dintre aceste experimente
10:28
that we did with Tumar Kushner, my student.
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pe care l-a facut un stundent de-al meu, Tumar Kushner.
10:30
If I showed you this detector,
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Daca va arat acest detector
10:32
you would be likely to think to begin with
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este destul de probabil ca primul lucru la care v-ati gandi
10:34
that the way to make the detector go
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este ca modul de functionare al detectorului
10:36
would be to put a block on top of the detector.
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este cu ajutorul unui bloc care se aseaza deasupra.
10:39
But actually, this detector
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In schimb, acest detector
10:41
works in a bit of a strange way.
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functioneaza putin diferit.
10:43
Because if you wave a block over the top of the detector,
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Daca miscati un bloc pe deasupra acestui detector
10:46
something you wouldn't ever think of to begin with,
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se va intampla ceva la care poate nu v-ati gandi,
10:49
the detector will actually activate two out of three times.
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si anume ca detectorul se va activa de 2 ori intr-un grup de 3 miscari;
10:52
Whereas, if you do the likely thing, put the block on the detector,
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in timp ce, daca pui un bloc pe detector
10:55
it will only activate two out of six times.
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se va activa de 2 ori intr-un grup de 6 miscari.
10:59
So the unlikely hypothesis
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Ca urmare, la posibilitatea cea mai putin probabila
11:01
actually has stronger evidence.
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este cea care ofera de fapt o proba mai puternica.
11:03
It looks as if the waving
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In aparenta, miscarea pe deasupra detectorului
11:05
is a more effective strategy than the other strategy.
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este o strategie mai efectiva decat oricare alta.
11:07
So we did just this; we gave four year-olds this pattern of evidence,
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Asa ca asta este ceea ce am facut; le-am oferit unor copii de 4 ani acest model de functionare
11:10
and we just asked them to make it go.
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si le-am cerut sa faca detectorul sa functioneze.
11:12
And sure enough, the four year-olds used the evidence
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Si cum era de asteptat, copiii de 4 ani au utilizat acest model
11:15
to wave the object on top of the detector.
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si au miscat obiectele pe deasupra detectorului.
11:18
Now there are two things that are really interesting about this.
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Aici avem doua lucruri care sunt foarte interesante.
11:21
The first one is, again, remember, these are four year-olds.
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Primul este ca, va rog sa retineti, acesti copii au 4 ani.
11:24
They're just learning how to count.
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Sunt aceiasi care tocmai invata sa numere.
11:26
But unconsciously,
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Dar, intr-un mod inconstient
11:28
they're doing these quite complicated calculations
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sunt capabili sa faca calcule destul de complicate
11:30
that will give them a conditional probability measure.
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care ii capaciteaza cu o masura a probabilitatii conditionale.
11:33
And the other interesting thing
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Iar cel de-al doilea lucru interesant este ca
11:35
is that they're using that evidence
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ei se folosesc de aceste experimente
11:37
to get to an idea, get to a hypothesis about the world,
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pentru a-si face o idee, pentru a crea o ipoteza despre lumea din jurul lor
11:40
that seems very unlikely to begin with.
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idee care in alte conditii ar fi dificil sa o aiba.
11:43
And in studies we've just been doing in my lab, similar studies,
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Iar in studii facute la mine in laborator, studii similare celui de mai sus,
11:46
we've show that four year-olds are actually better
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am putut sa demonstram ca, de fapt, copiii de 4 ani sunt mult mai buni
11:48
at finding out an unlikely hypothesis
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la a gasi o solutie la o ipoteza improbabila
11:51
than adults are when we give them exactly the same task.
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in comparatie cu adultii carora li se da aceasi misiune.
11:54
So in these circumstances,
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Ca urmare, in aceste conditii
11:56
the children are using statistics to find out about the world,
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copiii folosesc statistica pentru a scoate concluzii despre ceea ce ii inconjoara
11:59
but after all, scientists also do experiments,
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exact ca si oamenii de stiinta care fac experimente
12:02
and we wanted to see if children are doing experiments.
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si care doresc sa vada daca copiii fac experimente.
12:05
When children do experiments we call it "getting into everything"
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Cand ei fac aceste experimente, consideram ca ei "se baga in tot"
12:08
or else "playing."
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sau "se joaca".
12:10
And there's been a bunch of interesting studies recently
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Si sunt o groaza de studii recente si interesante
12:13
that have shown this playing around
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care demonstreaza ca aceasta joaca
12:16
is really a kind of experimental research program.
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este de fapt un fel de program experimental de cercetare.
12:18
Here's one from Cristine Legare's lab.
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Aici va prezint unul din laboratorul Cristinei Legare.
12:21
What Cristine did was use our Blicket Detectors.
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Cristina a utilizat detectoarele Blicket
12:24
And what she did was show children
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si le-a aratat copiilor
12:26
that yellow ones made it go and red ones didn't,
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cum cele galbene se pun miscare, in timp ce cele rosii nu functioneaza
12:28
and then she showed them an anomaly.
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dupa care le-a aratat o anomalie.
12:31
And what you'll see
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Si ceea ce veti vedea
12:33
is that this little boy will go through five hypotheses
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este un copil care va prezenta 5 ipoteze
12:36
in the space of two minutes.
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pe parcursul unor 2 minute.
12:39
(Video) Boy: How about this?
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Baietelul: Si asa?
12:43
Same as the other side.
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La fel ca in partea cealalta.
12:46
Alison Gopnik: Okay, so his first hypothesis has just been falsified.
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Alison: OK, prima ipoteza a fost expusa.
12:55
(Laughter)
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(Rasete)
12:57
Boy: This one lighted up, and this one nothing.
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Baietelul: Asta se aprinde, dar asta nu face nimic.
13:00
AG: Okay, he's got his experimental notebook out.
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AG: OK, deci a venit cu caitelul de notite.
13:06
Boy: What's making this light up.
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Baietelul: Cum face sa se aprinda?
13:11
(Laughter)
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(Rasete)
13:20
I don't know.
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Nu stiu,
13:22
AG: Every scientist will recognize that expression of despair.
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AG:Oricare om de stiinta recunoaste aceasta fata de disperare.
13:26
(Laughter)
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(Rasete)
13:29
Boy: Oh, it's because this needs to be like this,
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Baitelul: Aaa, cred ca e pentru ca e nevoie sa se puna asa,
13:35
and this needs to be like this.
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si asta asa.
13:37
AG: Okay, hypothesis two.
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AG. OK, ipoteza numarul 2.
13:40
Boy: That's why.
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Baietelul: De asta.
13:42
Oh.
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Oh.
13:44
(Laughter)
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(Rasete)
13:49
AG: Now this is his next idea.
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AG:Acum va prezenta urmatoarea idee.
13:51
He told the experimenter to do this,
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I-a spus cercetatorului sa faca asta,
13:53
to try putting it out onto the other location.
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sa incerce sa o aseze in alt loc.
13:57
Not working either.
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Dar nici asa nu functioneaza.
14:02
Boy: Oh, because the light goes only to here,
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Baietelul: Aa, pentru ca lumina se aprinde doar aici
14:06
not here.
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si aici nu.
14:09
Oh, the bottom of this box
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Aa, prin fundul cutiei
14:12
has electricity in here,
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trece curent
14:14
but this doesn't have electricity.
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dar prin asta nu ai curent.
14:16
AG: Okay, that's a fourth hypothesis.
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AG: OK, a patra ipoteza.
14:18
Boy: It's lighting up.
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Baitetelul: Se aprinde.
14:20
So when you put four.
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Deci cand ai 4.
14:26
So you put four on this one to make it light up
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Deci pui 4 aici deasupra ca sa se aprinda
14:29
and two on this one to make it light up.
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si 2 pe astalalta ca sa se aprinda.
14:31
AG: Okay,there's his fifth hypothesis.
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AG: OK, deci a cincea ipoteza.
14:33
Now that is a particularly --
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Acest copil este deosebit
14:36
that is a particularly adorable and articulate little boy,
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un baietel deosebit de adorabil si coerent,
14:39
but what Cristine discovered is this is actually quite typical.
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dar Cristina a descoperit ca, de fapt, ai multi copii de genul acesta.
14:42
If you look at the way children play, when you ask them to explain something,
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Daca ii observi pe copii in timp ce se joaca, si le ceri sa-ti explice ceva
14:45
what they really do is do a series of experiments.
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ceea ce ei fac de fapt este sa initieze o serie de experimente.
14:48
This is actually pretty typical of four year-olds.
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Aceasta atitudine este destul de obisnuita intre copiii de 4 ani.
14:51
Well, what's it like to be this kind of creature?
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Deci, cum e sa fi o astfel de fiinta?
14:54
What's it like to be one of these brilliant butterflies
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Cum e sa fi unul din acesti fluturi extraordinari
14:57
who can test five hypotheses in two minutes?
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care emit 5 ipoteze in 2 minute?
15:00
Well, if you go back to those psychologists and philosophers,
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Daca ne intoarcem la psihologi si la filozofi
15:03
a lot of them have said
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vedem ca majoritatea au sustinut
15:05
that babies and young children were barely conscious
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ca bebelusii si copii mici sunt constienti intr-o foarte mica masura
15:07
if they were conscious at all.
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sau chiar deloc.
15:09
And I think just the opposite is true.
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Iar eu cred ca de fapt este exact invers.
15:11
I think babies and children are actually more conscious than we are as adults.
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Sunt convinsa ca bebelusii si copii mici sunt de fapt mult mai constienti decat adultii.
15:14
Now here's what we know about how adult consciousness works.
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Pentru ca asta este ceea ce stim despre felul in care functioneaza constiinta in adulti.
15:17
And adults' attention and consciousness
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Atentia si constiinta in adulti
15:19
look kind of like a spotlight.
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e ca un fel de punct luminos.
15:21
So what happens for adults
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Adultii decid,
15:23
is we decide that something's relevant or important,
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in cazul in care ceva este relevant sau important,
15:25
we should pay attention to it.
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ca ar trebui sa ii dam atentie.
15:27
Our consciousness of that thing that we're attending to
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Faptul ca suntem constienti de acel lucru caruia ii dam atentie
15:29
becomes extremely bright and vivid,
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se transforma intr-o zona extrem de luminoasa si vie
15:32
and everything else sort of goes dark.
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in timp ce restul se intuneca.
15:34
And we even know something about the way the brain does this.
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Si stim cate ceva despre cum creierul face toate aceste lucruri.
15:37
So what happens when we pay attention
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Deci, cand noi acordam atentie,
15:39
is that the prefrontal cortex, the sort of executive part of our brains,
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vorbim de cortexul prefrontal, care este un fel de parte executiva a creierului nostru,
15:42
sends a signal
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care trimite un semnal
15:44
that makes a little part of our brain much more flexible,
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si care ajuta o mica parte a creierului sa devina mult mai flexibila,
15:46
more plastic, better at learning,
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mai plastica, mai predispusa la a invata,
15:48
and shuts down activity
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in timp ce blocheaza
15:50
in all the rest of our brains.
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toata activitatea din restul creierului.
15:52
So we have a very focused, purpose-driven kind of attention.
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Ca urmare, dispunem de un fel de atentie foarte localizata pe motivele noastre.
15:56
If we look at babies and young children,
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Daca ne uitam la bebelusi si la copiii mici
15:58
we see something very different.
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vedem cu totul altceva.
16:00
I think babies and young children
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Cred ca bebelusii si copiii mici
16:02
seem to have more of a lantern of consciousness
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au mai degraba un evantai de constiinta
16:04
than a spotlight of consciousness.
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decat un punct fix al constiintei.
16:06
So babies and young children are very bad
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Ca urmare sunt foarte stangaci
16:09
at narrowing down to just one thing.
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cand vine vorba sa se concentreze asupra unui singur lucru.
16:12
But they're very good at taking in lots of information
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Dar sunt foarte buni la a folosi, in acelasi timp, o multime de informatii
16:15
from lots of different sources at once.
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luate dintr-o multime de surse diferente.
16:17
And if you actually look in their brains,
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Si daca ne uitam inauntru creierului lor
16:19
you see that they're flooded with these neurotransmitters
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se pot observa multimea neurotransmitatorilor,
16:22
that are really good at inducing learning and plasticity,
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-care au un cuvant de spus in procesul de inductie a plasticitatii si invatarii,-
16:24
and the inhibitory parts haven't come on yet.
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si lipsa inhibitorilor care inca nu exista.
16:27
So when we say that babies and young children
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Asa ca, atunci cand se spune ca bebelusii si copiii mici
16:29
are bad at paying attention,
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nu sunt atenti,
16:31
what we really mean is that they're bad at not paying attention.
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ceea ce vrem de fapt sa spunem este ca atentia lor nu este focalizata,
16:35
So they're bad at getting rid
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ca nu sunt capabili sa de descotoroseasca de
16:37
of all the interesting things that could tell them something
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toate acele lucruri interesante care ar putea sa insemne ceva pentru ei
16:39
and just looking at the thing that's important.
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si pur si simplu sa se concentreze doar la un lucru important in acel moment.
16:41
That's the kind of attention, the kind of consciousness,
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Acesta este tipul de atentie, tipul de constiinta
16:44
that we might expect
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pe care l-am astepta
16:46
from those butterflies who are designed to learn.
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de la acesti fluturasii care sunt programati sa invete.
16:48
Well if we want to think about a way
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Dar daca noi cautam o cale
16:50
of getting a taste of that kind of baby consciousness as adults,
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prin care sa experimentam, ca adulti, constiinta copiiilor mici,
16:54
I think the best thing is think about cases
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cred ca cel mai bun lucru ar fi
16:56
where we're put in a new situation that we've never been in before --
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sa ne imaginam in situatii noi, in care nu ne-am mai aflat pana atunci,
16:59
when we fall in love with someone new,
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ca de exemplu ca atunci cand ne indragostim de cineva necunoscut
17:01
or when we're in a new city for the first time.
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sau cand ne aflam intr-un oras nou pentru prima data.
17:04
And what happens then is not that our consciousness contracts,
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Pentru ca, in astfel de situatii, constiinta noastra nu se contracta,
17:06
it expands,
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se dilata,
17:08
so that those three days in Paris
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de aceea acele 3 zile in Paris
17:10
seem to be more full of consciousness and experience
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par sa fie mai pline de viata si experiente
17:12
than all the months of being
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ca toate lunile in care
17:14
a walking, talking, faculty meeting-attending zombie back home.
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eram niste zombi care se duc la facultate, vorbesc, participa la reuniuni si se intorc acasa.
17:18
And by the way, that coffee,
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Si apropo, cafeaua aia,
17:20
that wonderful coffee you've been drinking downstairs,
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cafeaua extraordinar de buna pe care ati baut-o jos in hol
17:22
actually mimics the effect
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de fapt imita efectul
17:24
of those baby neurotransmitters.
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acelor neurotransmitatori din creierul bebelusilor.
17:26
So what's it like to be a baby?
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Deci, cum e sa fi un bebelus?
17:28
It's like being in love
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E ca atunci cand esti indragostit,
17:30
in Paris for the first time
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in Paris, pentru prima data,
17:32
after you've had three double-espressos.
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dupa ce-ai baut trei cafele mari.
17:34
(Laughter)
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(Rasete)
17:37
That's a fantastic way to be,
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Este un fel fantastic de a exista
17:39
but it does tend to leave you waking up crying at three o'clock in the morning.
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care, intr-adevar, tinde sa te faca sa te trezesti plangand la trei dimineata.
17:43
(Laughter)
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(Rasete)
17:46
Now it's good to be a grownup.
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E bine sa fi si adult.
17:48
I don't want to say too much about how wonderful babies are.
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Nu vreau sa fac prea multa reclama de cat e de bine sa fii bebelus.
17:50
It's good to be a grownup.
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E bine sa fi adult.
17:52
We can do things like tie our shoelaces and cross the street by ourselves.
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Putem sa facem singuri chestii de genul: sa ne facem funda la siret si sa trecem singuri strada.
17:55
And it makes sense that we put a lot of effort
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Si e logic ca investim o groaza de efort
17:57
into making babies think like adults do.
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ca sa-i facem pe bebelusi sa gandeasca ca si adultii.
18:01
But if what we want is to be like those butterflies,
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Dar, daca dorim sa fim ca acesti fluturasi,
18:04
to have open-mindedness, open learning,
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sa fim deschisi la minte, deschisi la a invata,
18:07
imagination, creativity, innovation,
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sa avem imaginatie, sa fim creativi si inovatori
18:09
maybe at least some of the time
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probabil, cel putin din cand in cand,
18:11
we should be getting the adults
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ar trebui sa fim acei adulti
18:13
to start thinking more like children.
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care sa inceapa sa gandeasca la fel ca si copilasii.
18:15
(Applause)
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(Aplauze)
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