Anil Seth: Your brain hallucinates your conscious reality
Anil Set (Anil Seth): Kako vaš mozak halucinira vašu svesnu stvarnost
How can the "inner universe" of consciousness be explained in terms of mere biology and physics? Anil Seth explores the brain basis of consciousness and self. Full bio
Double-click the English transcript below to play the video.
I ceased to exist.
prestao sam da postojim.
and my brain was filling with anesthetic.
a mozak mi se ispunjavao anesteticima.
of detachment and falling apart
drowsy and disoriented,
mamuran i dezorijentisan,
ili nespokojni jer ste prespavali,
or anxious about oversleeping,
of time having passed,
da je prošlo vreme,
anesthesia is very different.
pet minuta, pet sati,
for five minutes, five hours,
it's a modern kind of magic.
mysteries in science and philosophy.
tajni nauke i filozofije.
of many billions of neurons,
na milijarde neurona,
je sićušni biološki mehanizam,
right here and right now.
for each of us is all there is.
mental illness or pain.
joy and suffering,
užitak i patnju,
postaju brži i pametniji,
maybe not too far away,
možda ne tako daleko,
a sense of its own existence.
svest o sopstvenom postojanju.
for a conscious AI are pretty remote.
za svesnu VI prilično daleki.
my research is telling me
jer mi moje istraživanje govori
with pure intelligence
sa čistom inteligencijom,
as living and breathing organisms.
živih organizama koji dišu.
are very different things.
su veoma različite stvari.
but you probably do have to be alive.
ali verovatno jeste za preživljavanje.
of the world around us,
and because of our living bodies.
i zbog naših živih tela.
that we know nothing
give rise to consciousness.
the reach of science altogether.
van dometa nauke uopšte.
of scientific work in this area.
eksploziju naučnog rada u ovoj oblasti.
at the University of Sussex,
na Univerzitetu Soseks,
from all different disciplines
how consciousness happens
kako dolazi do svesnosti
come to think about life.
the property of being alive
da je svojstvo postojanja
by physics and chemistry --
more than just mechanism.
više od pukog mehanizma.
of living systems
reproduction, homeostasis --
razmnožavanja, homeostaze -
started to fade away,
je počela da bledi
any more magical solutions,
magična rešenja,
njena svojstva,
inside brains and bodies,
unutar mozgova i tela,
of what consciousness is
of consciousness try to explain?
da pokuša da objasni?
of consciousness in two different ways.
o svesnosti na dva različita načina.
of the world around us,
3D, fully immersive inner movie.
3D, potpuno opčinjavajući unutrašnji film.
of being you or being me.
kao vi ili kao ja.
we all cling to most tightly.
koga se najčvršće držimo.
of the world around us,
of the brain as a prediction engine.
mozga kao mašine za nagađanje.
šta se dešava u spoljnom svetu.
what's out there in the world.
There's no sound either.
is streams of electrical impulses
su bujice električnih impulsa
to things in the world,
sa stvarima u svetu,
figuring out what's there --
razumevanje šta postoji -
these sensory signals
ove senzorne signale
about the way the world is
o tome kakav je svet
o tome šta je uzrok tim signalima.
of what caused those signals.
of what's out there in the world.
toga šta se dešava u spoljnjem svetu.
of examples of all this.
nekoliko primera za ovo.
about it in a new way.
o njoj na nov način.
very different shades of gray, right?
kao različite nijanse sive, zar ne?
exactly the same shade.
of the image here
with a gray-colored bar,
sivo obojenom pregradom,
and join them up.
there's no difference at all.
uopšte nema razlike.
and it looks different.
i izgledaju različito.
is using its prior expectations
of the visual cortex
u tokove vizuelnog korteksa,
the appearance of a surface,
than it really is.
nego što zaista jeste.
mozak može da koristi nova predviđanja
the brain can use new predictions
and see if you can get anything.
nešto da razumete.
is a really terrible idea.
uistinu grozna ideja.
I'm just going to replay it.
Prosto ću ga pustiti iznova.
information coming into the brain
senzorna informacija koja stiže do mozga
najbolja pretpostavka vašeg mozga
is your brain's best guess
what you consciously hear.
basis of perception
on signals coming into the brain
od signala koji stižu u mozak
flowing in the opposite direction.
koja teku u suprotnom smeru.
perceive the world,
comes as much, if not more,
podjednako, ako ne i više, dolazi
još jedan primer percepcije
one more example of perception
virtual reality with image processing
virtuelnu stvarnost i obradu slika
prejakih perceptualnih predviđanja
of overly strong perceptual predictions
we've transformed the world --
smo izobličili svet -
an algorithm based on Google's Deep Dream
zasnovanog na Guglovom Deep Dream-u
of overly strong perceptual predictions.
preterano jakih perceptivnih predviđanja.
this is a very strange thing.
predictions are too strong,
suviše jaka,
like the kinds of hallucinations
na nekakve halucinacije
of uncontrolled perception,
nekontrolisane percepcije,
is also a kind of hallucination,
takođe neki vid halucinacije,
are being reigned in
hallucinating all the time,
da kad se složimo oko naših halucinacija,
about our hallucinations,
that your experience of being a self,
da vaše iskustvo sopstva,
generated by the brain.
koju proizvodi mozak.
kao veoma čudna zamisao, tačno?
mi možda mogu obmanuti oči,
might deceive my eyes,
about what it means to be me?
kod toga šta znači biti ja?
and so continuous
not to take it for granted.
we experience being a self.
na koje doživljavamo sebe.
of perceiving the world
of intending to do things
bavljenja stvarima
that happen in the world.
koje se dešavaju u svetu.
and distinctive person over time,
i karakteristična osoba u vremenu,
of memories and social interactions.
sećanja i društvenih interakcija.
and neurologists know very well,
znaju veoma dobro,
in which we experience being a self
na koje doživljavamo sebe
the basic background experience
iskustvo iz pozadine
fragile construction of the brain.
je krhka tvorevina mozga.
which just like all others,
koje baš kao sva druga,
the experience of being a body
toga da je telo
part of its body.
deo njegovog tela.
in neuroscience to illustrate this.
iz neuronauke koji ovo ilustruje.
eksperimenata iz neuronauke,
is placed in front of them.
je stavljena ispred nje.
stroked with a paintbrush
maze četkicom,
is in fact part of their body.
zapravo deo njihovog tela.
between seeing touch and feeling touch
između viđenja dodira i osećaja dodira
and is roughly where a hand should be,
i otprilike je gde bi ruka trebalo da bude
to make its best guess
da napravi najbolju pretpostavku
is in fact part of the body.
all kinds of clever things.
razne pametne stvari.
and startle responses,
i zapanjene reakcije,
has assimilated the fake hand.
srodio sa lažnom rukom.
of what our body is
o tome šta je naše telo
hallucination by the brain.
as objects in the world from the outside,
kao predmete iz spoljnjeg sveta,
of being a body from the inside.
iskustvo telesnosti.
coming from the inside of the body
koji stižu iz unutrašnjosti tela
about the state of the internal organs,
o stanju unutrašnjih organa,
what the blood pressure is like,
kakav je krvni pritisak,
which we call interoception,
koju nazivamo interopercepcijom,
of the internal state of the body --
unutrašnjeg stanja tela -
of the rubber hand illusion.
iluzije sa gumenom rukom.
a virtual reality version of their hand,
virtuelne stvarnosti njihove ruke,
with their heartbeat.
sa njihovim otkucajima srca.
sa njihovim otkucajima srca,
in time with their heartbeat,
that it's in fact part of their body.
da je to zapravo deo njihovog tela.
are deeply grounded
su duboko zasnovana
I want to draw your attention to,
da vam skrenem pažnju na nešto
from the inside are very different
iskustva tela veoma različita
the world seems full of objects --
čini se da je svet pun predmeta -
as an object from the outside.
kao spoljašnji predmet.
of the body from within,
delove utrobe kao predmete.
much at all unless they go wrong.
ukoliko ne krenu po zlu.
state of the body
within the tight bounds
unutar strogih ograničenja
to figure out what's there,
da shvati šta postoji,
as the causes of sensations.
to control and regulate things,
da kontroliše i reguliše stvari,
or how badly that control is going.
ili koliko loše se ta kontrola odvija.
of being a self,
mechanisms that keep us alive.
mehanizmima koji nas održavaju u životu.
all the way through,
that all of our conscious experiences,
da su sva naša svesna iskustva,
mechanisms of predictive perception,
predviđajuće percepcije,
drive to stay alive.
za preživljavanjem.
our living bodies.
našim živim telima.
o tome šta ima tu.
of what's out there.
comes from the inside out,
dolazi iz unutra ka spolja,
da se ovo odnosi na sva naša iskustva
that this applies to our experiences
depend critically on sensory signals
zavise suštinski od senzornih signala
are more about control and regulation
se više radi o kontroli i regulaciji
around us and ourselves within it --
sveta oko nas i nas u njemu -
of controlled hallucinations
kontrolisanih halucinacija
over millions of years of evolution
milionima godina evolucije
full of danger and opportunity.
punim opasnosti i šansi.
implications of all this.
sa tri implikacije o svemu ovome.
da pogrešno doživimo svet,
misperceive the world,
of prediction go wrong.
opportunities in psychiatry and neurology,
šanse u psihijatriji i neurologiji
get at the mechanisms
da se bavimo mehanizmima,
depression and schizophrenia.
cannot be reduced to or uploaded to
ne može da se svede ili učita
are shaped at all levels
oblikuju na svim nivoima
that keep us alive.
koji nas održavaju u životu.
is not going to make them sentient.
neće ih učiniti svesnim.
way of being conscious.
of possible consciousnesses.
prostoru mogućih svesti.
are unique to each of us,
su jedinstveni za svakog od nas,
in biological mechanisms
na biološkim mehanizmima
from Copernicus --
od Kopernika -
and not apart from the rest of nature.
od ostatka prirode.
ABOUT THE SPEAKER
Anil Seth - Cognitive neuroscientistHow can the "inner universe" of consciousness be explained in terms of mere biology and physics? Anil Seth explores the brain basis of consciousness and self.
Why you should listen
In his groundbreaking research, Anil Seth seeks to understand consciousness in health and in disease. As founding co-director of the University of Sussex’s Sackler Centre for Consciousness Science, his research bridges neuroscience, mathematics, artificial intelligence, computer science, psychology, philosophy and psychiatry. He has also worked extensively with playwrights, dancers and other artists to shape a truly humanistic view of consciousness and self.
Seth is the editor and co-author of the best-selling 30-Second Brain, a collection of brief and engaging neuroscience vignettes. His forthcoming book The Presence Chamber develops his unique theories of conscious selfhood within the rich historical context of the mind and brain sciences.
Follow Seth on Twitter at @anilkseth, and visit his website at anilseth.com and neurobanter.com. The Sackler Centre, at the University of Sussex, is at sussex.ac.uk/sackler. Seth's work is supported by the Dr. Mortimer and Theresa Sackler Foundation.
Anil Seth | Speaker | TED.com