You aren't at the mercy of your emotions -- your brain creates them

My research lab sits about a mile

from where several bombs exploded

during the Boston Marathon in 2013.

The surviving bomber,
Dzhokhar Tsarnaev of Chechnya,

was tried, convicted,
and sentenced to death.

Now, when a jury has to make the decision

between life in prison
and the death penalty,

they base their decision largely
on whether or not the defendant

feels remorseful for his actions.

Tsarnaev spoke words of apology,

but when jurors looked at his face,

all they saw was a stone-faced stare.

Now, Tsarnaev is guilty,

there's no doubt about that.

He murdered and maimed innocent people,

and I'm not here to debate that.

My heart goes out
to all the people who suffered.

But as a scientist, I have to tell you

that jurors do not
and cannot detect remorse

or any other emotion in anybody ever.

Neither can I, and neither can you,

and that's because emotions
are not what we think they are.

They are not universally
expressed and recognized.

They are not hardwired brain reactions

that are uncontrollable.

We have misunderstood
the nature of emotion

for a very long time,

and understanding what emotions really are
have important consequences for all of us.

I have studied emotions as a scientist
for the past 25 years,

and in my lab, we have probed human faces
by measuring electrical signals

that cause your facial muscles to contract
to make facial expressions.

We have scrutinized
the human body in emotion.

We have analyzed hundreds
of physiology studies

involving thousands of test subjects.

We've scanned hundreds of brains,

and examined every
brain imaging study on emotion

that has been published
in the past 20 years.

And the results of all of this research
is overwhelmingly consistent.

It may feel to you

like your emotions are hardwired

and they just trigger and happen to you,

but they don't.

You might believe that your brain
is prewired with emotion circuits,

you know, that you're born
with emotion circuits, but you're not.

In fact, none of us in this room
have emotion circuits in our brain.

In fact, no brain on this planet
contains emotion circuits.

So what are emotions really?

Well, strap on your seatbelt,

because emotions are guesses.

They are guesses that your brain
constructs in the moment

where billions of brain cells
are working together,

and you have more control
over those guesses

than you might imagine that you do.

Now, if that sounds preposterous to you,
or, you know, kind of crazy,

I'm right there with you, because frankly,
if I hadn't seen the evidence for myself,

decades of evidence for myself,

I am fairly sure that I
wouldn't believe it either.

But the bottom line is that emotions
are not built into your brain at birth.

They are just built.

To see what I mean, have a look at this.

Right now, your brain

is working like crazy.

Your neurons are firing like mad
trying to make meaning out of this

so that you see something
other than black and white blobs.

Your brain is sifting
through a lifetime of experience,

making thousands of guesses
at the same time,

weighing the probabilities,

trying to answer the question,

"What is this most like?"

not "What is it?"

but "What is this most like
in my past experience?"

And this is all happening
in the blink of an eye.

Now if your brain is still struggling
to find a good match

and you still see black and white blobs,

then you are in a state
called "experiential blindness,"

and I am going to cure you
of your blindness.

This is my favorite part.
Are you ready to be cured?

(Cheers)

All right. Here we go.

(Gasps)

All right.

So now many of you see a snake,

and why is that?

Because as your brain is sifting
through your past experience,

there is new knowledge there,

the knowledge that came
from the photograph.

And what's really cool is that

that knowledge which you
just acquired moments ago

is changing how you experience
these blobs right now.

So your brain is constructing
the image of a snake

where there is no snake,

and this kind of a hallucination

is what neuroscientists like me
call "predictions."

Predictions are basically
the way your brain works.

It's business as usual for your brain.

Predictions are the basis
of every experience that you have.

They are the basis
of every action that you take.

In fact, predictions are what allow you
to understand the words that I'm speaking

as they come out of my --

Audience: Mouth.
Lisa Feldman Barrett: Mouth. Exactly.

Predictions are primal, right?

They help us to make sense
of the world in a quick and efficient way.

So your brain

does not react to the world.

Using past experience,

your brain predicts and constructs

your experience of the world.

The way that we see emotions in others
are deeply rooted in predictions. Right?

So to us, it feels like
we just look at someone's face

and we just read the emotion
that's there in their facial expressions

the way that we would read
words on a page.

But actually, under the hood,

your brain is predicting.

It's using past experience
based on similar situations

to try to make meaning.

This time, you're not
making meaning of blobs,

you're making meaning of facial movements

like the curl of a lip
or the raise of an eyebrow.

And that stone-faced stare?

Well that might be someone
who is a remorseless killer,

but a stone-faced stare might also mean

that someone is stoically
accepting defeat,

which is in fact what Chechen culture
prescribes for someone

in Dzhokhar Tsarnaev's situation.

So the lesson here

is that emotions that you seem
to detect in other people

actually come in part
from what's inside your own head,

and this is true in the courtroom,

but it's also true in the classroom,

in the bedroom,

and in the boardroom.

And so here's my concern:

tech companies which shall
remain nameless --

well, maybe not.

You know, Google, Facebook

(Laughter)

are spending millions of research dollars

to build emotion detection systems,

and they are fundamentally
asking the wrong question

because they're trying to detect
emotions in the face and the body,

but emotions aren't in your face and body.

Physical movements have no
intrinsic emotional meaning.

We have to make them meaningful.

A human or something else
has to connect them to the context,

and that makes them meaningful.

That's how we know

that, you know, a smile might mean sadness

and a cry might mean happiness

and a stoic, still face might mean

that you are angrily plotting
the demise of your enemy.

Now, if I haven't already
gone out on a limb,

I'll just edge out on that limb
a little further and tell you

that the way that you
experience your own emotion

is exactly the same process.

Your brain is basically
making predictions, guesses,

that it's constructing in the moment

with billions of neurons working together.

Now your brain does come
pre-wired to make some feelings,

simple feelings that come
from the physiology of your body.

So when you're born, you can make feelings

like calmness and agitation,

excitement, comfort, discomfort.

But these simple feelings
are not emotions.

They're actually with you
every waking moment of your life.

They are simple summaries
of what's going on inside your body,

kind of like a barometer.

But they have very little detail,

and you need that detail
to know what to do next.

What do you about these feelings?

And so how does your brain
give you that detail?

Well, that's what predictions are.

Predictions link
the sensations in your body

that give you these simple feelings

with what's going on
around you in the world

so that you know what to do.

And sometimes, those constructions

are emotions.

So for example, if you
were to walk into a bakery,

your brain might predict
that you will encounter

the delicious aroma of freshly baked
chocolate chip cookies.

I know my brain would predict

the delicious aroma of freshly baked
chocolate chip cookies.

And our brains might cause
our stomachs to churn a little bit,

to prepare for eating those cookies.

And if we are correct,

if in fact some cookies
have just come out of the oven,

then our brains will
have constructed hunger,

and we are prepared
to munch down those cookies

and digest them in a very efficient way,

meaning that we can eat a lot of them,

which would be a really good thing.

You guys are not laughing enough.
I'm totally serious.

(Laughter)

But here's the thing.

That churning stomach,

if it occurs in a different situation,

it can have a completely
different meaning.

So if your brain were to predict
a churning stomach

in, say, a hospital room

while you're waiting for test results,

then your brain will be constructing dread

or worry or anxiety,

and it might cause you to, maybe,

wring your hands

or take a deep breath or even cry.

Right? Same physical sensation,
same churning stomach,

different experience.

And so the lesson here

is that emotions which seem
to happen to you

are actually made by you.

You are not at the mercy
of mythical emotion circuits

which are buried deep inside
some ancient part of your brain.

You have more control over your emotions

than you think you do.

I don't mean that you can
just snap your fingers

and change how you feel the way
that you would change your clothes,

but your brain is wired

so that if you change the ingredients
that your brain uses to make emotion,

then you can transform
your emotional life.

So if you change those ingredients today,

you're basically teaching your brain
how to predict differently tomorrow,

and this is what I call

being the architect of your experience.

So here's an example.

All of us have had a nervous feeling
before a test, right?

But some people experience
crippling anxiety before a test.

They have test anxiety.

Based on past experiences of taking tests,

their brains predict
a hammering heartbeat,

sweaty hands,

so much so that they are unable
to actually take the test.

They don't perform well,

and sometimes they not only fail courses
but they actually might fail college.

But here's the thing:

a hammering heartbeat
is not necessarily anxiety.

It could be that your body
is preparing to do battle

and ace that test,

or, you know, give a talk

in front of hundreds of people
on a stage where you're being filmed.

(Laughter)

I'm serious.

And research shows that when students
learn to make determination, right,

this kind of energized determination
instead of anxiety,

they perform better on tests.

And that determination sees their brain
to predict differently in the future

so that they can get their butterflies
flying in formation.

And if they do that often enough,

they not only can pass a test

but it will be easer for them
to pass their courses,

and they might even finish college,

which has a huge impact
on their future earning potential.

So I call this emotional
intelligence in action.

Now you can cultivate
this emotional intelligence yourself

and use it in your everyday life.

So just, you know,

imagine waking up in the morning.

I'm sure you've had
this experience. I know I have.

You know, you wake up in the morning,
and as you're emerging into consciousness

you feel this horrible dread,

you know, this real wretchedness,

and immediately your mind starts to race.

Right? You start to think about
all the crap that you have to do at work

and you have that mountain of email

which you will never
dig yourself out of ever.

Right? And the phone calls
you have to return,

and that important meeting
that you have across town,

and you're going to have
to fight traffic to get there,

which means you're going
to be late picking your kids up,

and your dog is sick, and what
are you going to make for dinner?

And oh my God.

Right? What is wrong with your life?

What is wrong with my life?

(Laughter)

That mindracing is prediction.

Your brain is searching
to find an explanation

for those sensations in your body

that you experience as wretchedness,

just like you did with the blobby image.

So your brain is trying to explain
what caused those sensations

so that you know what to do about them.

But those sensations

might not be an indication
that anything is wrong with your life.

They might have a purely physical cause.

Maybe you're tired.

Maybe you didn't sleep enough.

Maybe you're hungry.

Maybe you're dehydrated.

The next time that you
feel intense distress,

ask yourself,

could this have a purely physical cause?

Is it possible that you can transform

emotional suffering
into just mere physical discomfort?

Now I am not suggesting to you

that you can just perform
a couple of Jedi mind tricks

and talk yourself out of being depressed

or anxious or any kind
of serious condition,

but I am telling you

that you have more control over
your emotions than you might imagine,

and that you have the capacity

to turn down the dial
on emotional suffering

and its consequences for your life

by learning how to construct
your experiences differently.

And all of us can do this

and with a little practice,
we can get really good at it,

you know, like driving.

At first, it takes a lot of effort,

but eventually it becomes
pretty automatic.

Now I don't know about you
but I find this to be

a really empowering and inspiring message,

and the fact that it's backed up
by decades of research

makes me also happy as a scientist.

But I have to also warn you
that it does come with some fine print,

because more control

also means more responsibility.

If you are not at the mercy
of mythical emotional circuits

which are buried deep
inside your brain somewhere

and which trigger automatically,

then who is responsible,

who is responsible when you behave badly?

You are,

not because you're culpable
for your emotions,

but because the actions
and the experiences that you make today

become your brain's
predictions for tomorrow.

Sometimes we are responsible for something

not because we're to blame

but because we're the only ones
who can change it.

Now responsibility is a big word.

It's so big in fact

that sometimes people feel the need
to resist the scientific evidence

that emotions are built and not built in.

The idea that we are responsible
for our own emotions

seems very hard to swallow.

But what I'm suggesting to you
is you don't have to choke on that idea.

You just take a deep breath,

maybe get yourself
a glass of water if you need to,

and embrace it.

Embrace that responsibility,
because it is the path

to a healthier body,

a more just and informed legal system,

and a more flexible
and potent emotional life.

Thank you.

(Applause)