So, yeah. Communication. It's not always easy.

You're crazy.

You're crazy.

You're crazy

(slapping)

But no matter where we come from or the languages we speak, by using these, we can still connect with other humans.

And now maybe with them too.

There are so many purposes of facial expressions.

I'm David Matsumoto. I'm a Professor of Psychology at San Francisco State University, and I'm also director of Humintell.

The face is one of the most complex signal systems we have in the body.

And it serves many purposes.

For example, when we wrinkle our nose in disgust like this,

not only is it communicating something to you who can perceive my expression,

what is also doing is clamping down a little bit on those nasal passages.

It's preventing things from coming into my body, through my nasal passage.

Facial expressions also communicate to the people around us.

One of the biggest advocates for this theory — Charles Darwin.

Darwin posited that all humans have emotions.

It allows us to act immediately with minimal conscious thinking or awareness.

And then on top of that, we add these expressions so that we could communicate that reaction to others as well and that helped the group to survive.

Because of this, Darwin believed our expressions were universal.

So in psychology today, there is widespread agreement that seven facial expressions of emotion are universally recognized all around the world,

regardless of race, color, creed, nationality, gender, any demographic that exists.

They are: anger, contempt, disgust, fear, happiness, sadness, and surprise.

So this means as humans, we can talk to each other, even without words.

But can facial expressions help us connect with humanlike technology?

So the robot is a way to understand human self, for me.

By creating the very humanlike robot, I believe that we can get some knowledge about the humans.

My name is Hiroshi Ishiguro. I'm a roboticist.

What I could learn through the robots (are) so many things, right?

We are trying to develop interacting robots with humans.

And we're studying the how the human can interact with the robots.

So in order to develop that kind of a robot, the first facial expressions, and the gazing directions, gazing control of the robot is so very important.

So robot needs to represent the emotions and intelligence in many ways.

We have totally different cultures between (the) United States and Japan, right? But I know that we understand (the) emotional expression.

There is no doubt emotional facial expressions is a very important way of communication.

So therefore, the facial expression is very important for android and for having the communication with human.

Hello, My name is Erica.

Meet Erica.

I think Erica is the most humanlike android in the world.

Erica can have a kind of a natural conversation with the visitors.

Maybe the five or ten minutes.

We are implementing the, maybe just major the facial expression with Erica.

Happy,

It's all very exciting

Angry.

I'm done talking to you, please don't come speak with me again.

And it's sad and depressed.

(foreign language)

So android can have their communications by exchanging the facial expressions even if android doesn't understand the language.

There are so many great applications for these robots.

Whether it's helping the elderly, guiding tourists or even for entertainment.

It's all very exciting.

Oh, sorry about that.

I got a little carried away.

By designing robots to have facial expressions, humans could more easily connect with them and incorporate them into our lives.

It's just really interesting because we use our faces to reference many different mental states.

By expressing the facial expression, even if we don't understand our language to each other, we can share some information.

And because of that facial expressions of emotion are the closest thing we have to a universal language, they allow us to share emotions with each other.

They allow us to share the time when we laugh together or cry together.

If there's anything out there, they're the single most important vehicle that we have that can bring us all together.