And other FM devices implanted in fingertips, on contacting a surface, will send a message back to the sensory cortex of the brain, so that the person feels a sense of touch.

You and I, we barely scratched the surface.

She had a little sensor at the end of her prosthesis that then she rubbed over different surfaces, and she could feel different textures of sandpaper, different grits, ribbon cable, as it pushed on her reinnervated hand skin.

The timing couldn't be better.

And these objects are visually identical, but when the avatar crosses the surface of these objects, they send an electrical message that is proportional to the microtactile texture of the object that goes back directly to the monkey's brain, informing the brain what it is the avatar is touching.

You feel nice.

I thought it was all graphics.

Now it turns out that animals can go anywhere.

This feels like silk.

Nicole

There's none of what is called the chemo head.

That red piece of brain tissue is your somatosensory cortex.

That was a nice touch.

What does it feel like?

Surface

In ways that, despite our resources, they can do it better than us.

When we slow it down 50 times we see how the leg is hitting that simulated debris.

When you touched the cockroach leg can you get the microphone for him?

The first is tactile sensations, things you feel in your skin.

But things are getting better.

Brilliance

Crand

Surface pattern speed

And I'll plot it there and it'll be a point on the surface.

You're removing the extraneous, you're removing the artificial.

Metallic

let's do, surface

I don't know what it is.

Well, if we're thinking in three dimensions, a surface is going to be a function of x and y.

plane, like you can kind of view the projection of the surface of the xy plane, or the shadow of the surface of the xy plane.

How do you feel after that victory?

Solid surface

We go in the tanks with the tuna we touch their naked skin it's pretty amazing.

It has two main components.

A frown may express anger or displeasure.

Surface pattern complexity

Welcome aboard, Nibs. You shall polish all wood surfaces.

When we did that, here's a new experiment that we did we put an animal and had it run this grass spider on a surface with 99 percent of the contact area removed.

Feeling underrated and unappreciated.

I could see that she liked that.

Let's take this side.

I felt the brush of her hand against me.

Transparent surface

You can walk around them.

And under the scanning electron microscope, you can see the surface there really quite different from the other surfaces we looked at.