Dr. Matt Walker

The electrical stimulation is probably the most well rendered of all of those four.

In part because we started there, and here it's not the royal we.

We have done a lot of work on this, and I can tell you a little bit about a company emerging from that.

But when you're trying to manipulate the human brain, the principal currency in which the brain communicates is electricity.

Now, there are lots of things that help it do that, such as chemicals, but the principal language and...

verbiage of the brain is electricity.

So if you're going to manipulate the brain, why don't you speak in its currency of electricity?

So we and others have developed a method based on something called direct current brain stimulation,

and specifically something called transcranial direct current stimulation.

And I'll unpack that.

Trans meaning movement.

So if you've heard of transport, it's about moving things from one port to another.

Transatlantic, moving across the Atlantic.

So here, the start of it is moving.

You're moving something from one place to the next.

Transcranial means through your skull.

So we're moving something through your skull.

Transcranial direct current is the type of voltage or the type of electrical impulse that we're putting in.

It could be alternating current.

or it could be direct current, and early methods and those we use have been direct current.