Dr. Michael Kilgard

They may help.

experiences you have, and you learn to play violin, you did a lot of stuff.

And that richness of information, which we, since the early days of information theory, Claude Shannon, we call it bits.

How many bits of information is it providing?

If something is always on,

It can't be providing much information.

So it was a big thing.

It was called transcranial direct current stimulation, TDCS.

There was transcranial magnetic stimulation, TMS.

Each of these things had lots of great advantages.

But the total amount of information they were providing to the neurons was relatively small compared to listening to my voice.

My voice, if I write this down, you're going to see it's going to be megabytes.

I record...

20 minutes worth of me talking, it's going to take megabytes to write down all the vibrations if you want to hear my pitch intonation.

If you just write down the letters, it could be much smaller, but there's still a lot of information.

So I think that's the way I think about it is how much information is being provided is the key unit.

So if the thing is on all the time and not really feeding anything back, it's probably not helping much.

And that's why FDA decides not to regulate it.

It's not dangerous.

If you want to put a stimulator on that activates your stuff, you want to wear pressure point bands, you want to do copper, these things come, they go.