Essentials: How to Focus to Change Your Brain

793.224 - 815.317 Andrew Huberman

You would come into the lab and you'd sit down at a table and they would record from or image your brain and look at the representation of your fingers, the digits as we call them. and there would be a spinning drum, literally like a stone drum in front of you or metal drum that had little bumps. Some of the bumps were spaced close together, some of them were spaced far apart.