I swear I've read about it in one of the books I had but I recently did a house cleaning of my Kindle collection and now I can't find it. But it had to do with

I swear I've read about it in one of the books I had but I recently did a house cleaning of my Kindle collection and now I can't find it. But it had to do with shifting brain activity to the right hemisphere when watching the box - the left side is responsible for logic. So.....