I suppose that in RPG parlance, you could call this a Cap of Wisdom that adds a positive factor to your thinking prowess whenever you put it on. Research has shown that our brains register a mistake with a spike of negative voltage in the medial-front cortex, without any clear reason as of yet why that happens.
A pair of psychologists from Vanderbilt University in Nashville, Tennessee, namely Ph.D. candidate Robert Reinhart and assistant professor of psychology Geoffrey Woodman, have come up with this “thinking cap” that delivers a low-level current to the brain so that it can simulate this spike. They figured out that this spike has a role to play during the learning process, hence letting the brain learn from mistakes.
Test subjects showed that wearing this “thinking cap” saw them make fewer mistakes in tests, not to mention learn at a faster rate compared to the others who did not have the advantage of being jolted into action.