now, the third part of the brain is the neocortex.d like this. (piano plays) you know, like those computer commercials you see on tv, you know, when the little chips are going. so those--so this is just showing how music can turn on and represent different parts of the brain. the problem is, many of us tend to let just one brain area dominate our lives. so for example, you may have a pathological overeater, who may unknowingly spend most of his time in the reptilian brain. okay, so remember that reptilian brain sounded like this. (piano plays) now, picture i'm chewing while i'm doing that. (piano plays) (laughter) another bag of chips. (piano plays) okay? it can get a real march rhythm going as you munch that food and you're not even thinking about it. instinctively trying to satiate the desire for that pleasure brought about by the sheer act of eating. and then you have the drama queen or king who dwells in that limbic system, immersed in a world of runaway emotions, negative or positive, and just loving it. so i'll do the positive o