brain function. >> larry: cara, in an autopsy, do we discover anything about the brains of suicides? >> suicides? >> just last week there was a study, this kid an nfl player or something, that committed suicide and they found a lot of trauma in the surface of the brain. >> chronic encephalopathy. i studied a study a couple of years ago on suicide. the most human thoughtful part of the brain, in people who killed themselves, was really low. in activity. which means they didn't have a supervisor. and i always say, suicide is a permanent solution to a temporary problem. >> larry: do you study the brains of drug addicts? >> do i study the brains of drug addicts? >> larry: looked at the brains? >> i've looked at neuropsychological effects of people who use drugs. but generally in my research in the past it was with individuals who had sensory disabilities. blindness, deafness, paralysis,