Violent activity. pat deigan is a clinical psychologist and innovator and diagnosed with skin schizophrenia and designed an experiment. for three quarters of an hour, you listen to voices trying to do everything from puzzles to simply interacting with people on the street. here's my experience and a warning the find some of the voices unsettling. >> going to put the earphones in and do a series of tests. okay. so i'm now hearing sort of whispers and voices in my head and it's number puzzles. >> listen. >> you suck and they know it! can't you get this right? >> okay. so i did this test for thre...