kevin pelphrey, his work uses brain imaging techniques to understand social perception and cognition. he is an associate professor of child psychiatry at yale university. giacomo rizzolatti let's. in 1996 he discovered cells known as miro neurons. they are thought to play many crucial roles in social interbr section. he's a professor. gerald fischbach, victims robbed of their social skill. he's the director of autism research at the simons foundation. and also my good friend and cohost, dr. eric kandel. he is a noble laureate as you know, a professor at columbia university and a howard hughes medical investigator and he has been a good friend to this broadcast. we could not do it without him. he has been the person who h linked our curiosity to an extraordinary amount of research and achievement understanding the brain. so i begin with this question in this episode. social brain. tell me what we mean by that. >> as you pointed out, very nicely in your introduction, we are immensely social beings. we use our social behavior to find a partner, to build a many family, to build a communit