like auriel peterson. tracking reactions to religious quotes and videos to find a biological connection to the feeling of spiritual bliss. >> techknow's resident neuroscientist, dr. crystal dilworth and i asked to get our heads examined. >> okay the next scan that we are going to do is some quotations. >> for me, the project had added resonance. >> i'm here at temple square in salt lake city, utah, i used to come here all the time as a child because i was raised mormon until i was 14-years-old and i'm interested to see how that up bringing may affect my brain scan. >> it took about two hours to do an analysis of our scans. >> both cara and crystal have perfectly beautiful brains. >> beautiful... but what does it really mean? it was time to compare my brain and crystal's against auriel peterson's. >> this is auriel's response. you are looking at here pictures of the brain when she was looking at the same quotations that both of you looked at. >> what regions of the brain seem to be most involved for her? >>