http://www.med.wisc.edu/news-events/news/psychopaths-brains-show-differences-in-structure-and-function/32979 http://www.med.wisc.edu/news-events/news/psychopath

http://www.med.wisc.edu/news-events/news/psychopaths-brains-show-differences-in-structure-and-function/32979 http://www.med.wisc.edu/news-events/news/psychopaths-brains-... The study showed that psychopaths have reduced connections between the ventromedial prefrontal cortex (vmPFC), the part of the brain responsible for sentiments such as empathy and guilt, and the amygdala, which mediates fear and anxiety.