In this TED talk, Daniel Reisel wants people in the community to rethink how the justice system treats criminals when it comes to rehabilitation by using a murderer in Russia, Reisel calls him Joe, as an example to talk about. Reisel became interested in about how people change behavior so he decided to study psychopathic murderers and mice (since the mind of many different spices works in similar ways) in their physical response to the categories of emotions. According to his research when Reisel tested out some criminals he found out that those criminals failed to show a physical and an emotional response when they looked at a picture of a sad person since their heart rate barely increased as well them not showing any signs of sweating. Reisel believes that those criminals who are at similar positions like Joe behaved like they did was due to lack of amygdala in their brain. Reisel also found out that being alone causes those subjects to develop repetitive routines, mice losing the ability to socialize with other mice. So Reisel asks why place criminals and other people in incarceration for rehabilitation if, according to studies, this could potentially get them the opposite results that you want to get.