A rotating computerized image of Frisell's brain reveals no structural anomalies. Hare describes one of the most convincing studies to date comparing psychopaths with non-psychopaths. Hare interprets these differences in terms of semantic processing but cautions that the basis of the differences is still not completely understood. It may be that the differences are primarily responses to the differences in strategy where different parts of the brain are involved. The question of how we deal with psychopaths is raised by the narrator as we see a group therapy session involving Frisell and other inmates responding to a prison therapist.
Hare discusses the inability of such programs to change the behavior psychopaths.
The psychopath does not suffer from subjective experience such as anxiety or lack of selfesteem. The psychopath's behavior is simply at odds with what society considers to be acceptable. They see nothing wrong with them, the problem is with society. Hare's current research continues to search for how the different parts of the brain are interconnected and how these connections are used in a particular situation. Other research indicates that these areas have been associated with integration of emotional and other aspects of cognition.