I'm reading Zimbardo's The lucifer effect: understanding how good people turn to evil in which he describes the famous Stanford prison experimentthat investigated the psychological effects of perceived power, focusing on the struggle between prisoners and prison guards. The experiment's results favor situational attribution of behavior over dispositional attribution. It seemed that the situation, rather than their individual personalities, caused the participants' evil behavior.Zimbardo concluded that a set of psychological processes - among them deindividuation and obedience to authority - can induce good people to do evil. Specifiying Zimbardo's definition of evil:  - Evil consists in intentionally behaving in ways that harm, abuse, demean, dehumanize, or destroy innocent others - or using one's authority and systemic power to encourage or permit others to do so on your behalf -  my question is: Does a cerebral circuit of evil induced by situational circumstances exist ? 
Any research on brain's processes involved in evil actions?
cognitive psychology;social psychology;cognitive neuroscience;personality;evil