@article {309849, title = {Sadistic cruelty and unempathic evil: Psychobiological and evolutionary considerations}, journal = {Behavioral and Brain Sciences}, volume = {29}, year = {2006}, month = {6}, pages = {242{\textendash}242}, abstract = {Understanding the origins of evil behaviour is one of our most important intellectual tasks. A distinction can perhaps be drawn between overt sadistic cruelty and the lack of empathy to suffering that is a hallmark of evil. There is increasing data available on the prevalence, proximal psychobiological underpinnings, and distal evolutionary basis for these contrasting phenomena.}, issn = {1469-1825}, doi = {10.1017/S0140525X06419051}, url = {http://journals.cambridge.org/article_S0140525X06419051}, author = {Stein,Dan J.} }