by Scott O. Lilienfeld, Ph.D. and Hal Arkowitz, Ph.D. (Reproduced with permission. © 2007 Scientific American Inc. All Rights Reserved.) We have all heard these phrases before. “Violent psychopath” (21,700). “Psychopathic serial killer” (14,700). “Psychopathic murderer” (12,500). “Deranged psychopath” (1,050). The number of Google hits following them in parentheses attests to their currency in popular … Read more

by David S. Kosson and Robert D. Hare The concept of psychopathy or psychopathic personality has been around for a long time under a variety of different names and with several different but overlapping definitions. The first conceptualization usually linked to the modern concept of the disorder was Philippe Pinel’s description of manie sans delire, … Read more