I was happy to land my second review paper in the journal Aggression and Violent Behavior. Quibbling over terminology is not uncommon in any field, but I make the case that these two terms have to be treated separately. Robert Hare, the designer of the the Psychopathy Checklist (PCL), and Paul Babiak, state in their book Snakes in Suits that sociopaths differ from psychopaths in that they do have a sense of morality, although it’s a sense derived from a subculture (rather than the over-arching parent culture). The presence of a sense of morality means that the brain of the sociopath is likely to be different from the brain of the psychopath, or the characteristics that define both represent different brain systems – perhaps with some overlap.
Pemment, J. (2013) Psychopathy versus Sociopathy: Why the distinction has become crucial, Aggression and Violent Behavior (In press)
The terms psychopath
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