Those are slowly being identified as artifacts of trauma[1], at least the pathological cases are. SO imagine how prevalent they were in the Classical world.
[1]] I don't hold that un-self-aware people are pathological...
I'm sure it is possible to be born one and not made. I read one position that psychopathy was by nature and sociopathy by nurture, describing the same ends by differing means.
jwdunne|9 years ago