Study reveals psychopaths have significant differences in brain structure -- grey matter.

[backscatter712]

8. No, that's the distinction between psychopaths and psychotics.

Psychopath is almost synonymous with sociopath - the only difference is that a psychopath's behavior is biologically caused, while a sociopath's is caused by social and environmental factors - nature vs. nurture. I'm oversimplifying, but I think I get some of the point across.

The different between a psychotic and a psychopath/sociopath?

A psychotic person doesn't know that what he/she is doing is wrong due to delusions, screwed up cognition, so on.

A psychopath/sociopath knows the difference between right & wrong, but just doesn't care.

Psychotic: Norman Bates.

Psychopathic: Hannibal Lecter

Caveat - Norman Bates is psychotic because of his split personality, but his Mother personality, Norma Bates (cue screeching violins) is psychopathic. Confused yet?