S.O.T.T: Psychopaths, and to a degree, sociopaths, show a lack of emotion, especially the social emotions, such as shame, guilt, and embarrassment. Cleckley said that the psychopaths he came into contact with showed a "general poverty in major affective reactions," and a "lack of remorse or shame." The PCL describes psychopaths as "emotionally shallow" and showing a lack of guilt. Psychopaths are notorious for their lack of fear. When normal people are put into an experimental situation where they anticipate that something painful will happen, such as a mild electric shock, or a mildly aversive pressure applied to a limb, a brain network activates. Normal people will also show a clear skin conductance response produced by sweat gland activity. In psychopathic subjects, however, this brain network showed no activity and no skin conductance responses were emitted (Birbaumer et al., 2012)..
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