The characteristics of non-criminals with high psychopathy traits: Are they similar to criminal psychopaths?

This study compared the findings from a sample of non-criminals with high and low psychopathy levels to published findings with criminal psychopaths and non-psychopaths. Congruent to findings with criminal psychopaths, participants with high psychopathy traits (High-P) compared to those with low psychopathy traits (Low-P) performed significantly worse on the Iowa Gambling Task, a task sensitive to orbital frontal cortex dysfunction. Moreover, the High-P group also evidenced a lack of empathy, a hallmark feature of psychopathy. These findings could not be explained by differences in estimated IQ or performance on a task sensitive to an executive functioning deficit. The discussion focuses on possible differences between non-criminal and criminal psychopaths, concluding criminal psychopaths manifest more extreme degrees of the interpersonal-affective and antisocial features of psychopathy. (C) 2007 Elsevier Inc. All rights reserved.