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|Title:||Response modulation deficits in psychopaths: A failure to confirm and a reconsideration of the Patterson-Newman model|
|Authors:||Howard, R. |
|Source:||Howard, R., Payamal, L.T., Neo, L.H. (1997-05). Response modulation deficits in psychopaths: A failure to confirm and a reconsideration of the Patterson-Newman model. Personality and Individual Differences 22 (5) : 707-717. ScholarBank@NUS Repository.|
|Abstract:||This study addressed the question of whether psychopathic individuals show a passive avoidance deficit and, if so, what the mediating behavioural mechanisms might be. This was done by modifying the cued reaction time task used in a previous study by Howland, Kosson, Patterson and Newman (1993, Journal of Abnormal Psychology, 102, 379-387), such that it comprised a mixed-motive Go/No Go task with monetary punishment of responses to No Go cues. Subjects were 50 inmates of a medium-security Singaporean prison who were assessed for degree and sub-type of psychopathy using the Hare PCL and DIS. Contrary to the model of Patterson and Newman (1993, Psychological Review, 100, 716-736), no evidence was found to support response modulation deficits in psychopathic subjects. More impulsive/psychopathic subjects showed evidence of insensitivity to cues of reward/non-punishment, consistent with a reported active avoidance deficit in psychopaths. Their overall pattern of performance was consistent with a global affective-motivational deficit. © 1997 Elsevier Science Ltd.|
|Source Title:||Personality and Individual Differences|
|Appears in Collections:||Staff Publications|
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