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Cortical Correlates of Impaired Self-Regulation in Personality Disordered Patients with Traits of Psychopathy
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Cortical Correlates of Impaired Self-Regulation in Personality Disordered Patients with Traits of Psychopathy
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Journal Article
Cortical Correlates of Impaired Self-Regulation in Personality Disordered Patients with Traits of Psychopathy
2011
Overview
Psychopathic personality disordered patients would, by virtue of a failure to self-regulate, be expected to show diminished amplitudes of feedback-related brain potentials. Among a sample of personality disordered patients detained at different levels of security, those who met a Psychopathy Checklist (PCL) criterion of 25 or above were identified (N = 27). Their event-related brain potentials (ERPs), together with those of their nonpsychopathic counterparts (N = 22) and healthy male controls (N = 20), were measured while they performed a visual Go/No Go task, with feedback given for correct and incorrect performance. Psychopathic patients showed a significantly reduced amplitude of an early frontal negative ERP component maximally evoked by negative feedback, and a high rate of errors of commission. Findings are consistent with the idea that psychopathic patients' unsuccessful attempts to self-regulate reflect a cognitive deficit characterised by a failure to attend and respond to a mismatch between expected and obtained outcomes.
Publisher
Guilford,Guilford Press
Subject
Adult and adolescent clinical studies
/ Antisocial personality disorder
/ Antisocial Personality Disorder - physiopathology
/ Antisocial Personality Disorder - psychology
/ Biological and medical sciences
/ Brain
/ Cerebral Cortex - physiopathology
/ Errors
/ Evoked Potentials - physiology
/ Feedback
/ Humans
/ Male
/ Males
/ Morality
/ Patients
