Behavioral evidence of prolonged interhemispheric transfer time among psychopathic offenders.

Several lines of evidence suggest the possibility of abnormal interhemispheric communication in psychopathy, but there have been few direct empirical studies. To address this gap in the literature, the authors examined one important aspect of interhemispheric communication, the efficiency with which information is transferred across the corpus callosum. Using A.

Abnormal selective attention in psychopathic female offenders.

Research on psychopathy in women has generated equivocal laboratory findings. This study examined the performance of psychopathic women in 2 laboratory tasks designed to assess abnormal selective attention associated with response modulation deficits: a computerized picture-word (PW) task, and a picture-word Stroop (PW Stroop) task. Consistent with data from psychopathic men, women receiving high scores on the Psychopathy Checklist - Revised (Hare, 1991) displayed reduced Stroop interference on the PW and PW Stroop tasks.

Stroop tasks reveal abnormal selective attention among psychopathic offenders.

Selective attention among offenders with psychopathy was investigated using 3 Stroop paradigms: a standard color-word (CW) Stroop, a picture-word (PW) Stroop, and a color-word Stroop in which the word and color were spatially separated (separated CW). Consistent with "overselective" attention, offenders with psychopathy displayed reduced Stroop interference on the separated CW and PW tasks relative to offenders who were not psychopathic. However, offenders with psychopathy displayed normal Stroop interference on the standard CW Stroop.