The mangled butterfly: Rorschach results from 45 violent psychopaths.

Participants were 45 violent California male prison inmates scoring 30 or more on the Psychopathy Checklist-Revised (PCL-R; Hare, 1991, 2003). Inmates were evaluated using Rorschach and neuropsychological test data. The participants' intellectual functioning was within the low-average range and displayed a lack of flexibility.

Four-facet PCL-R structure and cognitive functioning among high violent criminal offenders.

High violent inmates (N = 126) were administered the Psychopathy Checklist-Revised (PCL-R; Hare, Clark, Grann, & Thornton, 2000; Hare et al., 1990) and neuropsychological measures. No significant correlations were present between the overall PCL-R score and 14 cognitive measures.

A practical method for the evaluation of symptom exaggeration in minor head trauma among civil litigants.

Forensic psychiatrists and psychologists are often called on to provide opinions and render testimony in which minor head trauma accompanied by persistent somatic, cognitive, and/or emotional symptoms is alleged. The frequency of persistent symptoms following such minor head injury is generally low. The forensic clinician therefore must differentiate between subtle brain dysfunction, symptom amplification, psychogenic-based causes for the presence of cognitive and other deficits, or frank malingering.