title: Neurophysiological study of 47, XYY and 47, XXY psychopaths: contingent negative variation, evoked potentials and motor nerve conduction.
abstract: Neurophysiological investigations-including sensory-evoked responses, contingent negative variation (CNV), and nerve conduction velocities-were done in 11 male polygonosomic patients and in comparison with a control group. Some significant data are reported pointing out differences which may be related to a hypovigil type (47, XYY) and a hypervigil type (47, XXY). The importance of the CNV and conduction velocity as an index of a constitutional minimal brain dysfunction is discussed.
mesh_terms: D000328:Adult; D000987:Antisocial Personality Disorder / Q000503:physiopathology*; D001143:Arousal / Q000502:physiology; D001303:Auditory Cortex / Q000503:physiopathology; D003265:Contingent Negative Variation; D004594:Electrophysiology; D005071:Evoked Potentials; D006801:Humans; D007713:Klinefelter Syndrome / Q000503:physiopathology; D008297:Male; D009046:Motor Neurons / Q000502:physiology*; D009431:Neural Conduction; D012729:Sex Chromosome Aberrations / Q000503:physiopathology*; D013003:Somatosensory Cortex / Q000503:physiopathology; D014793:Visual Cortex / Q000503:physiopathology