P300 wave: a comparative study of impulsive aggressive criminals.
Event-Related potentials are a simple non-invasive neurophysiological method enabling to comprehend certain aspects of the cognitive processing of information in humans. The best-known component of Event-Related Potentials is the so-called P3 wave. Alterations in the parameters of P300 wave have been discovered in certain personality disorders and in persons with impulsively aggressive behaviour. The purpose of this study is to investigate the changes of these parameters, especially an amplitude and latency in the place of Pz electrode. We examined 15 persons with the impulsive aggressive behaviour and compared them to a population comparable of normal age, gender and approximate degree of education. We used P300 auditory and a neuropsychological Eysenck IVE battery. The results showed that significantly lower amplitudes had been found in the aggressive impulsive subjects as compared to the control group. No statistically significant differences have been discovered in the latency. These results seem to confirm previous studies.
Zukov
Ilja
I
Department of Psychiatry, 1st Faculty of Medicine, Charles University, Ke Karlovu 11, 128 08 Prague, Czech Republic. iljazukov@seznam.cz
Hrubý
Tomás
T
Kozelek
Petr
P
Ptácek
Radek
R
Paclt
Ivo
I
Harsa
Pavel
P
D000328:Adult; D000374:Aggression / Q000502:physiology* / Q000523:psychology*; D000513:Alpha Rhythm; D000704:Analysis of Variance; D003415:Crime / Q000523:psychology*; D018153:Czech Republic; D004569:Electroencephalography; D018913:Event-Related Potentials, P300 / Q000502:physiology*; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D007175:Impulsive Behavior / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D011795:Surveys and Questionnaires; D014754:Violence / Q000523:psychology