ERPs to words--effect of gender and site of recording electrode.
Event-related potentials (ERPs) to word stimuli were registered in 20 twenty-one-year-old students (7 males and 13 females) of the Faculty of Medicine of Palacký University. In an ideal case in the first 800 ms after the onset of stimulus ERP consists of three clear positive and four negative waves. The amplitude of some waves of ERPs shows a high degree of inter-individual variability. It was also revealed that the latency and amplitude of some ERPs waves to word stimuli depends on the gender and on the site of the registration electrode on the scalp of the subject. Latencies of components LP2 and LN4 in all electrodes are shorter in females than in males, component LN2 behaves reversely--its latency is shorter in males. On the other hand, the amplitude of dependent variables BP2, BN2 and PV1 is in most electrodes higher in females than in males--except for the amplitude of components BP4 and BN1.
Petrek
Josef
J
Institute of Physiology, Faculty of Medicine, Palacký University, Olomouc 775 15, Czech Republic. fesoj@tunw.upol.cz
D000328:Adult; D004566:Electrodes; D005072:Evoked Potentials, Auditory; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D011578:Psycholinguistics; D012727:Sex Characteristics