A STUDY ON THE CHARACTERISTICS AND NORMAL VALUES OF VISUALLY EVOKED POTENTIALS IN FLYING CADETS
- VernacularTitle:飞行学员视觉诱发电位特征及常值的研究
- Author:
Zhangrui JIN
- Publication Type:Journal Article
- From:
Medical Journal of Chinese People's Liberation Army
1981;0(06):-
- CountryChina
- Language:Chinese
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Abstract:
In order to apply the brain evoked potential (BEP) in neurological examinations and medical evaluations of flying crew (cadets), we recorded and analysed visually evoked potential (VEP) of 195 normal flying, cadets of 17-19 years of age. This report concerns mainly the basic wave form, its characteristics as well as latent period and peak-to-peak values.The results showed that chief wave group and latent period were more stable. There were no notable difference in latent periods and amplitudes between two hemispheres except P2-N2. When there was mental strain, latent period was markedly shortened. There was no notable difference in the amplitudes. While the fronto-occipital VEP phase showed difference. The mean values of latent period of P1,N1, P2, N2, P, were 90.66?23.14,125.25?28.06,184.59?32.01, 264.20?50.28,304.30?48.40 respectively, and those of peak-to-peak of N1-P2, P2-N2, N2-P3 were 10.28?4.60, 9.16?4.10, 3.05?2.26 respectively. The characteristics of VEP, the reliability of its normal values, and preliminary opinion on the applica tion of evoked potentials in aerospace medicine were discussed.
