[Simultaneous recording of visually evoked potentials (VEP) and registration of simple visual reaction times (RT) in the maximum range of ethanol influence (author's transl)].

The method of simultaneous recording of visual-evoked response (1 occipit-vertex) and simple reaction time to periodic foveal visual stimuli of 1/" per sec was applied to 16 normal individuals. On two successive days the conditions were kept constant except for an independent variable, i.e., ethanol with an average peak of 1.32%; the range of 0.1% below the peak being examined. The amplitude of the component N2-P3 (120-170 msec after the stimuli) was depressed in all individuals. The latencies of N2 and P3 were increased concurrently. The latency of P3, for example, was increased by 10.7% (P less than or equal 0.01) and that of the means of simultaneously recorded reaction time by 14.8% (P less than or equal 0.01). The amount of the increase, however, showed no significant correlation between the two when using Spearman's correlation coefficient and t-test.