[The second rhythm and brain slow wave potentials reflecting physiological condition in humans].
In 4-hour experiments, dynamics of second brain potentials and the parameters of a conventionally negative wave, were studied. Along with growing fatigue, the amplitude of the second brain potentials was found to increase with a simultaneous increase in correlation relationships among the second oscillations registered in different areas which fact may serve as a diagnostic sign when controlling functional condition in humans. Velocity of a simple sensomotor response turned out to depend on coincidence with a current phase of the second brain potentials. The shortest time of response corresponded to responses against the background of a positive phase of the second oscillations. In fatigue, the dependence is enhanced.
Kirdiankin
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D000328:Adult; D004562:Electrocardiography; D004569:Electroencephalography; D005071:Evoked Potentials / Q000502:physiology*; D005221:Fatigue / Q000503:physiopathology; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D009424:Nervous System Physiological Phenomena; D011597:Psychomotor Performance; D011930:Reaction Time