title: Variability of the averaged evoked potentials in healthy subjects after 24-hour sleep deprivation.
abstract: Variability of the averaged evoked visual potentials in healthy subjects after 24-hour sleep deprivation. Acta Physiol. Pol., 1977, 28 (1): 61-69. The authors evaluated the effects of 24-hour sleep deprivation on visual evoked potentials in 20 pilots aged 20 to 40 years, clinically healthy and with normal bioelectric cerebral activity. A slight reduction in the latency time of components was observed, mainly in the non-specific part of the visual evoked potentials, and a rise in the P3-N4 amplitude. An analysis of the duration of potential components suggests that sleep deprivation causes disturbances in the equilibrium between the processes of excitation and inhibition from non-specific structures (with increased excitation). All parameters assessed may evidence increased excitation of the central nervous system after activation with insomnia + light flashes, and may be useful for extending the diagnostic possibilities in cases of borderline pathological changes in cerebral bioelectric activity.
mesh_terms: D000328:Adult; D002540:Cerebral Cortex / Q000502:physiology; D004569:Electroencephalography; D005071:Evoked Potentials; D006801:Humans; D008297:Male; D011930:Reaction Time; D012890:Sleep / Q000502:physiology; D012892:Sleep Deprivation; D014785:Vision, Ocular; D014851:Wakefulness / Q000502:physiology