[Neurophysiologic aspects of sleep deprivation in depression].

Study of EEG in 45 patients, suffering from endogenic and psychogenic depression, in the state of rest, in mental and emotional loads, SGR, orienting reaction and night sleep before and after a course of sleep deprivation has shown that neurophysiological shifts in the cycle alertness-sleep have one direction. The weakening of depression was accompanied by rather unidirected alterations of neurophysiological relations, which testified to the normalization of biological periods of the organism.