Sleep-wake cycle of an unrestrained isolated chimpanzee under entrained and free running conditions.
D000818:Animals; D002940:Circadian Rhythm; D003624:Darkness; D004569:Electroencephalography; D006801:Humans; D008027:Light; D008297:Male; D009068:Movement; D002679:Pan troglodytes; D012683:Sensory Deprivation; D012890:Sleep; D012895:Sleep, REM; D012934:Social Isolation; D013315:Stress, Psychological; D014851:Wakefulness