title: Temporal discrimination of short intervals of dreamless sleep.
mesh_terms: D000328:Adult; D002940:Circadian Rhythm; D003071:Cognition; D004192:Discrimination, Psychological; D004569:Electroencephalography; D006801:Humans; D008297:Male; D012890:Sleep; D012895:Sleep, REM; D013998:Time Perception; D014851:Wakefulness