title: Some correlates of rapid eye movement sleep in the normal aged male.
mesh_terms: D000368:Aged; D003071:Cognition; D004328:Drive; D006225:Hand / Q000502:physiology; D006801:Humans; D007361:Intelligence Tests; D008297:Male; D008568:Memory; D009132:Muscles / Q000502:physiology; D010413:Penis / Q000502:physiology; D012725:Sexual Behavior; D012895:Sleep, REM