title: Tonic and phasic events during sleep: psychological correlates and implications.
mesh_terms: D001143:Arousal; D001921:Brain / Q000502:physiology*; D004325:Dreams; D006801:Humans; D008297:Male; D008568:Memory; D011603:Psychophysiology; D012890:Sleep; D012895:Sleep, REM; D014796:Visual Perception