title: Some temporal characteristics of paradoxical (LVF) sleep occurrence in the rat.
mesh_terms: D000818:Animals; D003624:Darkness; D004569:Electroencephalography; D006624:Hippocampus / Q000502:physiology; D008027:Light; D008297:Male; D010507:Periodicity; D051381:Rats; D012890:Sleep; D012894:Sleep Stages; D012895:Sleep, REM; D013997:Time Factors; D014851:Wakefulness