The multiplicity of biological oscillators in the control of circadian running activity in the rat.
D000818:Animals; D002940:Circadian Rhythm; D003463:Cues; D004777:Environment; D005247:Feeding Behavior / Q000502:physiology*; D007031:Hypothalamus / Q000502:physiology; D008297:Male; D008954:Models, Biological; D008959:Models, Neurological; D009043:Motor Activity / Q000502:physiology*; D051381:Rats; D013997:Time Factors