Periprandial self-intravenous drinking in the rat.
D000818:Animals; D002940:Circadian Rhythm; D003216:Conditioning, Operant; D004326:Drinking; D004435:Eating; D005508:Food Deprivation; D007275:Injections, Intravenous; D008297:Male; D051381:Rats; D012055:Reinforcement Schedule; D012469:Salivary Glands / Q000502:physiology; D012472:Salivation; D014882:Water-Electrolyte Balance