The effects of food deprivation on unreinforced and light-reinforced bar pressing.
D000818:Animals; D003216:Conditioning, Operant; D003213:Conditioning, Psychological; D005108:Extinction, Psychological; D005260:Female; D006815:Hunger; D008027:Light; D008297:Male; D051381:Rats; D012054:Reinforcement, Psychology