Choice responding by rats as a function of drive operation.
D000818:Animals; D001835:Body Weight; D003216:Conditioning, Operant; D004328:Drive; D005502:Food; D005508:Food Deprivation; D008297:Male; D051381:Rats; D012054:Reinforcement, Psychology; D014867:Water; D014868:Water Deprivation
D014867:Water