title: Drive shifting prior to extinction of bar pressing reinforced by different sucrose incentives.
mesh_terms: D000818:Animals; D003216:Conditioning, Operant; D004328:Drive; D005108:Extinction, Psychological; D006815:Hunger; D008297:Male; D009042:Motivation; D051381:Rats; D012054:Reinforcement, Psychology; D013894:Thirst