title: Delay of reinforcement in instrumental discrimination learning of rats.
mesh_terms: D000161:Acoustic Stimulation; D000818:Animals; D001307:Auditory Perception; D003214:Conditioning, Classical; D003216:Conditioning, Operant; D004193:Discrimination Learning; D008297:Male; D051381:Rats; D012055:Reinforcement Schedule; D012054:Reinforcement, Psychology