title: Secondary reinforcement established with intracranial stimulation in rat.
mesh_terms: D000161:Acoustic Stimulation; D000818:Animals; D003216:Conditioning, Operant; D004192:Discrimination, Psychological; D005108:Extinction, Psychological; D008297:Male; D008474:Medial Forebrain Bundle / Q000502:physiology*; D009434:Neural Pathways / Q000502:physiology*; D051381:Rats; D012054:Reinforcement, Psychology; D012653:Self Stimulation