Electrical brain stimulation and food reinforcement dissociated by demand elasticity.
D000818:Animals; D002755:Choice Behavior / Q000502:physiology; D004435:Eating; D007031:Hypothalamus / Q000502:physiology*; D008297:Male; D051381:Rats; D012055:Reinforcement Schedule; D012653:Self Stimulation / Q000502:physiology*