Response involvement in brain stimulation reward.
D000818:Animals; D001921:Brain / Q000502:physiology*; D007033:Hypothalamus, Middle / Q000502:physiology; D008297:Male; D051381:Rats; D012054:Reinforcement, Psychology; D012201:Reward; D012653:Self Stimulation / Q000502:physiology*; D013997:Time Factors