Selection for the readiness to respond to electrical stimulation of the hypothalamus as a reinforcing agent.
D000818:Animals; D001522:Behavior, Animal; D004558:Electric Stimulation; D005260:Female; D005824:Genetics, Behavioral; D007031:Hypothalamus / Q000502:physiology*; D008297:Male; D051381:Rats; D012653:Self Stimulation