Competition between food and rewarding brain shock.
D000818:Animals; D001835:Body Weight; D003216:Conditioning, Operant; D004435:Eating; D004558:Electric Stimulation; D004567:Electrodes, Implanted; D005508:Food Deprivation; D006815:Hunger; D007031:Hypothalamus / Q000502:physiology; D008297:Male; D051381:Rats; D012201:Reward; D012653:Self Stimulation; D013217:Starvation; D013238:Stereotaxic Techniques