Age differences in performance between rats in two experimental social organizations.
D000375:Aging; D000818:Animals; D001522:Behavior, Animal; D003163:Competitive Behavior; D003216:Conditioning, Operant; D005247:Feeding Behavior; D005260:Female; D008297:Male; D051381:Rats; D011930:Reaction Time; D012054:Reinforcement, Psychology; D012919:Social Behavior; D012930:Social Dominance