title: Effects of gonadectomy on sex differences in DRL behavior.
mesh_terms: D000818:Animals; D001362:Avoidance Learning; D002369:Castration; D003216:Conditioning, Operant; D005247:Feeding Behavior; D005260:Female; D006799:Housing, Animal; D008297:Male; D010053:Ovary / Q000378:metabolism; D051381:Rats; D012055:Reinforcement Schedule; D012201:Reward; D012737:Sex Factors; D013737:Testis / Q000378:metabolism