title: Age effects in the acquisition and retention of active and passive avoidance learning by rats.
mesh_terms: D000375:Aging; D000818:Animals; D001362:Avoidance Learning; D001522:Behavior, Animal; D003213:Conditioning, Psychological; D004597:Electroshock; D005239:Fear; D008297:Male; D008568:Memory; D009043:Motor Activity; D051381:Rats; D013997:Time Factors