title: EFFECT OF AGE AND EXPERIENCE ON BAR PRESSING AND ACTIVITY IN THE RAT.
mesh_terms: D000375:Aging; D000818:Animals; D001522:Behavior, Animal; D007858:Learning; D009042:Motivation; D005082:Physical Exertion; D051381:Rats; D012106:Research; D013223:Statistics as Topic
keywords: AGING; BEHAVIOR, ANIMAL; EXERTION; EXPERIMENTAL LAB STUDY; LEARNING; MOTIVATION; RATS; STATISTICS