title: The relationship between age and qualitative or quantitative impairment of abstract reasoning in the brain damaged.
mesh_terms: D000328:Adult; D000368:Aged; D000375:Aging; D001925:Brain Damage, Chronic; D003118:Color Perception; D003210:Concept Formation; D005556:Form Perception; D006801:Humans; D008875:Middle Aged; D011340:Problem Solving; D012858:Size Perception