Central processing in the aged.
D000368:Aged; D003118:Color Perception; D005260:Female; D005425:Flicker Fusion; D006801:Humans; D008297:Male; D010364:Pattern Recognition, Visual; D011597:Psychomotor Performance; D011930:Reaction Time; D011932:Reading; D012660:Semantics; D014796:Visual Perception