Alzheimer's disease in Down's syndrome: visual retention deficits.
D000328:Adult; D000367:Age Factors; D000544:Alzheimer Disease / Q000150:complications*; D003704:Dementia / Q000150:complications*; D004314:Down Syndrome / Q000150:complications*; D006801:Humans; D007360:Intelligence; D008568:Memory; D008569:Memory Disorders / Q000209:etiology*; D008570:Memory, Short-Term; D008875:Middle Aged; D012153:Retention, Psychology; D014796:Visual Perception