Picture priming in normal aging and Alzheimer's disease.
Identifieur interne : 005524 ( Main/Merge ); précédent : 005523; suivant : 005525Picture priming in normal aging and Alzheimer's disease.
Auteurs : Soledad Ballesteros [Espagne] ; José M. Reales ; Julia MayasSource :
- Psicothema [ 0214-9915 ] ; 2007.
English descriptors
- KwdEn :
- MESH :
- diagnosis : Depression.
- epidemiology : Alzheimer Disease, Cognition Disorders, Depression.
- psychology : Aging, Alzheimer Disease, Depression.
- Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Visual Perception.
Abstract
The present study investigated age invariance for naming pictures and whether implicit memory is spared in Alzheimer's disease (AD). During the study phase, young adults, AD patients, and older controls were shown outlines of familiar pictures. After a distracter task, implicit memory was assessed incidentally. The results showed similar visual priming for the three groups, although young adults responded faster than the two older groups. Moreover, the number of errors was smaller for studied than for non-studied pictures. This pattern of results was repeated across the three groups, although AD patients produced more errors than young adults and older controls, and there were no differences between these latter groups. These results confirmed previous visual and haptic findings showing unimpaired perceptual priming in normal aging and AD patients when implicit memory is assessed using identification tasks. These results are interpreted from a cognitive neuroscience perspective.
PubMed: 17425893
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pubmed:17425893Le document en format XML
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