Reference : A multicomponent exploration of verbal short-term storage deficits in normal aging an...
Scientific journals : Article
Human health sciences : Neurology
http://hdl.handle.net/2268/5304
A multicomponent exploration of verbal short-term storage deficits in normal aging and Alzheimer’s disease
English
Peters, Frédéric [Université de Liège - ULG > Centre de Recherches du Cyclotron > > >]
Majerus, Steve mailto [Université de Liège - ULg > Département des sciences cognitives > Psychopathologie cognitive >]
Olivier, Laurence [> > > >]
Van der Linden, Martial mailto [Université de Liège - ULg > Département des sciences cognitives > Psychopathologie cognitive >]
Salmon, Eric mailto [Université de Liège - ULg > Centre de Recherches du Cyclotron > Département des sciences cliniques - Neuroimagerie des troubles de la mémoire et révalid. cogn. > > >]
Collette, Fabienne mailto [Université de Liège - ULg > Département des sciences cognitives > Neuropsychologie - Département des sciences cognitives >]
2007
Journal of Clinical & Experimental Neuropsychology
Taylor & Francis
29
4
405-417
Yes (verified by ORBi)
International
1380-3395
1744-411X
Philadelphia
NY
[en] Alzheimer ; language
[en] Although many studies have shown diminished performance in verbal short-term memory tasks in normal aging and Alzheimer's disease (AD), the cognitive processes responsible for this verbal short-term storage (STS) impairment are still unclear for both populations. We explored verbal STS functioning in patients with AD, elderly participants, and young participants, by investigating a series of processes that could underlie STS impairments in normal elderly and AD populations. The processes we investigated were (a) the influence of lexical and sublexical language knowledge on short-term storage performance, (b) functioning of the phonological loop component via word length and phonological similarity effects, and (c) executive control processes (coordination and integration). For the AD and elderly groups, the influence of language knowledge on verbal STS performance and the functioning of the phonological loop were preserved. In contrast, the AD group showed deficits for coordination and integration processes. Our results suggest that the verbal STS deficit observed in AD patients is related to impaired executive control processes. On the other hand, language-related processes underlying passive storage capacity seem to be preserved.
Centre de Recherches du Cyclotron - CRC
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Interuniversity Attraction Pole P5/04
Researchers
http://hdl.handle.net/2268/5304
also: http://hdl.handle.net/2268/28749
10.1080/13803390600733064
http://www.informaworld.com/smpp/content~content=a778610953?words=&hash=2325627892$$www.tandf.co.uk/journals/copyright.asp

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