Reference : Dissociation of perceptual and motor inhibitory processes in young and elderly partic...
Scientific journals : Article
Social & behavioral sciences, psychology : Neurosciences & behavior
http://hdl.handle.net/2268/3202
Dissociation of perceptual and motor inhibitory processes in young and elderly participants using the Simon task.
English
Germain, Sophie mailto [Université de Liège - ULg > Département des sciences cognitives > Neuropsychologie >]
Collette, Fabienne mailto [Université de Liège - ULg > Département des sciences cognitives > Neuropsychologie - Département des sciences cognitives >]
2008
Journal of the International Neuropsychological Society
Cambridge University Press
14
6
1014-21
Yes (verified by ORBi)
International
1355-6177
1469-7661
Cambridge
United Kingdom
[en] Aging ; Inhibibitory control
[en] Deficits in inhibitory abilities are frequently observed in normal aging. However, few studies have explored the generality of these deficits in a single group of participants. Here, we used an adaptation of the Simon task to differentially assess perceptual and motor inhibition using the same stimuli and task design and to determine whether these processes use separate or shared cognitive resources. We were interested in determining whether (1) normal aging is associated with the use of separate (as previously evidenced in young participants) or similar cognitive resources to perform perceptual and motor inhibition tasks; (2) older participants present a specific impairment in one of these two processes. Analyses of reaction times indicated that motor and perceptual inhibitory processes share some cognitive resources and both are impaired in normal aging. These results can be interpreted by considering that a dedifferentiation process is responsible for the inhibitory deficits presented by older participants.
Centre de Neurosciences Cognitives et Comportementales ; Centre de Recherches du Cyclotron - CRC
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/3202
10.1017/S135561770808123X
http://journals.cambridge.org/download.php?file=%2FINS%2FINS14_06%2FS135561770808123Xa.pdf&code=47d01db4b04c094a7ed3eff3d6c22b2f

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