ORBi: Manard Marine - Does processing speed protect from age-related decline in cognitive control?

Reference : Does processing speed protect from age-related decline in cognitive control?


	Document type :	Scientific congresses and symposiums : Poster
	Discipline(s) :	Social & behavioral sciences, psychology : Neurosciences & behavior
	To cite this reference:	http://hdl.handle.net/2268/133519

Title :	Does processing speed protect from age-related decline in cognitive control?
Language :	English
Author, co-author :	Manard, Marine [Université de Liège - ULg > Département de Psychologie : cognition et comportement > Neuropsychologie >]
	Carabin, Delphine []
	Collette, Fabienne [Université de Liège - ULg > Département de Psychologie : cognition et comportement > Neuropsychologie >]
Publication date :	30-Aug-2012
Page number :	1.47X0.96
On invitation :	No
Audience :	International
Event name :	Amsterdam Memory Slam
Event date :	du 30 au 31 août 2012
Event organizer :	Université d'Amsterdam
Event place (city) :	Amsterdam
Event country :	Pays-Bas
Keywords :	[en] Cognitive control ; processing speed ; aging
Abstract :	[en] Age-related difficulties have been reported on proactive control whereas reactive control seems to remain intact. This study investigated the potential influence of speed of processing abilities on the age-related decline in proactive control. We used a working memory recognition paradigm involving proactive or reactive cognitive control by manipulating the interference level across items. 80 young adults (18-29 years old) and 80 healthy older adults (60-89 years old) were included. Main results revealed significant effects of age on interference sensitivity. As expected, reactive control performance remained intact with aging (similar interference effect in the two groups). In contrast, we observed a larger interference effect in the proactive condition in aging. Finally, when the groups are matched according to their processing speed (assessed by the Code task of the WAIS III, with both younger and older adults having a score comprised between 60 and 93), the effect of age on sensitivity to interference disappeared. In other words, when younger and older adults had similar speed of processing abilities, no age-related proactive control decline was observed. In conclusion, beyond the fact that this study confirms the selective age-related decline in proactive control, it also indicates that speed of processing, a measure considered as reflecting the integrity of cognitive functioning during aging, influences the efficiency of proactive control in that population.
Research units :	Centre de Recherches du Cyclotron - CRC
Funders :	Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Université de Liège
Name of the research project :	Investigation of the influence of genotype variability on neural substrates of memory processes in normal ageing
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/133519

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