Article (Scientific journals)
The impact of inhibition capacities and age on number–space associations.
HOFFMANN, Danielle; Pigat, Delia; SCHILTZ, Christine
2014In Cognitive Processing
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Keywords :
SNARC effect; Numerical cognition; Normal aging; Inhibition; Individual differences
Abstract :
[en] Numerical and spatial representations are tightly linked, i.e., when doing a binary classification judgment on Arabic digits, participants are faster to respond with their left/right hand to small/large numbers, respectively (Spatial-Numerical Association of Response Codes, SNARC effect, Dehaene et al. in J Exp Psychol Gen 122:371–396, 1993). To understand the underlying mechanisms of the well-established SNARC effect, it seems essential to explore the considerable inter-individual variability characterizing it. The present study assesses the respective roles of inhibition, age, working memory (WM) and response speed. Whereas these non-numerical factors have been proposed as potentially important factors to explain individual differences in SNARC effects, none (except response speed) has so far been explored directly. Confirming our hypotheses, the results show that the SNARC effect was stronger in participants that had weaker inhibition abilities (as assessed by the Stroop task), were relatively older and had longer response times. Interestingly, whereas a significant part of the age influence was mediated by cognitive inhibition, age also directly impacted the SNARC effect. Similarly, cognitive inhibition abilities explained inter-individual variability in number– space associations over and above the factors age, WM capacity and response speed. Taken together our results provide new insights into the nature of number–space associations by describing how these are influenced by the non-numerical factors age and inhibition.
Disciplines :
Theoretical & cognitive psychology
Author, co-author :
HOFFMANN, Danielle ;  University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Educational Measurement and Applied Cognitive Science (EMACS)
Pigat, Delia
SCHILTZ, Christine ;  University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Educational Measurement and Applied Cognitive Science (EMACS)
Language :
English
Title :
The impact of inhibition capacities and age on number–space associations.
Publication date :
2014
Journal title :
Cognitive Processing
ISSN :
1612-4782
eISSN :
1612-4790
Publisher :
Springer Verlag, Heidelberg, Germany
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
PHD-09-160, F3R-EMA-PUL-09NSP2
Funders :
FNR - Fonds National de la Recherche
Available on ORBilu :
since 20 January 2014

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