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Title: Inhibition in dot comparison tasks
Authors: Clayton, Sarah
Gilmore, Camilla K.
Keywords: Inhibition
Approximate Number System
Numerical cognition
Dot comparison
Visual cues
Issue Date: 2015
Publisher: © Springer
Citation: CLAYTON, S. and GILMORE, C.K., 2015. Inhibition in dot comparison tasks. ZDM: Mathematics Education, 47(5), pp.759-770.
Abstract: Dot comparison tasks are commonly used to index an individual’s Approximate Number System (ANS) acuity, but the cognitive processes involved in completing these tasks are poorly understood. Here we investigated how factors including numerosity ratio, set size and visual cues influence task performance. Forty-­four children aged 7-­9 years completed a dot comparison task with a range of to-­be-­compared numerosities. We found that as the size of the numerosities increased, with ratios held constant, accuracy decreased due to the heightened salience of incongruent visual information. Furthermore, in trials with larger numerosities participants’ accuracies were influenced more by the convex hull of the array than the average dot size. The numerosity ratio between the arrays in each trial was an important predictor for all set sizes. We argue that these findings are consistent with a ‘competing processes’ inhibition-­based account, where accuracy scores are influenced by individual differences in both ANS acuity and inhibitory control skills.
Description: The final publication is available at Springer via http://dx.doi.org/10.1007/s11858-014-0655-2
Sponsor: This paper was supported by a Royal Society Dorothy Hodgkin Fellowship.
Version: Accepted for publication
DOI: 10.1007/s11858-014-0655-2
URI: https://dspace.lboro.ac.uk/2134/17021
Publisher Link: http://dx.doi.org/10.1007/s11858-014-0655-2
ISSN: 1863-9690
Appears in Collections:Published Articles (Mathematics Education Centre)

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