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ERIC Number: EJ1072518
Record Type: Journal
Publication Date: 2015-Sep
Pages: 12
Abstractor: As Provided
ISSN: ISSN-1863-9690
Inhibition in Dot Comparison Tasks
Clayton, Sarah; Gilmore, Camilla
ZDM: The International Journal on Mathematics Education, v47 n5 p759-770 Sep 2015
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.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A