Fluency in symbolic arithmetic refines the approximate number system in parietal cortex

Human Brain Mapping
Macarena Suárez-Pellicioni, James R Booth

Abstract

The objective of this study was to investigate, using a brain measure of approximate number system (ANS) acuity, whether the precision of the ANS is crucial for the development of symbolic numerical abilities (i.e., scaffolding hypothesis) and/or whether the experience with symbolic number processing refines the ANS (i.e., refinement hypothesis). To this aim, 38 children solved a dot comparison task inside the scanner when they were approximately 10-years old (Time 1) and once again approximately 2 years later (Time 2). To study the scaffolding hypothesis, a regression analysis was carried out by entering ANS acuity at T1 as the predictor and symbolic math performance at T2 as the dependent measure. Symbolic math performance, visuospatial WM and full IQ (all at T1) were entered as covariates of no interest. In order to study the refinement hypothesis, the regression analysis included symbolic math performance at T1 as the predictor and ANS acuity at T2 as the dependent measure, while ANS acuity, visuospatial WM and full IQ (all at T1) were entered as covariates of no interest. Our results supported the refinement hypothesis, by finding that the higher the initial level of symbolic math performance, the greater the intraparietal...Continue Reading

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Citations

Mar 6, 2019·Scientific Data·Macarena Suárez-PellicioniJames R Booth
Sep 25, 2019·Annals of the New York Academy of Sciences·Eric D Wilkey, Daniel Ansari
Aug 21, 2020·Child Development·Jinjing Jenny WangLisa Feigenson
Jun 13, 2020·Frontiers in Human Neuroscience·Macarena Suárez-PellicioniJames R Booth
Jul 7, 2020·Cognition·Rachel C TomlinsonElizabeth M Brannon
May 7, 2021·Cognitive, Affective & Behavioral Neuroscience·Macarena Suárez-PellicioniJames R Booth
Aug 6, 2021·Journal of Experimental Child Psychology·Xiangzi OuyangQiusi Zhang
Jan 9, 2022·Behavioral and Brain Functions : BBF·Dazhi ChengXinlin Zhou

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