Developmental dyscalculia: A deficit in the approximate number system or an access deficit?
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- 作者：Linda Olsson ; linda.m.olsson@liu.se" class="auth_mail" title="E-mail the corresponding author ; Rickard Ö ; stergren rickard.ostergren@liu.se" class="auth_mail" title="E-mail the corresponding author ; Ulf Trä ; ff ulf.traff@liu.se" class="auth_mail" title="E-mail the corresponding author
- 关键词：Dyscalculia ; Approximate number system (ANS) ; Object tracking system (OTS) ; Access deficit ; Non-symbolic and symbolic processing ; Subitizing
- 刊名：Cognitive Development
- 出版年：2016
- 出版时间：July-September 2016
- 年：2016
- 卷：39
- 期：Complete
- 页码：154-167
- 全文大小：503 K
文摘
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We sought to identify developmental dyscalculia’s (DD) underlying deficits.
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Identified DD children were compared to individually matched controls.
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DD children showed impairment on both symbolic and non-symbolic tasks.
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Most of the results were in support of the defective ANS and/or OTS hypothesis.
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Effect sizes were greater for symbolic tasks than non-symbolic.