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Direct linkMejias, Sandrine; Gregoire, Jacques; Noel, Marie-Pascale – Learning and Individual Differences, 2012
It has been hypothesized that developmental dyscalculia (DD) is either due to a defect of the approximate number system (ANS) or to an impaired access between that system and symbolic numbers. Several studies have tested these two hypotheses in children with DD but none has dealt with adults who had experienced DD as children. This study aimed to…
Descriptors: Number Systems, Computation, Mathematics, Adults
Mazzocco, Michele M. M.; Feigenson, Lisa; Halberda, Justin – Child Development, 2011
Many children have significant mathematical learning disabilities (MLD, or dyscalculia) despite adequate schooling. The current study hypothesizes that MLD partly results from a deficiency in the Approximate Number System (ANS) that supports nonverbal numerical representations across species and throughout development. In this study of 71 ninth…
Descriptors: Learning Disabilities, Mathematics Achievement, Academic Achievement, Number Systems
