Literaturnachweis - Detailanzeige
| Autor/inn/en | Mussolin, Christophe; Mejias, Sandrine; Noel, Marie-Pascale |
|---|---|
| Titel | Symbolic and Nonsymbolic Number Comparison in Children with and without Dyscalculia |
| Quelle | In: Cognition, 115 (2010) 1, S.10-25 (16 Seiten)Infoseite zur Zeitschrift
PDF als Volltext |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
| ISSN | 0010-0277 |
| DOI | 10.1016/j.cognition.2009.10.006 |
| Schlagwörter | Number Concepts; Arithmetic; Cognitive Processes; Children; Control Groups; Learning Disabilities; Mathematics Education; Comparative Analysis |
| Abstract | Developmental dyscalculia (DD) is a pervasive difficulty affecting number processing and arithmetic. It is encountered in around 6% of school-aged children. While previous studies have mainly focused on general cognitive functions, the present paper aims to further investigate the hypothesis of a specific numerical deficit in dyscalculia. The performance of 10- and 11-year-old children with DD characterised by a weakness in arithmetic facts retrieval and age-matched control children was compared on various number comparison tasks. Participants were asked to compare a quantity presented in either a symbolic (Arabic numerals, number words, canonical dots patterns) or a nonsymbolic format (noncanonical dots patterns, and random sticks patterns) to the reference quantity 5. DD children showed a greater numerical distance effect than control children, irrespective of the number format. This favours a deficit in the specialised cognitive system underlying the processing of number magnitude in children with DD. Results are discussed in terms of access and representation deficit hypotheses. (Contains 5 tables and 2 figures.) (As Provided). |
| Anmerkungen | Elsevier. 6277 Sea Harbor Drive, Orlando, FL 32887-4800. Tel: 877-839-7126; Tel: 407-345-4020; Fax: 407-363-1354; e-mail: usjcs@elsevier.com; Web site: http://www.elsevier.com |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
| Update | 2017/4/10 |
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