Dolscheid, Sarah, Ostrowski, Lea and Verlage, Heiko . Only Approximately the Same: Approximate Number Skills in Typically Developing Children and Children with Down Syndrome. Int. J. Disabil. Dev. Educ.. ABINGDON: ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD. ISSN 1465-346X

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Abstract

The approximate number system (ANS) is foundational to numerical cognition. Whereas some studies hint at intact ANS skills in individuals with Down syndrome (DS), others report impaired ANS abilities. To reconcile these discrepant findings, we investigated ANS skills of children with DS and typically developing (TD) children in a non-symbolic number comparison task. Children had to indicate which of two characters possessed more dots. The two sets of dots differed by ratios of 1:2 to 4:5. While overall DS and TD participants' performance was comparable, accuracy levels differed for the two groups depending on the ratio presented. Both groups performed similarly for 'easier' ratios, however, TD children outperformed children with DS when they had to discriminate 'harder' ratios. Children with DS may thus face specific problems when discriminating ratios that are more demanding. The deviating ANS skills could potentially be related to problems with other symbolic maths abilities.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Dolscheid, SarahUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ostrowski, LeaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Verlage, HeikoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-319224
DOI: 10.1080/1034912X.2020.1821871
Journal or Publication Title: Int. J. Disabil. Dev. Educ.
Publisher: ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
Place of Publication: ABINGDON
ISSN: 1465-346X
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
INDIVIDUAL-DIFFERENCES; SYSTEM; NUMEROSITY; KNOWLEDGE; ACUITYMultiple languages
Education, Special; RehabilitationMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/31922

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