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The foundations of mathematical development in Williams syndrome and Down syndrome

Van Herwegen, J; Ranzato, E; Karmiloff-Smith, A; Simms, V; (2020) The foundations of mathematical development in Williams syndrome and Down syndrome. Journal of Applied Research Intellectual Disabilities 10.1111/jar.12730. (In press).

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Abstract

BACKGROUND: Studies in Down syndrome (DS) and Williams syndrome (WS) have suggested that mathematical abilities are impaired. However, it is unclear which domain-general or domain-specific abilities impact on mathematical development in these developmental disorders. METHOD: The current study examined the foundations of mathematical development across participants with WS (n = 24) and DS (n = 26) compared to typically developing (TD) children (n = 26) in relation to domain-general (i.e., general intelligence and visuospatial abilities) and domain-specific abilities (non-symbolic and symbolic number abilities). RESULTS: Developmental trajectories showed that mathematical abilities were delayed in line with overall mental age in DS and WS. Whilst visuospatial abilities predicted performance for DS and TD participants, this was not the case for the WS group, instead Approximate Number Sense abilities predicted mathematical development. CONCLUSIONS: These findings suggest that those with DS and WS may benefit from different mathematical intervention programmes.

Type: Article
Title: The foundations of mathematical development in Williams syndrome and Down syndrome
Location: England
DOI: 10.1111/jar.12730
Publisher version: https://doi.org/10.1111/jar.12730
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Down syndrome, Williams syndrome, approximate number sense, mathematics, symbolic
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Education
UCL > Provost and Vice Provost Offices > School of Education > UCL Institute of Education
UCL > Provost and Vice Provost Offices > School of Education > UCL Institute of Education > IOE - Learning and Leadership
URI: https://discovery.ucl.ac.uk/id/eprint/10096606
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