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Neuropsychological profile of people with Williams Syndrome (WS)

Abstract : Williams syndrome (WS) is a genetic neurodevelopmental disorder (prevalence close to 1 in 20,000-30,000 births) resulting from the deletion of 16-25 genes on the long arm of Chromosome 7 (Scherer & Osborne, 2006). Individuals with WS have an intelligence quotient of 40-70 (Howlin, Davies, & Udwin, 1998). Theirs is a unique neuropsychological profile, characterized by an apparent dissociation between cognition and language, as language is relatively well preserved, compared with other cognitive skills (Karmiloff-Smith, et al., 2004; Martens, Wilson, & Reutens, 2008). However, a more complex profile is now emerging, with good lexical, short-term memory (especially auditory-verbal) and face processing skills, but visuospatial (especially local processing of information), executive (planning and inhibition), memory (working memory and long-term) and attentional deficits (Bellugi, Lichtenberger, Jones, Lai, & George, 2000; Schmitt, Eliez, Warsofsky, Bellugi, & Reiss, 2001; Fayasse & Thibaut, 2003; Menghini, Addona, Costanzo, & Vicari, 2010; Costanzo et al., 2013; Dessalegn, Landau & Rapp, 2013).
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Contributor : Laurence Leroux <>
Submitted on : Wednesday, September 25, 2019 - 12:10:26 PM
Last modification on : Tuesday, January 7, 2020 - 6:14:03 PM


  • HAL Id : hal-02296571, version 1


Anne-Sophie Pezzino, Nathalie Marec-Breton, Agnès Lacroix. Neuropsychological profile of people with Williams Syndrome (WS). Williams Syndrome : Features, Management and Research. Publisher: Nova Publisher Edition, Nova Publisher Edition, 2018. ⟨hal-02296571⟩



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