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Weisman, O.; Feldman, R.; Burg-Malki, M.; Keren, M.; Geva, R.; Diesendruck, G.; Gothelf, D. – Journal of Intellectual Disability Research, 2017
Background: Numerous studies have assessed the socio-cognitive profile in Williams syndrome (WS) and, independently, in 22q11.2 deletion syndrome (22q11.2DS). Yet, a cross-syndrome comparison of these abilities between individuals with these two syndromes with known social deficits has not been conducted. Methods: Eighty-two children participated…
Descriptors: Comparative Analysis, Intellectual Disability, Intelligence Tests, Interpersonal Competence
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Fahim, C.; Yoon, U.; Nashaat, N. H.; Khalil, A. K.; El-Belbesy, M.; Mancini-Marie, A.; Evans, A. C.; Meguid, N. – Journal of Intellectual Disability Research, 2012
Background: Genetically Williams syndrome (WS) promises to provide essential insight into the pathophysiology of cortical development because its ~28 deleted genes are crucial for cortical neuronal migration and maturation. Phenotypically, WS is one of the most puzzling childhood neurodevelopmental disorders affecting most intellectual…
Descriptors: Attention Deficit Disorders, Intelligence Quotient, Genetics, Scientific Research
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Ross, Judith L.; Zeger, Martha P. D.; Kushner, Harvey; Zinn, Andrew R.; Roeltgen, David P. – Developmental Disabilities Research Reviews, 2009
Objective: The goal of this study was to contrast the cognitive phenotypes in boys with 47,XYY (XYY) karyotype and boys with 47,XXY karyotype [Klinefelter syndrome, (KS)], who share an extra copy of the X-Y pseudoautosomal region but differ in their dosage of strictly sex-linked genes. Methods: Neuropsychological evaluation of general cognitive…
Descriptors: Genetic Disorders, Males, Sex, Genetics
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Paterson, Sarah J.; Girelli, Luisa; Butterworth, Brian; Karmiloff-Smith, Annette – Journal of Child Psychology and Psychiatry, 2006
Background: Several theorists maintain that exact number abilities rely on language-relevant processes whereas approximate number calls on visuo-spatial skills. We chose two genetic disorders, Williams syndrome and Down's syndrome, which differ in their relative abilities in verbal versus spatial skills, to examine this hypothesis. Five…
Descriptors: Genetic Disorders, Mental Age, Age, Mental Retardation