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Modeling the Contribution of Genetic Variation to Cognitive Gains Following Training with a Machine Learning Approach
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Musso, Mariel F.; Cómbita, Lina M.; Cascallar, Eduardo C.; Rueda, M. Rosario – Mind, Brain, and Education, 2022
The objective of this research was to develop robust predictive models of the gains in working memory (WM) and fluid intelligence (Gf) following executive attention training in children, using genetic markers, gender, and age variables. We explore the influence of genetic variables on individual differences in susceptibility to intervention.…
Descriptors: Genetics, Artificial Intelligence, Gender Differences, Age Differences
Teasing Apart Explanations of a Developmental Delay in Binding: Experimental Evidence from the Comparison of SLI and Williams Syndrome
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Perovic, Alexandra; Wexler, Ken – Language Acquisition: A Journal of Developmental Linguistics, 2018
This study investigates the knowledge of binding in 21 English-speaking children with SLI, aged 6;08-16;05, compared to 21 children with WS, language- and age-matched, and 21 language-matched control children, aged 4-7;10. Our results demonstrate no difficulties in the interpretation of reflexive or personal pronouns in SLI, revealing an intact…
Descriptors: Speech Impairments, Language Impairments, Genetic Disorders, Children
Performance on the Kaufman Brief Intelligence Test-2 by Children with Williams Syndrome
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Pitts, C. Holley; Mervis, Carolyn B. – American Journal on Intellectual and Developmental Disabilities, 2016
We describe the performance of 292 4- to 17-year-olds with Williams syndrome (WS) on the Kaufman Brief Intelligence Test-2 (KBIT-2; Kaufman & Kaufman, 2004). Mean IQ Composite, Verbal standard score (SS), and Nonverbal SS were in the borderline range relative to the general population, with variability similar to the general population.…
Descriptors: Intelligence Tests, Genetic Disorders, Intelligence Quotient, Children
Longitudinal Trajectories of Intellectual and Adaptive Functioning in Adolescents and Adults with Williams Syndrome
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Fisher, M. H.; Lense, M. D.; Dykens, E. M. – Journal of Intellectual Disability Research, 2016
Background: Williams syndrome (WS) is associated with a distinct cognitive-behavioural phenotype including mild to moderate intellectual disability, visual-spatial deficits, hypersociability, inattention and anxiety. Researchers typically characterise samples of individuals with WS by their intellectual functioning and adaptive behaviour. Because…
Descriptors: Genetic Disorders, Intellectual Disability, Cognitive Development, Adolescents
Constraints on Multiple Object Tracking in Williams Syndrome: How Atypical Development Can Inform Theories of Visual Processing
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Ferrara, Katrina; Hoffman, James E.; O'Hearn, Kirsten; Landau, Barbara – Journal of Cognition and Development, 2016
The ability to track moving objects is a crucial skill for performance in everyday spatial tasks. The tracking mechanism depends on representation of moving items as coherent entities, which follow the spatiotemporal constraints of objects in the world. In the present experiment, participants tracked 1 to 4 targets in a display of 8 identical…
Descriptors: Eye Movements, Visual Stimuli, Intellectual Disability, Adults
A Structural Analysis of Executive Functions and Socioeconomic Status in School-Age Children: Cognitive Factors as Effect Mediators
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Aran-Filippetti, Vanessa; Richaud de Minzi, Maria Cristina – Journal of Genetic Psychology, 2012
Socioeconomic status (SES) is a well-known predictor of cognitive achievement and executive functioning, although the underlying cognitive mediating processes remain unclear. The authors analyze the association between different socioeconomic indicators and the executive functions (EF) of schoolchildren and the possible cognitive mediating factors…
Descriptors: Academic Achievement, Intelligence Tests, Intelligence, Intervention
Longitudinal Assessment of Intellectual Abilities of Children with Williams Syndrome: Multilevel Modeling of Performance on the Kaufman Brief Intelligence Test--Second Edition
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Mervis, Carolyn B.; Kistler, Doris J.; John, Angela E.; Morris, Colleen A. – American Journal on Intellectual and Developmental Disabilities, 2012
Multilevel modeling was used to address the longitudinal stability of standard scores (SSs) measuring intellectual ability for children with Williams syndrome (WS). Participants were 40 children with genetically confirmed WS who completed the Kaufman Brief Intelligence Test--Second Edition (KBIT-2; A. S. Kaufman & N. L. Kaufman, 2004) 4-7…
Descriptors: Congenital Impairments, Genetic Disorders, Mental Retardation, Intelligence Quotient