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Gepubliceerd in: Journal of Autism and Developmental Disorders 7/2013

01-07-2013 | Original Paper

Investigating Word Learning in Fragile X Syndrome: A Fast-Mapping Study

Auteurs: Andrea McDuffie, Sara T. Kover, Randi Hagerman, Leonard Abbeduto

Gepubliceerd in: Journal of Autism and Developmental Disorders | Uitgave 7/2013

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Abstract

Fast-mapping paradigms have not been used previously to examine the process of word learning in boys with fragile X syndrome (FXS), who are likely to have intellectual impairment, language delays, and symptoms of autism. In this study, a fast-mapping task was used to investigate associative word learning in 4- to 10-year-old boys with FXS relative to younger typically developing boys and age-matched boys with autism spectrum disorders (ASD). Task performance exceeded chance levels for all groups; however, boys with FXS outperformed boys with ASD, despite having lower levels of nonverbal cognition. Memory task demands significantly impacted performance only for boys with typical development. For boys with FXS or ASD, fast-mapping uniquely accounted for small but significant variance in concurrent levels of vocabulary comprehension as did chronological age and nonverbal IQ, but not autism severity. Understanding the fast-mapping process has implications for designing interventions to support word learning and language acquisition in these populations.
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Metagegevens
Titel
Investigating Word Learning in Fragile X Syndrome: A Fast-Mapping Study
Auteurs
Andrea McDuffie
Sara T. Kover
Randi Hagerman
Leonard Abbeduto
Publicatiedatum
01-07-2013
Uitgeverij
Springer US
Gepubliceerd in
Journal of Autism and Developmental Disorders / Uitgave 7/2013
Print ISSN: 0162-3257
Elektronisch ISSN: 1573-3432
DOI
https://doi.org/10.1007/s10803-012-1717-3