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ERIC Number: EJ1037837
Record Type: Journal
Publication Date: 2013-Jul
Pages: 16
Abstractor: As Provided
Reference Count: 82
ISSN: ISSN-0162-3257
Investigating Word Learning in Fragile X Syndrome: A Fast-Mapping Study
McDuffie, Andrea; Kover, Sara T.; Hagerman, Randi; Abbeduto, Leonard
Journal of Autism and Developmental Disorders, v43 n7 p1676-1691 Jul 2013
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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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A