Growth of Expressive Syntax in Children With Fragile X Syndrome
| Autor: | Amy Esplund, Rouzana Komesidou, Kandace Fleming, Nancy C. Brady, Steven F. Warren |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Male
030506 rehabilitation Linguistics and Language Predictor variables Language Development Language and Linguistics Developmental psychology 03 medical and health sciences Speech and Hearing Nonverbal communication Sex Factors Intellectual disability medicine Humans Language Development Disorders 0501 psychology and cognitive sciences Autistic Disorder Language 05 social sciences Linguistics Cognition medicine.disease Language acquisition Syntax Fragile X syndrome Child Preschool Fragile X Syndrome Linear Models Autism Female 0305 other medical science Psychology 050104 developmental & child psychology Cognitive psychology |
| Zdroj: | Journal of Speech, Language, and Hearing Research. 60:422-434 |
| ISSN: | 1558-9102 1092-4388 |
| DOI: | 10.1044/2016_jslhr-l-15-0360 |
| Popis: | Purpose This research explored syntactic growth in children with fragile X syndrome (FXS) over a 5-year period, and variability in growth in relation to autism symptoms, nonverbal cognition, maternal responsivity, and gender. Method Language samples at 4 time points from 39 children with FXS, 31 boys and 8 girls, were analyzed using the Index of Productive Syntax (Scarborough, 1990) and mean length of utterance (Brown, 1973). The degree of autism symptoms was evaluated using the Childhood Autism Rating Scale (Schopler, Reichler, & Renner, 1988) at the first time point. Maternal responsivity estimates were averaged across time points. Results Children with FXS showed significant syntactic growth over time and a significant plateau (quadratic trend) in the later observations. Children who exhibited more autism symptoms at Time 1 had significantly lower syntactic abilities over time than children who exhibited fewer autism symptoms. Nonverbal cognition significantly predicted mean length of utterance scores but not Index of Productive Syntax scores. Maternal responsivity was not a significant predictor of syntactic outcomes. Girls with FXS generally demonstrated better expressive syntax than boys with FXS with notable individual differences. Conclusion Despite significant growth over time, expressive syntax is a vulnerable domain for children with FXS, especially for those with severe autism symptoms. Clinical implications arising from the current findings are discussed. |
| Databáze: | OpenAIRE |
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