Cognitive, Environmental, and Linguistic Predictors of Syntax in Fragile X Syndrome and Down Syndrome.
Purpose: To examine which cognitive, environmental, and speech-language variables predict expressive syntax in boys with fragile X syndrome (FXS), boys with Down syndrome (DS), and typically developing (TD) boys, and whether predictive relationships differed by group. Method: We obtained Index of Pr...
| Published in: | Journal of Speech, Language & Hearing Research Vol. 55; no. 6; pp. 1600 - 1613 |
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| Main Authors: | , , , , |
| Format: | Article |
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American Speech-Language-Hearing Association
Dec2012
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=84534602&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 84534602 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 10924388 1SM jtl: Journal of Speech, Language & Hearing Research issn: 10924388 maglogo: N pubinfo: dt: Dec2012 vid: 55 iid: 6 pid: 42 pub: American Speech-Language-Hearing Association artinfo: ui: 84534602 10.1044/1092-4388(2012/10-0153) ppf: 1600 ppct: 13 formats: fmt: @attributes: type: P size: 285KB tig: atl: Cognitive, Environmental, and Linguistic Predictors of Syntax in Fragile X Syndrome and Down Syndrome. aug: au: Estigarribia, Bruno Martin, Gary E. Roberts, Joanne E. Oetting, Janna Loeb, Diane affil: University of North Carolina, Chapel Hill su: Cognition Ecology Comparative grammar Linguistics Memory Mothers Psychological tests Sound recordings Vocabulary Educational attainment Case-control method Fragile X syndrome Probability theory Research funding Scales (Weighing instruments) Speech evaluation Intelligibility of speech T-test (Statistics) Video recording Effect sizes (Statistics) Down syndrome Descriptive statistics sug: subj: Cognition Ecology Comparative grammar Linguistics Memory Mothers Psychological tests Sound recordings Vocabulary Educational attainment Case-control method All other general-purpose machinery manufacturing Scale and Balance Manufacturing Sound recording merchant wholesalers Integrated Record Production/Distribution Record Production Fragile X syndrome Probability theory Research funding Scales (Weighing instruments) Speech evaluation Intelligibility of speech T-test (Statistics) Video recording Effect sizes (Statistics) Down syndrome Descriptive statistics keyword: autism spectrum disorders fragile X syndrome modularity phonological working memory syntax autism spectrum disorders fragile X syndrome modularity phonological working memory syntax ab: Purpose: To examine which cognitive, environmental, and speech-language variables predict expressive syntax in boys with fragile X syndrome (FXS), boys with Down syndrome (DS), and typically developing (TD) boys, and whether predictive relationships differed by group. Method: We obtained Index of Productive Syntax (Scarborough, 1990) scores for 18 boys with FXS only, 20 boys with both FXS and an autism spectrum disorder, 27 boys with DS, and 25 younger TD boys of similar nonverbal mental age. Predictors included group (diagnosis), nonverbal cognition, phonological working memory (PWM), maternal education, speech intelligibility, and expressive vocabulary. The research questions were addressed via hierarchical linear regression. Results: Diagnostic group, nonverbal cognition, and PWM predicted 56% of the variance in syntactic ability, with approximately three-fourths of the predicted variance explained by group membership alone. The other factors did not contribute any additional significant variance in this final model. There was no evidence that predictor effects differed by group. Conclusions: Nonverbal cognition and PWM have an effect on expressive syntax beyond that of diagnostic group. These effects are estimated to be the same in boys with FXS, boys with DS, and TD boys. Explanations for residual variance and the relative role of different predictors are discussed. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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