Complex syntax in autism spectrum disorders: a study of relative clauses.
Background The few studies that have evaluated syntax in autism spectrum disorder (ASD) have yielded conflicting findings: some suggest that once matched on mental age, ASD and typically developing controls do not differ for grammar, while others report that morphosyntactic deficits are independent...
| Publicado en: | International Journal of Language & Communication Disorders (John Wiley & Sons, Inc.) Vol. 50; no. 2; pp. 260 - 268 |
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| Autores principales: | , , , , |
| Formato: | Journal Article |
| Publicado: |
John Wiley & Sons, Inc.
Mar2015
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=101349421&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 101349421 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14606984 NRNM jtl: International Journal of Language & Communication Disorders (John Wiley & Sons, Inc.) issn: 14606984 maglogo: N pubinfo: dt: Mar2015 vid: 50 iid: 2 pid: 52269 pub: John Wiley & Sons, Inc. artinfo: ui: 101349421 103767891 10.1111/1460-6984.12130 101349421 ppf: 260 ppct: 8 formats: tig: atl: Complex syntax in autism spectrum disorders: a study of relative clauses. aug: au: Durrleman, Stephanie Hippolyte, Loyse Zufferey, Sandrine Iglesias, Katia Hadjikhani, Nouchine affil: Institute of Cognitive Science, CNRS Lyon, France sug: subj: Autism Spectrum Disorder Complications Grammar Communication Skills Human Adolescence Adult Descriptive Statistics Intelligence Tests Male Female Mann-Whitney U Test Post Hoc Analysis Fisher's Exact Test Linear Regression Data Analysis Software Spearman's Rank Correlation Coefficient Funding Source Adolescent: 13-18 years Adult: 19-44 years Male Female ab: Background The few studies that have evaluated syntax in autism spectrum disorder (ASD) have yielded conflicting findings: some suggest that once matched on mental age, ASD and typically developing controls do not differ for grammar, while others report that morphosyntactic deficits are independent of cognitive skills in ASD. There is a need for a better understanding of syntax in ASD and its relation to, or dissociation from, nonverbal abilities. Aims Syntax in ASD was assessed by evaluating subject and object relative clause comprehension in adolescents and adults diagnosed with ASD with a performance IQ within the normal range, and with or without a history of language delay. Methods & Procedures Twenty-eight participants with ASD (mean age 21.8) and 28 age-matched controls (mean age 22.07) were required to point to a character designated by relative clauses that varied in syntactic complexity. Outcomes & Results Scores indicate that participants with ASD regardless of the language development history perform significantly worse than age-matched controls with object relative clauses. In addition, participants with ASD with a history of language delay (diagnosed with high-functioning autism in the DSM-IV-TR) perform worse on subject relatives than ASD participants without language delay (diagnosed with Asperger syndrome in the DSM-IV-TR), suggesting that these two groups do not have equivalent linguistic abilities. Performance IQ has a positive impact on the success of the task for the population with ASD. Conclusions & Implications This study reveals subtle grammatical difficulties remaining in adult individuals with ASD within normal IQ range as compared with age-matched peers. Even in the absence of a history of language delay in childhood, the results suggest that a slight deficit may nevertheless be present and go undetected by standardized language assessments. Both groups with and without language delay have a similar global performance on relative clause comprehension; however, the study also indicates that the participants with reported language delay show more difficulty with subject relatives than the participants without language delay, suggesting the presence of differences in linguistic abilities between these subgroups of ASD. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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