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Evidence for three subtypes of repetitive behavior in autism that differ in familiality and association with other symptoms / Kristen S. L. LAM in Journal of Child Psychology and Psychiatry, 49-11 (November 2008)
[article]
Titre : Evidence for three subtypes of repetitive behavior in autism that differ in familiality and association with other symptoms Type de document : Texte imprimé et/ou numérique Auteurs : Kristen S. L. LAM, Auteur ; Joseph PIVEN, Auteur ; James W. BODFISH, Auteur Année de publication : 2008 Article en page(s) : p.1193-1200 Langues : Anglais (eng) Mots-clés : Autism repetitive-behavior factor-analysis Autism-Diagnostic-Interview-Revised Index. décimale : PER Périodiques Résumé : Background: Restricted repetitive behaviors (RRBs) are a core feature of autism and consist of a variety of behaviors, ranging from motor stereotypies to complex circumscribed interests. The objective of the current study was to examine the structure of RRBs in autism using relevant items from the Autism Diagnostic Interview-Revised in a sample of 316 individuals with autistic disorder.
Methods/Results: Using exploratory factor analysis, three distinct factors were identified: Repetitive Motor Behaviors (RMB), Insistence on Sameness (IS), and Circumscribed Interests (CI). RMB were found to be associated with a variety of subject characteristics such as IQ, age, social/communication impairments, and the presence of regression. IS was associated with social and communication impairments whereas CI appeared to be independent of subject characteristics, suggesting CI may be particularly useful in subsetting samples. Based on sib-pair correlations, IS and CI (but not RMB) appear to be familial. Analysis of the data at the case level suggests that the presence of multiple forms of RRB in an individual is associated with more impairment in the social and communication domains, suggesting a more severe presentation of autistic disorder.
Conclusions: There appears to be considerable structure within repetitive behavior in autism. The finding that these behaviors are differentially related to subject characteristics and familiality adds to their validity.En ligne : http://dx.doi.org/10.1111/j.1469-7610.2008.01944.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=633
in Journal of Child Psychology and Psychiatry > 49-11 (November 2008) . - p.1193-1200[article] Evidence for three subtypes of repetitive behavior in autism that differ in familiality and association with other symptoms [Texte imprimé et/ou numérique] / Kristen S. L. LAM, Auteur ; Joseph PIVEN, Auteur ; James W. BODFISH, Auteur . - 2008 . - p.1193-1200.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 49-11 (November 2008) . - p.1193-1200
Mots-clés : Autism repetitive-behavior factor-analysis Autism-Diagnostic-Interview-Revised Index. décimale : PER Périodiques Résumé : Background: Restricted repetitive behaviors (RRBs) are a core feature of autism and consist of a variety of behaviors, ranging from motor stereotypies to complex circumscribed interests. The objective of the current study was to examine the structure of RRBs in autism using relevant items from the Autism Diagnostic Interview-Revised in a sample of 316 individuals with autistic disorder.
Methods/Results: Using exploratory factor analysis, three distinct factors were identified: Repetitive Motor Behaviors (RMB), Insistence on Sameness (IS), and Circumscribed Interests (CI). RMB were found to be associated with a variety of subject characteristics such as IQ, age, social/communication impairments, and the presence of regression. IS was associated with social and communication impairments whereas CI appeared to be independent of subject characteristics, suggesting CI may be particularly useful in subsetting samples. Based on sib-pair correlations, IS and CI (but not RMB) appear to be familial. Analysis of the data at the case level suggests that the presence of multiple forms of RRB in an individual is associated with more impairment in the social and communication domains, suggesting a more severe presentation of autistic disorder.
Conclusions: There appears to be considerable structure within repetitive behavior in autism. The finding that these behaviors are differentially related to subject characteristics and familiality adds to their validity.En ligne : http://dx.doi.org/10.1111/j.1469-7610.2008.01944.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=633