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Brief Report: Non-right-Handedness Within the Autism Spectrum Disorder / Anne LANGSETH RYSSTAD in Journal of Autism and Developmental Disorders, 46-3 (March 2016)
[article]
Titre : Brief Report: Non-right-Handedness Within the Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Anne LANGSETH RYSSTAD, Auteur ; Arve VORLAND PEDERSEN, Auteur Article en page(s) : p.1110-1117 Langues : Anglais (eng) Mots-clés : Autism Autism spectrum disorder Non-right-handedness Left-handedness Handedness Lateralization Index. décimale : PER Périodiques Résumé : A larger distribution of left-handedness in the population of Autism Spectrum Disorder has been repeatedly reported. Despite of this, the sample sizes in the individual study’s are too small for any generalization to be made. Using both description-based and citation-based searches, the present review combines the individual results in order to examine whether non-right-handedness is a general trait of the autism spectrum disorder. With a relatively large combined sample size (N = 497), it can be concluded that the distribution of non-right-handedness is significantly greater within the autism spectrum disorder population, compared with the population in general. En ligne : http://dx.doi.org/10.1007/s10803-015-2631-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=282
in Journal of Autism and Developmental Disorders > 46-3 (March 2016) . - p.1110-1117[article] Brief Report: Non-right-Handedness Within the Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Anne LANGSETH RYSSTAD, Auteur ; Arve VORLAND PEDERSEN, Auteur . - p.1110-1117.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 46-3 (March 2016) . - p.1110-1117
Mots-clés : Autism Autism spectrum disorder Non-right-handedness Left-handedness Handedness Lateralization Index. décimale : PER Périodiques Résumé : A larger distribution of left-handedness in the population of Autism Spectrum Disorder has been repeatedly reported. Despite of this, the sample sizes in the individual study’s are too small for any generalization to be made. Using both description-based and citation-based searches, the present review combines the individual results in order to examine whether non-right-handedness is a general trait of the autism spectrum disorder. With a relatively large combined sample size (N = 497), it can be concluded that the distribution of non-right-handedness is significantly greater within the autism spectrum disorder population, compared with the population in general. En ligne : http://dx.doi.org/10.1007/s10803-015-2631-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=282 Lateralization of ERPs to speech and handedness in the early development of Autism Spectrum Disorder / K. H. FINCH in Journal of Neurodevelopmental Disorders, 9-1 (December 2017)
[article]
Titre : Lateralization of ERPs to speech and handedness in the early development of Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : K. H. FINCH, Auteur ; A. M. SEERY, Auteur ; Meagan R. TALBOTT, Auteur ; C. A. NELSON, Auteur ; Helen TAGER-FLUSBERG, Auteur Article en page(s) : p.4 Langues : Anglais (eng) Mots-clés : Autism spectrum disorders Event-related potentials Handedness Lateralization Speech processing Index. décimale : PER Périodiques Résumé : BACKGROUND: Language is a highly lateralized function, with typically developing individuals showing left hemispheric specialization. Individuals with autism spectrum disorder (ASD) often show reduced or reversed hemispheric lateralization in response to language. However, it is unclear when this difference emerges and whether or not it can serve as an early ASD biomarker. Additionally, atypical language lateralization is not specific to ASD as it is also seen more frequently in individuals with mixed- and left-handedness. Here, we examined early asymmetry patterns measured through neural responses to speech sounds at 12 months and behavioral observations of handedness at 36 months in children with and without ASD. METHODS: Three different groups of children participated in the study: low-risk controls (LRC), high risk for ASD (HRA; infants with older sibling with ASD) without ASD, and HRA infants who later receive a diagnosis of ASD (ASD). Event-related potentials (ERPs) to speech sounds were recorded at 12 months. Utilizing a novel observational approach, handedness was measured by hand preference on a variety of behaviors at 36 months. RESULTS: At 12 months, lateralization patterns of ERPs to speech stimuli differed across the groups with the ASD group showing reversed lateralization compared to the LRC group. At 36 months, factor analysis of behavioral observations of hand preferences indicated a one-factor model with medium to high factor loadings. A composite handedness score was derived; no group differences were observed. There was no association between lateralization to speech at 12 months and handedness at 36 months in the LRC and HRA groups. However, children with ASD did show an association such that infants with lateralization patterns more similar to the LRC group at 12 months were stronger right-handers at 36 months. CONCLUSIONS: These results highlight early developmental patterns that might be specific to ASD, including a potential early biomarker of reversed lateralization to speech stimuli at 12 months, and a relation between behavioral and neural asymmetries. Future investigations of early asymmetry patterns, especially atypical hemispheric specialization, may be informative in the early identification of ASD. En ligne : http://dx.doi.org/10.1186/s11689-017-9185-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=349
in Journal of Neurodevelopmental Disorders > 9-1 (December 2017) . - p.4[article] Lateralization of ERPs to speech and handedness in the early development of Autism Spectrum Disorder [Texte imprimé et/ou numérique] / K. H. FINCH, Auteur ; A. M. SEERY, Auteur ; Meagan R. TALBOTT, Auteur ; C. A. NELSON, Auteur ; Helen TAGER-FLUSBERG, Auteur . - p.4.
Langues : Anglais (eng)
in Journal of Neurodevelopmental Disorders > 9-1 (December 2017) . - p.4
Mots-clés : Autism spectrum disorders Event-related potentials Handedness Lateralization Speech processing Index. décimale : PER Périodiques Résumé : BACKGROUND: Language is a highly lateralized function, with typically developing individuals showing left hemispheric specialization. Individuals with autism spectrum disorder (ASD) often show reduced or reversed hemispheric lateralization in response to language. However, it is unclear when this difference emerges and whether or not it can serve as an early ASD biomarker. Additionally, atypical language lateralization is not specific to ASD as it is also seen more frequently in individuals with mixed- and left-handedness. Here, we examined early asymmetry patterns measured through neural responses to speech sounds at 12 months and behavioral observations of handedness at 36 months in children with and without ASD. METHODS: Three different groups of children participated in the study: low-risk controls (LRC), high risk for ASD (HRA; infants with older sibling with ASD) without ASD, and HRA infants who later receive a diagnosis of ASD (ASD). Event-related potentials (ERPs) to speech sounds were recorded at 12 months. Utilizing a novel observational approach, handedness was measured by hand preference on a variety of behaviors at 36 months. RESULTS: At 12 months, lateralization patterns of ERPs to speech stimuli differed across the groups with the ASD group showing reversed lateralization compared to the LRC group. At 36 months, factor analysis of behavioral observations of hand preferences indicated a one-factor model with medium to high factor loadings. A composite handedness score was derived; no group differences were observed. There was no association between lateralization to speech at 12 months and handedness at 36 months in the LRC and HRA groups. However, children with ASD did show an association such that infants with lateralization patterns more similar to the LRC group at 12 months were stronger right-handers at 36 months. CONCLUSIONS: These results highlight early developmental patterns that might be specific to ASD, including a potential early biomarker of reversed lateralization to speech stimuli at 12 months, and a relation between behavioral and neural asymmetries. Future investigations of early asymmetry patterns, especially atypical hemispheric specialization, may be informative in the early identification of ASD. En ligne : http://dx.doi.org/10.1186/s11689-017-9185-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=349 Psychological Correlates of Handedness and Corpus Callosum Asymmetry in Autism: The left Hemisphere Dysfunction Theory Revisited / Dorothea L. FLORIS in Journal of Autism and Developmental Disorders, 43-8 (August 2013)
[article]
Titre : Psychological Correlates of Handedness and Corpus Callosum Asymmetry in Autism: The left Hemisphere Dysfunction Theory Revisited Type de document : Texte imprimé et/ou numérique Auteurs : Dorothea L. FLORIS, Auteur ; Lindsay R. CHURA, Auteur ; Rosemary J. HOLT, Auteur ; John SUCKLING, Auteur ; Edward T. BULLMORE, Auteur ; Simon BARON-COHEN, Auteur ; Michael D. SPENCER, Auteur Article en page(s) : p.1758-1772 Langues : Anglais (eng) Mots-clés : Autism Corpus callosum Handedness Asymmetry Lateralization Broader autism phenotype Index. décimale : PER Périodiques Résumé : Rightward cerebral lateralization has been suggested to be involved in the neuropathology of autism spectrum conditions. We investigated functional and neuroanatomical asymmetry, in terms of handedness and corpus callosum measurements in male adolescents with autism, their unaffected siblings and controls, and their associations with executive dysfunction and symptom severity. Adolescents with autism did not differ from controls in functional asymmetry, but neuroanatomically showed the expected pattern of stronger rightward lateralization in the posterior and anterior midbody based on their hand-preference. Measures of symptom severity were related to rightward asymmetry in three subregions (splenium, posterior midbody and rostral body). We found the opposite pattern for the isthmus and rostrum with better cognitive and less severe clinical scores associated with rightward lateralization. En ligne : http://dx.doi.org/10.1007/s10803-012-1720-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=205
in Journal of Autism and Developmental Disorders > 43-8 (August 2013) . - p.1758-1772[article] Psychological Correlates of Handedness and Corpus Callosum Asymmetry in Autism: The left Hemisphere Dysfunction Theory Revisited [Texte imprimé et/ou numérique] / Dorothea L. FLORIS, Auteur ; Lindsay R. CHURA, Auteur ; Rosemary J. HOLT, Auteur ; John SUCKLING, Auteur ; Edward T. BULLMORE, Auteur ; Simon BARON-COHEN, Auteur ; Michael D. SPENCER, Auteur . - p.1758-1772.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 43-8 (August 2013) . - p.1758-1772
Mots-clés : Autism Corpus callosum Handedness Asymmetry Lateralization Broader autism phenotype Index. décimale : PER Périodiques Résumé : Rightward cerebral lateralization has been suggested to be involved in the neuropathology of autism spectrum conditions. We investigated functional and neuroanatomical asymmetry, in terms of handedness and corpus callosum measurements in male adolescents with autism, their unaffected siblings and controls, and their associations with executive dysfunction and symptom severity. Adolescents with autism did not differ from controls in functional asymmetry, but neuroanatomically showed the expected pattern of stronger rightward lateralization in the posterior and anterior midbody based on their hand-preference. Measures of symptom severity were related to rightward asymmetry in three subregions (splenium, posterior midbody and rostral body). We found the opposite pattern for the isthmus and rostrum with better cognitive and less severe clinical scores associated with rightward lateralization. En ligne : http://dx.doi.org/10.1007/s10803-012-1720-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=205