Evidence for Specificity of Motor Impairments in Catching and Balance in Children with Autism / Katarina AMENT in Journal of Autism and Developmental Disorders, 45-3 (March 2015)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 45-3 (March 2015) . - p.742-751 Titre : Evidence for Specificity of Motor Impairments in Catching and Balance in Children with Autism Type de document : Texte imprimé et/ou numérique Auteurs : Katarina AMENT, Auteur ; Amanda MEJIA, Auteur ; Rebecca BUHLMAN, Auteur ; Shannon ERKLIN, Auteur ; Brian S. CAFFO, Auteur ; Stewart MOSTOFSKY, Auteur ; Ericka WODKA, Auteur Article en page(s) : p.742-751 Langues : Anglais (eng) Mots-clés : Autism  Attention-deficit/hyperactivity disorder  Motor impairment  Specificity Index. décimale : PER Périodiques Résumé : To evaluate evidence for motor impairment specificity in autism spectrum disorder (ASD) and attention deficit/hyperactivity disorder (ADHD). Children completed performance-based assessment of motor functioning (Movement Assessment Battery for Children: MABC-2). Logistic regression models were used to predict group membership. In the models comparing typically developing and developmental disability (DD), all three MABC subscale scores were significantly negatively associated with having a DD. In the models comparing ADHD and ASD, catching and static balance items were associated with ASD group membership, with a 1 point decrease in performance increasing odds of ASD by 36 and 39 %, respectively. Impairments in motor skills requiring the coupling of visual and temporal feedback to guide and adjust movement appear specifically deficient in ASD. En ligne : http://dx.doi.org/10.1007/s10803-014-2229-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=258 [article] Evidence for Specificity of Motor Impairments in Catching and Balance in Children with Autism [Texte imprimé et/ou numérique] / Katarina AMENT, Auteur ; Amanda MEJIA, Auteur ; Rebecca BUHLMAN, Auteur ; Shannon ERKLIN, Auteur ; Brian S. CAFFO, Auteur ; Stewart MOSTOFSKY, Auteur ; Ericka WODKA, Auteur . - p.742-751. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 45-3 (March 2015) . - p.742-751 Mots-clés : Autism  Attention-deficit/hyperactivity disorder  Motor impairment  Specificity Index. décimale : PER Périodiques Résumé : To evaluate evidence for motor impairment specificity in autism spectrum disorder (ASD) and attention deficit/hyperactivity disorder (ADHD). Children completed performance-based assessment of motor functioning (Movement Assessment Battery for Children: MABC-2). Logistic regression models were used to predict group membership. In the models comparing typically developing and developmental disability (DD), all three MABC subscale scores were significantly negatively associated with having a DD. In the models comparing ADHD and ASD, catching and static balance items were associated with ASD group membership, with a 1 point decrease in performance increasing odds of ASD by 36 and 39 %, respectively. Impairments in motor skills requiring the coupling of visual and temporal feedback to guide and adjust movement appear specifically deficient in ASD. En ligne : http://dx.doi.org/10.1007/s10803-014-2229-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=258

Left-Hemispheric Microstructural Abnormalities in Children With High-Functioning Autism Spectrum Disorder / Daniel PETERSON in Autism Research, 8-1 (February 2015)  

Public ISBD [article]  inAutism Research > 8-1 (February 2015) . - p.61-72 Titre : Left-Hemispheric Microstructural Abnormalities in Children With High-Functioning Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Daniel PETERSON, Auteur ; Rajneesh MAHAJAN, Auteur ; Deana CROCETTI, Auteur ; Amanda MEJIA, Auteur ; Stewart MOSTOFSKY, Auteur Article en page(s) : p.61-72 Langues : Anglais (eng) Mots-clés : diffusion tensor imaging (DTI)  neuroimaging  laterality  white matter Index. décimale : PER Périodiques Résumé : Current theories of the neurobiological basis of autism spectrum disorder (ASD) posit an altered pattern of connectivity in large-scale brain networks. Here we used diffusion tensor imaging to investigate the microstructural properties of the white matter (WM) that mediates interregional connectivity in 36 high-functioning children with ASD (HF-ASD) as compared with 37 controls. By employing an atlas-based analysis using large deformation diffeometric morphic mapping registration, a widespread but left-lateralized pattern of abnormalities was revealed. The mean diffusivity (MD) of water in the WM of HF-ASD children was significantly elevated throughout the left hemisphere, particularly in the outer-zone cortical WM. Across diagnostic groups, there was a significant effect of age on left-hemisphere MD, with a similar reduction in MD during childhood in both typically developing and HF-ASD children. The increased MD in children with HF-ASD suggests hypomyelination and may reflect increased short-range cortico-cortical connections subsequent to early WM overgrowth. These findings also highlight left-hemispheric connectivity as relevant to the pathophysiology of ASD and indicate that the spatial distribution of microstructural abnormalities in HF-ASD is widespread and left-lateralized. This altered left-hemispheric connectivity may contribute to deficits in communication and praxis observed in ASD. Autism Res 2015, 8: 61–72. En ligne : http://dx.doi.org/10.1002/aur.1413 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=256 [article] Left-Hemispheric Microstructural Abnormalities in Children With High-Functioning Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Daniel PETERSON, Auteur ; Rajneesh MAHAJAN, Auteur ; Deana CROCETTI, Auteur ; Amanda MEJIA, Auteur ; Stewart MOSTOFSKY, Auteur . - p.61-72. Langues : Anglais (eng) in Autism Research > 8-1 (February 2015) . - p.61-72 Mots-clés : diffusion tensor imaging (DTI)  neuroimaging  laterality  white matter Index. décimale : PER Périodiques Résumé : Current theories of the neurobiological basis of autism spectrum disorder (ASD) posit an altered pattern of connectivity in large-scale brain networks. Here we used diffusion tensor imaging to investigate the microstructural properties of the white matter (WM) that mediates interregional connectivity in 36 high-functioning children with ASD (HF-ASD) as compared with 37 controls. By employing an atlas-based analysis using large deformation diffeometric morphic mapping registration, a widespread but left-lateralized pattern of abnormalities was revealed. The mean diffusivity (MD) of water in the WM of HF-ASD children was significantly elevated throughout the left hemisphere, particularly in the outer-zone cortical WM. Across diagnostic groups, there was a significant effect of age on left-hemisphere MD, with a similar reduction in MD during childhood in both typically developing and HF-ASD children. The increased MD in children with HF-ASD suggests hypomyelination and may reflect increased short-range cortico-cortical connections subsequent to early WM overgrowth. These findings also highlight left-hemispheric connectivity as relevant to the pathophysiology of ASD and indicate that the spatial distribution of microstructural abnormalities in HF-ASD is widespread and left-lateralized. This altered left-hemispheric connectivity may contribute to deficits in communication and praxis observed in ASD. Autism Res 2015, 8: 61–72. En ligne : http://dx.doi.org/10.1002/aur.1413 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=256

Measuring dyspraxia in autism using a five-minute praxis exam / Ashley DE MARCHENA in Research in Autism Spectrum Disorders, 106 (August 2023)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 106 (August 2023) . - 102200 Titre : Measuring dyspraxia in autism using a five-minute praxis exam Type de document : Texte imprimé et/ou numérique Auteurs : Ashley DE MARCHENA, Auteur ; Casey J. ZAMPELLA, Auteur ; Zachary DRAVIS, Auteur ; Juhi PANDEY, Auteur ; Stewart MOSTOFSKY, Auteur ; Robert T. SCHULTZ, Auteur Année de publication : 2023 Article en page(s) : 102200 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder  Praxis  Motor skills  Nonverbal communication  Imitation  Adaptive behavior skills Index. décimale : PER Périodiques Résumé : Background Difficulties with praxis, the ability to perform learned skilled movements, have been robustly demonstrated in autism spectrum disorder (autism). However, praxis assessment is not routinely included in autism characterization batteries, in part because it is traditionally time consuming to administer and score. We test whether dyspraxia in autism can be captured with a brief measure. Method Youth with autism (n = 41) and matched typically developing controls (n = 32), aged 8-16 years, completed a 5-min praxis battery. The 19-item battery included four subtests: gesture to command, tool use, familiar imitation, and meaningless imitation. Video recordings were coded for error types and compared to participant characterization variables. Results Consistent with research using a lengthy battery, autistic youth made more errors overall, with a large effect size. Groups demonstrated similar distributions of error types, suggesting that dyspraxia in autism is not limited to a particular error form. In the autism group, praxis was associated with adaptive functioning, but not autism traits. Conclusions A shortened battery is sufficiently sensitive to praxis differences between autistic and typically developing youth, increasing the feasibility of including praxis within clinical assessments or larger research batteries aimed at testing relationships with downstream skills. En ligne : https://doi.org/10.1016/j.rasd.2023.102200 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=509 [article] Measuring dyspraxia in autism using a five-minute praxis exam [Texte imprimé et/ou numérique] / Ashley DE MARCHENA, Auteur ; Casey J. ZAMPELLA, Auteur ; Zachary DRAVIS, Auteur ; Juhi PANDEY, Auteur ; Stewart MOSTOFSKY, Auteur ; Robert T. SCHULTZ, Auteur . - 2023 . - 102200. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 106 (August 2023) . - 102200 Mots-clés : Autism spectrum disorder  Praxis  Motor skills  Nonverbal communication  Imitation  Adaptive behavior skills Index. décimale : PER Périodiques Résumé : Background Difficulties with praxis, the ability to perform learned skilled movements, have been robustly demonstrated in autism spectrum disorder (autism). However, praxis assessment is not routinely included in autism characterization batteries, in part because it is traditionally time consuming to administer and score. We test whether dyspraxia in autism can be captured with a brief measure. Method Youth with autism (n = 41) and matched typically developing controls (n = 32), aged 8-16 years, completed a 5-min praxis battery. The 19-item battery included four subtests: gesture to command, tool use, familiar imitation, and meaningless imitation. Video recordings were coded for error types and compared to participant characterization variables. Results Consistent with research using a lengthy battery, autistic youth made more errors overall, with a large effect size. Groups demonstrated similar distributions of error types, suggesting that dyspraxia in autism is not limited to a particular error form. In the autism group, praxis was associated with adaptive functioning, but not autism traits. Conclusions A shortened battery is sufficiently sensitive to praxis differences between autistic and typically developing youth, increasing the feasibility of including praxis within clinical assessments or larger research batteries aimed at testing relationships with downstream skills. En ligne : https://doi.org/10.1016/j.rasd.2023.102200 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=509

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