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Détail de l'auteur
Auteur Laurent MOTTRON |
Documents disponibles écrits par cet auteur (59)
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Cognitive Differences in Pictorial Reasoning Between High-Functioning Autism and Asperger’s Syndrome / Chérif P. SAHYOUN in Journal of Autism and Developmental Disorders, 39-7 (July 2009)
[article]
Titre : Cognitive Differences in Pictorial Reasoning Between High-Functioning Autism and Asperger’s Syndrome Type de document : Texte imprimé et/ou numérique Auteurs : Chérif P. SAHYOUN, Auteur ; Laurent MOTTRON, Auteur ; Isabelle SOULIERES, Auteur ; John W. BELLIVEAU, Auteur ; Maria MODY, Auteur Année de publication : 2009 Article en page(s) : p.1014-1023 Langues : Anglais (eng) Mots-clés : High-functioning-autism Asperger’s-syndrome Reasoning Pictures Language Visuospatial Index. décimale : PER Périodiques Résumé : We investigated linguistic and visuospatial processing during pictorial reasoning in high-functioning autism (HFA), Asperger’s syndrome (ASP), and age and IQ-matched typically developing participants (CTRL), using three conditions designed to differentially engage linguistic mediation or visuospatial processing (visuospatial, V; semantic, S; visuospatial + semantic, V + S). The three groups did not differ in accuracy, but showed different response time profiles. ASP and CTRL participants were fastest on V + S, amenable to both linguistic and nonlinguistic mediation, whereas HFA participants were equally fast on V and V + S, where visuospatial strategies were available, and slowest on S. HFA participants appeared to favor visuospatial over linguistic mediation. The results support the use of linguistic versus visuospatial tasks for characterizing subtypes on the autism spectrum. En ligne : http://dx.doi.org/10.1007/s10803-009-0712-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=769
in Journal of Autism and Developmental Disorders > 39-7 (July 2009) . - p.1014-1023[article] Cognitive Differences in Pictorial Reasoning Between High-Functioning Autism and Asperger’s Syndrome [Texte imprimé et/ou numérique] / Chérif P. SAHYOUN, Auteur ; Laurent MOTTRON, Auteur ; Isabelle SOULIERES, Auteur ; John W. BELLIVEAU, Auteur ; Maria MODY, Auteur . - 2009 . - p.1014-1023.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 39-7 (July 2009) . - p.1014-1023
Mots-clés : High-functioning-autism Asperger’s-syndrome Reasoning Pictures Language Visuospatial Index. décimale : PER Périodiques Résumé : We investigated linguistic and visuospatial processing during pictorial reasoning in high-functioning autism (HFA), Asperger’s syndrome (ASP), and age and IQ-matched typically developing participants (CTRL), using three conditions designed to differentially engage linguistic mediation or visuospatial processing (visuospatial, V; semantic, S; visuospatial + semantic, V + S). The three groups did not differ in accuracy, but showed different response time profiles. ASP and CTRL participants were fastest on V + S, amenable to both linguistic and nonlinguistic mediation, whereas HFA participants were equally fast on V and V + S, where visuospatial strategies were available, and slowest on S. HFA participants appeared to favor visuospatial over linguistic mediation. The results support the use of linguistic versus visuospatial tasks for characterizing subtypes on the autism spectrum. En ligne : http://dx.doi.org/10.1007/s10803-009-0712-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=769 Comparing Motor Skills in Autism Spectrum Individuals With and Without Speech Delay / Elise B. BARBEAU in Autism Research, 8-6 (December 2015)
[article]
Titre : Comparing Motor Skills in Autism Spectrum Individuals With and Without Speech Delay Type de document : Texte imprimé et/ou numérique Auteurs : Elise B. BARBEAU, Auteur ; Andrée-Anne S. MEILLEUR, Auteur ; Thomas A. ZEFFIRO, Auteur ; Laurent MOTTRON, Auteur Article en page(s) : p.682-693 Langues : Anglais (eng) Mots-clés : autism spectrum Asperger syndrome motor skills motor control coordination speech onset delay Index. décimale : PER Périodiques Résumé : Movement atypicalities in speed, coordination, posture, and gait have been observed across the autism spectrum (AS) and atypicalities in coordination are more commonly observed in AS individuals without delayed speech (DSM-IV Asperger) than in those with atypical or delayed speech onset. However, few studies have provided quantitative data to support these mostly clinical observations. Here, we compared perceptual and motor performance between 30 typically developing and AS individuals (21 with speech delay and 18 without speech delay) to examine the associations between limb movement control and atypical speech development. Groups were matched for age, intelligence, and sex. The experimental design included: an inspection time task, which measures visual processing speed; the Purdue Pegboard, which measures finger dexterity, bimanual performance, and hand-eye coordination; the Annett Peg Moving Task, which measures unimanual goal-directed arm movement; and a simple reaction time task. We used analysis of covariance to investigate group differences in task performance and linear regression models to explore potential associations between intelligence, language skills, simple reaction time, and visually guided movement performance. AS participants without speech delay performed slower than typical participants in the Purdue Pegboard subtests. AS participants without speech delay showed poorer bimanual coordination than those with speech delay. Visual processing speed was slightly faster in both AS groups than in the typical group. Altogether, these results suggest that AS individuals with and without speech delay differ in visually guided and visually triggered behavior and show that early language skills are associated with slower movement in simple and complex motor tasks. Autism Res 2015, 8: 682–693. © 2015 The Authors Autism Research published by Wiley Periodicals, Inc. on behalf of International Society for Autism Research En ligne : http://dx.doi.org/10.1002/aur.1483 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=278
in Autism Research > 8-6 (December 2015) . - p.682-693[article] Comparing Motor Skills in Autism Spectrum Individuals With and Without Speech Delay [Texte imprimé et/ou numérique] / Elise B. BARBEAU, Auteur ; Andrée-Anne S. MEILLEUR, Auteur ; Thomas A. ZEFFIRO, Auteur ; Laurent MOTTRON, Auteur . - p.682-693.
Langues : Anglais (eng)
in Autism Research > 8-6 (December 2015) . - p.682-693
Mots-clés : autism spectrum Asperger syndrome motor skills motor control coordination speech onset delay Index. décimale : PER Périodiques Résumé : Movement atypicalities in speed, coordination, posture, and gait have been observed across the autism spectrum (AS) and atypicalities in coordination are more commonly observed in AS individuals without delayed speech (DSM-IV Asperger) than in those with atypical or delayed speech onset. However, few studies have provided quantitative data to support these mostly clinical observations. Here, we compared perceptual and motor performance between 30 typically developing and AS individuals (21 with speech delay and 18 without speech delay) to examine the associations between limb movement control and atypical speech development. Groups were matched for age, intelligence, and sex. The experimental design included: an inspection time task, which measures visual processing speed; the Purdue Pegboard, which measures finger dexterity, bimanual performance, and hand-eye coordination; the Annett Peg Moving Task, which measures unimanual goal-directed arm movement; and a simple reaction time task. We used analysis of covariance to investigate group differences in task performance and linear regression models to explore potential associations between intelligence, language skills, simple reaction time, and visually guided movement performance. AS participants without speech delay performed slower than typical participants in the Purdue Pegboard subtests. AS participants without speech delay showed poorer bimanual coordination than those with speech delay. Visual processing speed was slightly faster in both AS groups than in the typical group. Altogether, these results suggest that AS individuals with and without speech delay differ in visually guided and visually triggered behavior and show that early language skills are associated with slower movement in simple and complex motor tasks. Autism Res 2015, 8: 682–693. © 2015 The Authors Autism Research published by Wiley Periodicals, Inc. on behalf of International Society for Autism Research En ligne : http://dx.doi.org/10.1002/aur.1483 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=278
[article]
Titre : Developmental Changes of Autistic Symptoms Type de document : Texte imprimé et/ou numérique Auteurs : Shirley FECTEAU, Auteur ; Laurent MOTTRON, Auteur ; Claude BERTHIAUME, Auteur ; Jacob A. BURACK, Auteur Article en page(s) : p.255-268 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : The study examined developmental changes in autistic symptoms retrospectively in a sample of 28 verbal children and adolescents with autism. Individuals with Asperger syndrome, PDD-NOS, and related medical conditions were not included in the study. We compared autistic symptoms present at the retrospective assessment and during the 4- to 5-year age period using the ADI-R. Our findings revealed a significant improvement in the three domains relevant for the diagnosis of autism, independent of age or IQ level. Improvement occurred in more symptoms from the social than the communication domain, and for more symptoms from the latter than the restricted interest and repetitive behavior domains. The finding that improvement was not linked to level of functioning and was found in individuals still positive for a diagnosis of autism suggests that improvement belongs to the ‘natural history’ of the handicap. En ligne : http://dx.doi.org/10.1177/1362361303007003003 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=210
in Autism > 7-3 (September 2003) . - p.255-268[article] Developmental Changes of Autistic Symptoms [Texte imprimé et/ou numérique] / Shirley FECTEAU, Auteur ; Laurent MOTTRON, Auteur ; Claude BERTHIAUME, Auteur ; Jacob A. BURACK, Auteur . - p.255-268.
Langues : Anglais (eng)
in Autism > 7-3 (September 2003) . - p.255-268
Index. décimale : PER Périodiques Résumé : The study examined developmental changes in autistic symptoms retrospectively in a sample of 28 verbal children and adolescents with autism. Individuals with Asperger syndrome, PDD-NOS, and related medical conditions were not included in the study. We compared autistic symptoms present at the retrospective assessment and during the 4- to 5-year age period using the ADI-R. Our findings revealed a significant improvement in the three domains relevant for the diagnosis of autism, independent of age or IQ level. Improvement occurred in more symptoms from the social than the communication domain, and for more symptoms from the latter than the restricted interest and repetitive behavior domains. The finding that improvement was not linked to level of functioning and was found in individuals still positive for a diagnosis of autism suggests that improvement belongs to the ‘natural history’ of the handicap. En ligne : http://dx.doi.org/10.1177/1362361303007003003 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=210 A Developmental Perspective of Global and Local Visual Perception in Autism Spectrum Disorder / J. GUY in Journal of Autism and Developmental Disorders, 49-7 (July 2019)
[article]
Titre : A Developmental Perspective of Global and Local Visual Perception in Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : J. GUY, Auteur ; Laurent MOTTRON, Auteur ; Claude BERTHIAUME, Auteur ; Armando BERTONE, Auteur Article en page(s) : p.2706-2720 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder Development Global and local processing Interference Perception Vision Index. décimale : PER Périodiques Résumé : Individuals with autism spectrum disorder (ASD) demonstrate superior performances on visuo-spatial tasks emphasizing local information processing; however, findings from studies involving hierarchical stimuli are inconsistent. Wide age ranges and group means complicate their interpretability. Children and adolescents with and without ASD completed a Navon task wherein they identified global and local stimuli composed of either consistent or inconsistent letters. Trajectories of reaction time in global and local conditions were similar within and between groups when consistent and inconsistent stimuli were considered together, but the effect of local-to-global interference was significantly higher in participants with than without ASD. Age was not a significant predictor of local-to-global interference, suggesting that this effect emerges in childhood and persists throughout adolescence in ASD. En ligne : http://dx.doi.org/10.1007/s10803-016-2834-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=401
in Journal of Autism and Developmental Disorders > 49-7 (July 2019) . - p.2706-2720[article] A Developmental Perspective of Global and Local Visual Perception in Autism Spectrum Disorder [Texte imprimé et/ou numérique] / J. GUY, Auteur ; Laurent MOTTRON, Auteur ; Claude BERTHIAUME, Auteur ; Armando BERTONE, Auteur . - p.2706-2720.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 49-7 (July 2019) . - p.2706-2720
Mots-clés : Autism spectrum disorder Development Global and local processing Interference Perception Vision Index. décimale : PER Périodiques Résumé : Individuals with autism spectrum disorder (ASD) demonstrate superior performances on visuo-spatial tasks emphasizing local information processing; however, findings from studies involving hierarchical stimuli are inconsistent. Wide age ranges and group means complicate their interpretability. Children and adolescents with and without ASD completed a Navon task wherein they identified global and local stimuli composed of either consistent or inconsistent letters. Trajectories of reaction time in global and local conditions were similar within and between groups when consistent and inconsistent stimuli were considered together, but the effect of local-to-global interference was significantly higher in participants with than without ASD. Age was not a significant predictor of local-to-global interference, suggesting that this effect emerges in childhood and persists throughout adolescence in ASD. En ligne : http://dx.doi.org/10.1007/s10803-016-2834-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=401 Le diagnostic des troubles envahissants du développement sans déficience et son impact sur l’obtention des services scolaires et sociaux au Québec / Laurent MOTTRON in Santé Mentale au Québec, 23-1 (Printemps 1998)
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Titre : Le diagnostic des troubles envahissants du développement sans déficience et son impact sur l’obtention des services scolaires et sociaux au Québec Type de document : Texte imprimé et/ou numérique Auteurs : Laurent MOTTRON, Auteur ; Pierre LAPOINTE, Auteur ; Francine FOURNIER, Auteur Année de publication : 2007 Article en page(s) : p.96-114 Langues : Français (fre) Index. décimale : AUT-E AUT-E - L'Autisme - Accompagnement et Qualité de Vie Résumé : Les troubles envahissants du développement sans déficience constituent une nouvelle entité clinique comprenant les personnes autistes et porteuses d’un trouble envahissant non spécifié sans déficience, ainsi que les personnes porteuses d’un syndrome d’Asperger. Ce groupe est de distinction récente et encore problématique à plusieurs égards. Notre article fait le point sur les relations historiques, théoriques et cliniques que les troubles envahissants du développement sans déficience entretiennent avec les syndromes limitrophes. Nous montrons ensuite les conséquences de l’indétermination concernant ces patients sur les mesures d’assistance disponibles pour eux.
Nous concluons sur l’utilité de considérer indépendamment le diagnostic, la description des signes, le niveau intellectuel et l’adaptation psychosociale dans les décisions éducatives et psychosociales concernant les troubles envahissants du développement sans déficience.En ligne : http://dx.doi.org/10.7202/032439ar Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=217
in Santé Mentale au Québec > 23-1 (Printemps 1998) . - p.96-114[article] Le diagnostic des troubles envahissants du développement sans déficience et son impact sur l’obtention des services scolaires et sociaux au Québec [Texte imprimé et/ou numérique] / Laurent MOTTRON, Auteur ; Pierre LAPOINTE, Auteur ; Francine FOURNIER, Auteur . - 2007 . - p.96-114.
Langues : Français (fre)
in Santé Mentale au Québec > 23-1 (Printemps 1998) . - p.96-114
Index. décimale : AUT-E AUT-E - L'Autisme - Accompagnement et Qualité de Vie Résumé : Les troubles envahissants du développement sans déficience constituent une nouvelle entité clinique comprenant les personnes autistes et porteuses d’un trouble envahissant non spécifié sans déficience, ainsi que les personnes porteuses d’un syndrome d’Asperger. Ce groupe est de distinction récente et encore problématique à plusieurs égards. Notre article fait le point sur les relations historiques, théoriques et cliniques que les troubles envahissants du développement sans déficience entretiennent avec les syndromes limitrophes. Nous montrons ensuite les conséquences de l’indétermination concernant ces patients sur les mesures d’assistance disponibles pour eux.
Nous concluons sur l’utilité de considérer indépendamment le diagnostic, la description des signes, le niveau intellectuel et l’adaptation psychosociale dans les décisions éducatives et psychosociales concernant les troubles envahissants du développement sans déficience.En ligne : http://dx.doi.org/10.7202/032439ar Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=217 A different memory: are distinctions drawn from the study of nonautistic memory appropriate to describe memory in autism? / Laurent MOTTRON
PermalinkDifferent Verbal Learning Strategies in Autism Spectrum Disorder: Evidence from the Rey Auditory Verbal Learning Test / Dermot M. BOWLER in Journal of Autism and Developmental Disorders, 39-6 (June 2009)
PermalinkDo Autistics Have Cognitive Strengths? Should ASC Be Defined as Disorders? / Michelle DAWSON
PermalinkDream Content Analysis in Persons with an Autism Spectrum Disorder / Anne-Marie DAOUST in Journal of Autism and Developmental Disorders, 38-4 (April 2008)
PermalinkDysfonctions développementales et acquises du corps calleux / Elise B. BARBEAU
PermalinkEnhanced connectivity between visual cortex and other regions of the brain in autism: a REM sleep EEG coherence study / Cathy LEVEILLE in Autism Research, 3-5 (October 2010)
PermalinkEnhanced Perceptual Functioning in the Development of Autism / Laurent MOTTRON
PermalinkERP Correlates of Recognition Memory in Autism Spectrum Disorder / Esha MASSAND in Journal of Autism and Developmental Disorders, 43-9 (September 2013)
PermalinkEvaluation des capacités d'imagerie mentale visuelle dans l'autisme / C. BLED in Bulletin Scientifique de l'arapi (Le), 51 (2023/1)
PermalinkFar visual acuity is unremarkable in autism: Do we need to focus on crowding? / Luc KEITA in Autism Research, 3-6 (December 2010)
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