18 recherche sur le mot-clé 'motor control'

Motor planning and control in autism. A kinematic analysis of preschool children / I.R.C.C.S. “EUGENIO MEDEA” in Research in Autism Spectrum Disorders, 5-2 (April-June 2011)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 5-2 (April-June 2011) . - p.834-842 Titre : Motor planning and control in autism. A kinematic analysis of preschool children Type de document : Texte imprimé et/ou numérique Auteurs : I.R.C.C.S. “EUGENIO MEDEA”, Auteur Année de publication : 2011 Article en page(s) : p.834-842 Langues : Anglais (eng) Mots-clés : Autism  Movement  Motor planning  Motor control Index. décimale : PER Périodiques Résumé : Kinematic recordings in a reach and drop task were compared between 12 preschool children with autism without mental retardation and 12 gender and age-matched normally developing children. Our aim was to investigate whether motor anomalies in autism may depend more on a planning ability dysfunction or on a motor control deficit. Planning and control processes were separately investigated by examining kinematic recordings divided into primary movement- (planning-based) and corrective submovement- (control-based) phases. Despite longer movement durations, participants with autism were as accurate in their movements as normally developing children were and showed a preserved movement structure. No differences were observed for the initial movement phases for hand velocity, accuracy and inter-trial variability. Our main finding was that of a group difference in proximity of the target, at transition from planning-based to control-based movement guidance. At primary movement conclusion, the normally developing children had already reduced velocity and begun orienting their hands for ball drop. Also, they tended to terminate movements within the same movement unit that had transported the hand into the target box. Compared to this group, participants with autism reached this stage with less preparation: their speed was significantly higher, wrist inclination reduced and they showed further movement units after entering the box over the vast majority of trials. These additional movement units were presumed to represent late control-based spatial adjustments. Hence, our data support the hypothesis that children with autism have a greater need for corrective submovements. We provide evidence that motor anomalies in autism might be determined either by a disruption in planning-control integration, or by a limited planning process capacity, as participants with autism might have been able to plan only the very beginning of the movement, leaving its final phases to further planning on the fly, with important consequences on movement time optimization. En ligne : http://dx.doi.org/10.1016/j.rasd.2010.09.013 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=114 [article] Motor planning and control in autism. A kinematic analysis of preschool children [Texte imprimé et/ou numérique] / I.R.C.C.S. “EUGENIO MEDEA”, Auteur . - 2011 . - p.834-842. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 5-2 (April-June 2011) . - p.834-842 Mots-clés : Autism  Movement  Motor planning  Motor control Index. décimale : PER Périodiques Résumé : Kinematic recordings in a reach and drop task were compared between 12 preschool children with autism without mental retardation and 12 gender and age-matched normally developing children. Our aim was to investigate whether motor anomalies in autism may depend more on a planning ability dysfunction or on a motor control deficit. Planning and control processes were separately investigated by examining kinematic recordings divided into primary movement- (planning-based) and corrective submovement- (control-based) phases. Despite longer movement durations, participants with autism were as accurate in their movements as normally developing children were and showed a preserved movement structure. No differences were observed for the initial movement phases for hand velocity, accuracy and inter-trial variability. Our main finding was that of a group difference in proximity of the target, at transition from planning-based to control-based movement guidance. At primary movement conclusion, the normally developing children had already reduced velocity and begun orienting their hands for ball drop. Also, they tended to terminate movements within the same movement unit that had transported the hand into the target box. Compared to this group, participants with autism reached this stage with less preparation: their speed was significantly higher, wrist inclination reduced and they showed further movement units after entering the box over the vast majority of trials. These additional movement units were presumed to represent late control-based spatial adjustments. Hence, our data support the hypothesis that children with autism have a greater need for corrective submovements. We provide evidence that motor anomalies in autism might be determined either by a disruption in planning-control integration, or by a limited planning process capacity, as participants with autism might have been able to plan only the very beginning of the movement, leaving its final phases to further planning on the fly, with important consequences on movement time optimization. En ligne : http://dx.doi.org/10.1016/j.rasd.2010.09.013 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=114

Comparing Motor Skills in Autism Spectrum Individuals With and Without Speech Delay / Elise B. BARBEAU in Autism Research, 8-6 (December 2015)  

Public ISBD [article]  inAutism Research > 8-6 (December 2015) . - p.682-693 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 [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

Motor Abilities in Autism: A Review Using a Computational Context / Emma GOWEN in Journal of Autism and Developmental Disorders, 43-2 (February 2013)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 43-2 (February 2013) . - p.323-344 Titre : Motor Abilities in Autism: A Review Using a Computational Context Type de document : Texte imprimé et/ou numérique Auteurs : Emma GOWEN, Auteur ; Antonia HAMILTON, Auteur Année de publication : 2013 Article en page(s) : p.323-344 Langues : (Eng) Mots-clés : Autism  Motor control  Sensorimotor integration  Prediction  Motor learning Index. décimale : PER Périodiques Résumé : Altered motor behaviour is commonly reported in Autism Spectrum Disorder, but the aetiology remains unclear. Here, we have taken a computational approach in order to break down motor control into different components and review the functioning of each process. Our findings suggest abnormalities in two areas'poor integration of information for efficient motor planning, and increased variability in basic sensory inputs and motor outputs. In contrast, motor learning processes are relatively intact and there is inconsistent evidence for deficits in predictive control. We suggest future work on motor abilities in autism should focus on sensorimotor noise and on higher level motor planning, as these seem to have a significant role in causing motor difficulties for autistic individuals. En ligne : http://dx.doi.org/10.1007/s10803-012-1574-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=188 [article] Motor Abilities in Autism: A Review Using a Computational Context [Texte imprimé et/ou numérique] / Emma GOWEN, Auteur ; Antonia HAMILTON, Auteur . - 2013 . - p.323-344. Langues : (Eng) in Journal of Autism and Developmental Disorders > 43-2 (February 2013) . - p.323-344 Mots-clés : Autism  Motor control  Sensorimotor integration  Prediction  Motor learning Index. décimale : PER Périodiques Résumé : Altered motor behaviour is commonly reported in Autism Spectrum Disorder, but the aetiology remains unclear. Here, we have taken a computational approach in order to break down motor control into different components and review the functioning of each process. Our findings suggest abnormalities in two areas'poor integration of information for efficient motor planning, and increased variability in basic sensory inputs and motor outputs. In contrast, motor learning processes are relatively intact and there is inconsistent evidence for deficits in predictive control. We suggest future work on motor abilities in autism should focus on sensorimotor noise and on higher level motor planning, as these seem to have a significant role in causing motor difficulties for autistic individuals. En ligne : http://dx.doi.org/10.1007/s10803-012-1574-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=188

Motor function and perception in children with neuropsychiatric and conduct problems: results from a population based twin study / P. GUSTAFSSON in Journal of Neurodevelopmental Disorders, 6-1 (December 2014)  

Public ISBD [article]  inJournal of Neurodevelopmental Disorders > 6-1 (December 2014) . - p.11 Titre : Motor function and perception in children with neuropsychiatric and conduct problems: results from a population based twin study Type de document : Texte imprimé et/ou numérique Auteurs : P. GUSTAFSSON, Auteur ; N. KEREKES, Auteur ; Henrik ANCKARSATER, Auteur ; P. LICHTENSTEIN, Auteur ; C. GILLBERG, Auteur ; M. RASTAM, Auteur Article en page(s) : p.11 Langues : Anglais (eng) Mots-clés : A-tac  Attention-Deficit/Hyperactivity Disorder  Autism Spectrum Disorder  Conduct Disorder  Motor control  Perception Index. décimale : PER Périodiques Résumé : BACKGROUND: Children with early symptomatic psychiatric disorders such as Attention-Deficit/Hyperactivity Disorder (ADHD) and Autism Spectrum Disorder (ASD) have been found to have high rates of motor and/or perception difficulties. However, there have been few large-scale studies reporting on the association between Conduct Disorder (CD) and motor/perception functions. The aim of the present study was to investigate how motor function and perception relate to measures of ADHD, ASD, and CD. METHODS: Parents of 16,994 Swedish twins (ages nine and twelve years) were interviewed using the Autism-Tics, ADHD and other Comorbidities inventory (A-TAC), which has been validated as a screening instrument for early onset child psychiatric disorders and symptoms. Associations between categorical variables of scoring above previously validated cut-off values for diagnosing ADHD, ASD, and CD on the one hand and motor and/or perception problems on the other hand were analysed using cross-tabulations, and the Fisher exact test. Associations between the continuous scores for ADHD, ASD, CD, and the subdomains Concentration/Attention, Impulsiveness/Activity, Flexibility, Social Interaction and Language, and the categorical factors age and gender, on the one hand, and the dependent dichotomic variables Motor control and Perception problems, on the other hand, were analysed using binary logistic regression in general estimated equation models. RESULTS: Male gender was associated with increased risk of Motor control and/or Perception problems. Children scoring above the cut-off for ADHD, ASD, and/or CD, but not those who were 'CD positive' but 'ADHD/ASD negative', had more Motor control and/or Perception problems, compared with children who were screen-negative for all three diagnoses. In the multivariable model, CD and Impulsiveness/Activity had no positive associations with Motor control and/or Perception problems. CONCLUSIONS: CD symptoms or problems with Impulsiveness/Activity were associated with Motor control or Perception problems only in the presence of ASD symptoms and/or symptoms of inattention. Our results indicate that children with CD but without ASD or inattention do not show a deviant development of motor and perceptual functions. Therefore, all children with CD should be examined concerning motor control and perception. If problems are present, a suspicion of ADHD and/or ASD should be raised. En ligne : http://dx.doi.org/10.1186/1866-1955-6-11 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=346 [article] Motor function and perception in children with neuropsychiatric and conduct problems: results from a population based twin study [Texte imprimé et/ou numérique] / P. GUSTAFSSON, Auteur ; N. KEREKES, Auteur ; Henrik ANCKARSATER, Auteur ; P. LICHTENSTEIN, Auteur ; C. GILLBERG, Auteur ; M. RASTAM, Auteur . - p.11. Langues : Anglais (eng) in Journal of Neurodevelopmental Disorders > 6-1 (December 2014) . - p.11 Mots-clés : A-tac  Attention-Deficit/Hyperactivity Disorder  Autism Spectrum Disorder  Conduct Disorder  Motor control  Perception Index. décimale : PER Périodiques Résumé : BACKGROUND: Children with early symptomatic psychiatric disorders such as Attention-Deficit/Hyperactivity Disorder (ADHD) and Autism Spectrum Disorder (ASD) have been found to have high rates of motor and/or perception difficulties. However, there have been few large-scale studies reporting on the association between Conduct Disorder (CD) and motor/perception functions. The aim of the present study was to investigate how motor function and perception relate to measures of ADHD, ASD, and CD. METHODS: Parents of 16,994 Swedish twins (ages nine and twelve years) were interviewed using the Autism-Tics, ADHD and other Comorbidities inventory (A-TAC), which has been validated as a screening instrument for early onset child psychiatric disorders and symptoms. Associations between categorical variables of scoring above previously validated cut-off values for diagnosing ADHD, ASD, and CD on the one hand and motor and/or perception problems on the other hand were analysed using cross-tabulations, and the Fisher exact test. Associations between the continuous scores for ADHD, ASD, CD, and the subdomains Concentration/Attention, Impulsiveness/Activity, Flexibility, Social Interaction and Language, and the categorical factors age and gender, on the one hand, and the dependent dichotomic variables Motor control and Perception problems, on the other hand, were analysed using binary logistic regression in general estimated equation models. RESULTS: Male gender was associated with increased risk of Motor control and/or Perception problems. Children scoring above the cut-off for ADHD, ASD, and/or CD, but not those who were 'CD positive' but 'ADHD/ASD negative', had more Motor control and/or Perception problems, compared with children who were screen-negative for all three diagnoses. In the multivariable model, CD and Impulsiveness/Activity had no positive associations with Motor control and/or Perception problems. CONCLUSIONS: CD symptoms or problems with Impulsiveness/Activity were associated with Motor control or Perception problems only in the presence of ASD symptoms and/or symptoms of inattention. Our results indicate that children with CD but without ASD or inattention do not show a deviant development of motor and perceptual functions. Therefore, all children with CD should be examined concerning motor control and perception. If problems are present, a suspicion of ADHD and/or ASD should be raised. En ligne : http://dx.doi.org/10.1186/1866-1955-6-11 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=346

Motor planning and End-state Comfort in Children with Autism Spectrum Disorders / Jessica L. SIMERMEYER in Autism - Open Access, 5-1 ([01/01/2015])  

Public ISBD [article]  inAutism - Open Access > 5-1 [01/01/2015] . - 4 p. Titre : Motor planning and End-state Comfort in Children with Autism Spectrum Disorders Type de document : Texte imprimé et/ou numérique Auteurs : Jessica L. SIMERMEYER, Auteur ; Caroline J KETCHAM, Auteur Article en page(s) : 4 p. Langues : Anglais (eng) Mots-clés : Motor control  Fine motor  Imitation  ASD Index. décimale : PER Périodiques Résumé : Autism Spectrum Disorders are a cluster of disorders that effect communication, behavior and social ability. The Centers for Disease Control and Prevention (CDC) recently released that Autism affects 1 in 88 U.S. children (2012). The increasing prevalence of Autism has led to an increase in the body of research regarding Autism, however, there has not been extensive investigation into how movement and motor skills may play a role in this population. Those that have looked into movement and Autism have found that children with Autism Spectrum Disorders may show impairments in motor planning and coordination. This study investigates motor planning and ability in children with Autism Spectrum Disorders through a battery of fine and gross motor tasks, as well as postural components through alteration of sensory input, in order to determine if their ability to plan and complete motor tasks differs from their typically developing peers. The study includes children with a diagnosis of an Autism Spectrum Disorder, as well as typically developing children, between the ages of 5 and 13. The battery of tasks consisted of a dial-turning task, “Simon-Says” imitation task, drawing task, and beading task. Results show that children with Autism Spectrum Disorders show greater variability in hand selection during the dial turning task and a tendency to plan movements that are not in accordance with end state comfort. In addition, those with an Autism Spectrum Disorder displayed decreased ability to correctly imitate movements, had lower scores on both the drawing and sticker tasks, and took longer to bead the bracelet than their neurotypical peers. En ligne : https://dx.doi.org/10.4172/2165-7890.1000138 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=409 [article] Motor planning and End-state Comfort in Children with Autism Spectrum Disorders [Texte imprimé et/ou numérique] / Jessica L. SIMERMEYER, Auteur ; Caroline J KETCHAM, Auteur . - 4 p. Langues : Anglais (eng) in Autism - Open Access > 5-1 [01/01/2015] . - 4 p. Mots-clés : Motor control  Fine motor  Imitation  ASD Index. décimale : PER Périodiques Résumé : Autism Spectrum Disorders are a cluster of disorders that effect communication, behavior and social ability. The Centers for Disease Control and Prevention (CDC) recently released that Autism affects 1 in 88 U.S. children (2012). The increasing prevalence of Autism has led to an increase in the body of research regarding Autism, however, there has not been extensive investigation into how movement and motor skills may play a role in this population. Those that have looked into movement and Autism have found that children with Autism Spectrum Disorders may show impairments in motor planning and coordination. This study investigates motor planning and ability in children with Autism Spectrum Disorders through a battery of fine and gross motor tasks, as well as postural components through alteration of sensory input, in order to determine if their ability to plan and complete motor tasks differs from their typically developing peers. The study includes children with a diagnosis of an Autism Spectrum Disorder, as well as typically developing children, between the ages of 5 and 13. The battery of tasks consisted of a dial-turning task, “Simon-Says” imitation task, drawing task, and beading task. Results show that children with Autism Spectrum Disorders show greater variability in hand selection during the dial turning task and a tendency to plan movements that are not in accordance with end state comfort. In addition, those with an Autism Spectrum Disorder displayed decreased ability to correctly imitate movements, had lower scores on both the drawing and sticker tasks, and took longer to bead the bracelet than their neurotypical peers. En ligne : https://dx.doi.org/10.4172/2165-7890.1000138 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=409

An Examination of Handedness and Footedness in Children with High Functioning Autism and Asperger Syndrome / R. MARKOULAKIS in Journal of Autism and Developmental Disorders, 42-10 (October 2012)  

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Exploring the Relationship between Prosodic Control and Social Competence in Children with and without Autism Spectrum Disorder / Nichole E. SCHEERER in Autism Research, 13-11 (November 2020)  

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Motor Skills in Children Aged 7–10 Years, Diagnosed with Autism Spectrum Disorder / Caroline P. WHYATT in Journal of Autism and Developmental Disorders, 42-9 (September 2012)  

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Temporal Coordination and Prosodic Structure in Autism Spectrum Disorder: Timing Across Speech and Non-speech Motor Domains / K. FRANICH in Journal of Autism and Developmental Disorders, 51-8 (August 2021)  

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Does Language Guide Behavior in Children with Autism? / Jennifer C. GIDLEY LARSON in Journal of Autism and Developmental Disorders, 44-9 (September 2014)  

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