21 recherche sur le mot-clé 'motor'

Motor Memory Deficits Contribute to Motor Impairments in Autism Spectrum Disorder / K. A. NEELY in Journal of Autism and Developmental Disorders, 49-7 (July 2019)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 49-7 (July 2019) . - p.2675-2684 Titre : Motor Memory Deficits Contribute to Motor Impairments in Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : K. A. NEELY, Auteur ; S. MOHANTY, Auteur ; Lauren M. SCHMITT, Auteur ; Z. WANG, Auteur ; J. A. SWEENEY, Auteur ; M. W. MOSCONI, Auteur Article en page(s) : p.2675-2684 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder  Motor  Precision grip  Visual feedback  Working memory Index. décimale : PER Périodiques Résumé : Sensorimotor abnormalities are common in individuals with autism spectrum disorder (ASD); however, the processes underlying these deficits remain unclear. This study examined force production with and without visual feedback to determine if individuals with ASD can utilize internal representations to guide sustained force. Individuals with ASD showed a faster rate of force decay in the absence of visual feedback. Comparison of force output and tests of social and verbal abilities demonstrated a link between motor memory impairment and social and verbal deficits in individuals with ASD. This finding suggests that deficits in storage or retrieval of motor memories contribute to sensorimotor deficits and implicates frontoparietal networks involved in short-term consolidation of action dynamics used to optimize ongoing motor output. En ligne : http://dx.doi.org/10.1007/s10803-016-2806-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=401 [article] Motor Memory Deficits Contribute to Motor Impairments in Autism Spectrum Disorder [Texte imprimé et/ou numérique] / K. A. NEELY, Auteur ; S. MOHANTY, Auteur ; Lauren M. SCHMITT, Auteur ; Z. WANG, Auteur ; J. A. SWEENEY, Auteur ; M. W. MOSCONI, Auteur . - p.2675-2684. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 49-7 (July 2019) . - p.2675-2684 Mots-clés : Autism spectrum disorder  Motor  Precision grip  Visual feedback  Working memory Index. décimale : PER Périodiques Résumé : Sensorimotor abnormalities are common in individuals with autism spectrum disorder (ASD); however, the processes underlying these deficits remain unclear. This study examined force production with and without visual feedback to determine if individuals with ASD can utilize internal representations to guide sustained force. Individuals with ASD showed a faster rate of force decay in the absence of visual feedback. Comparison of force output and tests of social and verbal abilities demonstrated a link between motor memory impairment and social and verbal deficits in individuals with ASD. This finding suggests that deficits in storage or retrieval of motor memories contribute to sensorimotor deficits and implicates frontoparietal networks involved in short-term consolidation of action dynamics used to optimize ongoing motor output. En ligne : http://dx.doi.org/10.1007/s10803-016-2806-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=401

IQ and Sensory Symptom Severity Best Predict Motor Ability in Children With and Without Autism Spectrum Disorder / Olivia J SURGENT in Journal of Autism and Developmental Disorders, 51-1 (January 2021)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 51-1 (January 2021) . - p.243-254 Titre : IQ and Sensory Symptom Severity Best Predict Motor Ability in Children With and Without Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Olivia J SURGENT, Auteur ; Matthew WALCZAK, Auteur ; Oskar ZARZYCKI, Auteur ; Karla K. AUSDERAU, Auteur ; Brittany G TRAVERS, Auteur Article en page(s) : p.243-254 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder  Cognition  Motor  Sensory Index. décimale : PER Périodiques Résumé : Motor challenges are commonly reported in autism spectrum disorder (ASD). Yet, there is substantial heterogeneity in motor ability within ASD, and it is unknown what behavioral characteristics best explain individual differences in motor ability in ASD and related conditions. This observational study examined motor ability as a function of sensory features, attention deficit/hyperactivity symptoms, ASD symptoms, and IQ in 110 children with ASD, typical development, or an intermediate behavioral profile. While motor challenges were more prevalent in the ASD group compared to other groups, sensory symptom severity and IQ across all individuals best predicted motor performance above-and-beyond group status. Therefore, motor challenges may be best characterized by individual variation in sensory features and cognitive abilities rather than diagnostic group. En ligne : http://dx.doi.org/10.1007/s10803-020-04536-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=437 [article] IQ and Sensory Symptom Severity Best Predict Motor Ability in Children With and Without Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Olivia J SURGENT, Auteur ; Matthew WALCZAK, Auteur ; Oskar ZARZYCKI, Auteur ; Karla K. AUSDERAU, Auteur ; Brittany G TRAVERS, Auteur . - p.243-254. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 51-1 (January 2021) . - p.243-254 Mots-clés : Autism spectrum disorder  Cognition  Motor  Sensory Index. décimale : PER Périodiques Résumé : Motor challenges are commonly reported in autism spectrum disorder (ASD). Yet, there is substantial heterogeneity in motor ability within ASD, and it is unknown what behavioral characteristics best explain individual differences in motor ability in ASD and related conditions. This observational study examined motor ability as a function of sensory features, attention deficit/hyperactivity symptoms, ASD symptoms, and IQ in 110 children with ASD, typical development, or an intermediate behavioral profile. While motor challenges were more prevalent in the ASD group compared to other groups, sensory symptom severity and IQ across all individuals best predicted motor performance above-and-beyond group status. Therefore, motor challenges may be best characterized by individual variation in sensory features and cognitive abilities rather than diagnostic group. En ligne : http://dx.doi.org/10.1007/s10803-020-04536-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=437

Enhanced motor noise in an autism subtype with poor motor skills / Veronica MANDELLI in Molecular Autism, 15 (2024)  

Public ISBD [article]  inMolecular Autism > 15 (2024) . - 36p. Titre : Enhanced motor noise in an autism subtype with poor motor skills Type de document : Texte imprimé et/ou numérique Auteurs : Veronica MANDELLI, Auteur ; Isotta LANDI, Auteur ; Silvia Busti CECCARELLI, Auteur ; Massimo MOLTENI, Auteur ; Maria NOBILE, Auteur ; Alessandro D'AUSILIO, Auteur ; Luciano FADIGA, Auteur ; Alessandro CRIPPA, Auteur ; Michael V. LOMBARDO, Auteur Article en page(s) : 36p. Langues : Anglais (eng) Mots-clés : Humans  Child  Male  Female  Adolescent  Motor Skills  Autistic Disorder/physiopathology  Child, Preschool  Biomechanical Phenomena  Clustering  Kinematics  Motor  Stratification  Subtypes  competing interests to declare. Index. décimale : PER Périodiques Résumé : BACKGROUND: Motor difficulties are common in many, but not all, autistic individuals. These difficulties can co-occur with other problems, such as delays in language, intellectual, and adaptive functioning. Biological mechanisms underpinning such difficulties are less well understood. Poor motor skills tend to be more common in individuals carrying highly penetrant rare genetic mutations. Such mechanisms may have downstream consequences of altering neurophysiological excitation-inhibition balance and lead to enhanced behavioral motor noise. METHODS: This study combined publicly available and in-house datasets of autistic (n = 156), typically-developing (TD, n = 149), and developmental coordination disorder (DCD, n = 23) children (age 3-16 years). Autism motor subtypes were identified based on patterns of motor abilities measured from the Movement Assessment Battery for Children 2nd edition. Stability-based relative clustering validation was used to identify autism motor subtypes and evaluate generalization accuracy in held-out data. Autism motor subtypes were tested for differences in motor noise, operationalized as the degree of dissimilarity between repeated motor kinematic trajectories recorded during a simple reach-to-drop task. RESULTS: Relatively 'high' (n = 87) versus 'low' (n = 69) autism motor subtypes could be detected and which generalize with 89% accuracy in held-out data. The relatively 'low' subtype was lower in general intellectual ability and older at age of independent walking, but did not differ in age at first words or autistic traits or symptomatology. Motor noise was considerably higher in the 'low' subtype compared to 'high' (Cohen's d = 0.77) or TD children (Cohen's d = 0.85), but similar between autism 'high' and TD children (Cohen's d = 0.08). Enhanced motor noise in the 'low' subtype was also most pronounced during the feedforward phase of reaching actions. LIMITATIONS: The sample size of this work is limited. Future work in larger samples along with independent replication is important. Motor noise was measured only on one specific motor task. Thus, a more comprehensive assessment of motor noise on many other motor tasks is needed. CONCLUSIONS: Autism can be split into at least two discrete motor subtypes that are characterized by differing levels of motor noise. This suggests that autism motor subtypes may be underpinned by different biological mechanisms. En ligne : https://dx.doi.org/10.1186/s13229-024-00618-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=538 [article] Enhanced motor noise in an autism subtype with poor motor skills [Texte imprimé et/ou numérique] / Veronica MANDELLI, Auteur ; Isotta LANDI, Auteur ; Silvia Busti CECCARELLI, Auteur ; Massimo MOLTENI, Auteur ; Maria NOBILE, Auteur ; Alessandro D'AUSILIO, Auteur ; Luciano FADIGA, Auteur ; Alessandro CRIPPA, Auteur ; Michael V. LOMBARDO, Auteur . - 36p. Langues : Anglais (eng) in Molecular Autism > 15 (2024) . - 36p. Mots-clés : Humans  Child  Male  Female  Adolescent  Motor Skills  Autistic Disorder/physiopathology  Child, Preschool  Biomechanical Phenomena  Clustering  Kinematics  Motor  Stratification  Subtypes  competing interests to declare. Index. décimale : PER Périodiques Résumé : BACKGROUND: Motor difficulties are common in many, but not all, autistic individuals. These difficulties can co-occur with other problems, such as delays in language, intellectual, and adaptive functioning. Biological mechanisms underpinning such difficulties are less well understood. Poor motor skills tend to be more common in individuals carrying highly penetrant rare genetic mutations. Such mechanisms may have downstream consequences of altering neurophysiological excitation-inhibition balance and lead to enhanced behavioral motor noise. METHODS: This study combined publicly available and in-house datasets of autistic (n = 156), typically-developing (TD, n = 149), and developmental coordination disorder (DCD, n = 23) children (age 3-16 years). Autism motor subtypes were identified based on patterns of motor abilities measured from the Movement Assessment Battery for Children 2nd edition. Stability-based relative clustering validation was used to identify autism motor subtypes and evaluate generalization accuracy in held-out data. Autism motor subtypes were tested for differences in motor noise, operationalized as the degree of dissimilarity between repeated motor kinematic trajectories recorded during a simple reach-to-drop task. RESULTS: Relatively 'high' (n = 87) versus 'low' (n = 69) autism motor subtypes could be detected and which generalize with 89% accuracy in held-out data. The relatively 'low' subtype was lower in general intellectual ability and older at age of independent walking, but did not differ in age at first words or autistic traits or symptomatology. Motor noise was considerably higher in the 'low' subtype compared to 'high' (Cohen's d = 0.77) or TD children (Cohen's d = 0.85), but similar between autism 'high' and TD children (Cohen's d = 0.08). Enhanced motor noise in the 'low' subtype was also most pronounced during the feedforward phase of reaching actions. LIMITATIONS: The sample size of this work is limited. Future work in larger samples along with independent replication is important. Motor noise was measured only on one specific motor task. Thus, a more comprehensive assessment of motor noise on many other motor tasks is needed. CONCLUSIONS: Autism can be split into at least two discrete motor subtypes that are characterized by differing levels of motor noise. This suggests that autism motor subtypes may be underpinned by different biological mechanisms. En ligne : https://dx.doi.org/10.1186/s13229-024-00618-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=538

Auditory-motor rhythm synchronization in children with autism spectrum disorder / Ana TRYFON in Research in Autism Spectrum Disorders, 35 (March 2017)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 35 (March 2017) . - p.51-61 Titre : Auditory-motor rhythm synchronization in children with autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Ana TRYFON, Auteur ; Nicholas E. FOSTER, Auteur ; Tia OUIMET, Auteur ; Krissy DOYLE-THOMAS, Auteur ; Evdokia ANAGNOSTOU, Auteur ; Megha SHARDA, Auteur ; Krista L. HYDE, Auteur Article en page(s) : p.51-61 Langues : Anglais (eng) Mots-clés : Autism  Auditory  Motor  Rhythm  Synchronization  Development Index. décimale : PER Périodiques Résumé : Autism spectrum disorder (ASD) is characterized by difficulties in social and communication skills as well as atypical sensory perception and motor skills. Sensorimotor abilities such as auditory-motor integration are essential for social interaction and communication. The goal of this research was to investigate the development of auditory-motor rhythm synchronization for the first time in ASD versus typically-developing (TD) children. Methods Participants were 31 boys with ASD and 23 TD boys that were matched in age and IQ. Participants were tested on an auditory-motor rhythm synchronization task in which they tapped in synchrony with rhythms of varying metrical complexity. Results Both children with ASD and TD performed similarly on this task and both groups performed better with age. This work demonstrates that non-verbal rhythm synchronization is intact in ASD over the course of childhood development. This research serves to better understand sensorimotor interactions in ASD and to better define sensory phenotypes in ASD. En ligne : http://dx.doi.org/10.1016/j.rasd.2016.12.004 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=304 [article] Auditory-motor rhythm synchronization in children with autism spectrum disorder [Texte imprimé et/ou numérique] / Ana TRYFON, Auteur ; Nicholas E. FOSTER, Auteur ; Tia OUIMET, Auteur ; Krissy DOYLE-THOMAS, Auteur ; Evdokia ANAGNOSTOU, Auteur ; Megha SHARDA, Auteur ; Krista L. HYDE, Auteur . - p.51-61. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 35 (March 2017) . - p.51-61 Mots-clés : Autism  Auditory  Motor  Rhythm  Synchronization  Development Index. décimale : PER Périodiques Résumé : Autism spectrum disorder (ASD) is characterized by difficulties in social and communication skills as well as atypical sensory perception and motor skills. Sensorimotor abilities such as auditory-motor integration are essential for social interaction and communication. The goal of this research was to investigate the development of auditory-motor rhythm synchronization for the first time in ASD versus typically-developing (TD) children. Methods Participants were 31 boys with ASD and 23 TD boys that were matched in age and IQ. Participants were tested on an auditory-motor rhythm synchronization task in which they tapped in synchrony with rhythms of varying metrical complexity. Results Both children with ASD and TD performed similarly on this task and both groups performed better with age. This work demonstrates that non-verbal rhythm synchronization is intact in ASD over the course of childhood development. This research serves to better understand sensorimotor interactions in ASD and to better define sensory phenotypes in ASD. En ligne : http://dx.doi.org/10.1016/j.rasd.2016.12.004 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=304

Brainstem White Matter Predicts Individual Differences in Manual Motor Difficulties and Symptom Severity in Autism / Brittany G. TRAVERS in Journal of Autism and Developmental Disorders, 45-9 (September 2015)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 45-9 (September 2015) . - p.3030-3040 Titre : Brainstem White Matter Predicts Individual Differences in Manual Motor Difficulties and Symptom Severity in Autism Type de document : Texte imprimé et/ou numérique Auteurs : Brittany G. TRAVERS, Auteur ; Erin D. BIGLER, Auteur ; Do P. M. TROMP, Auteur ; Nagesh ADLURU, Auteur ; Dan DESTICHE, Auteur ; Danica SAMSIN, Auteur ; Alyson FROEHLICH, Auteur ; Molly D. B. PRIGGE, Auteur ; Tyler C. DUFFIELD, Auteur ; Nicholas LANGE, Auteur ; Andrew L. ALEXANDER, Auteur ; Janet E. LAINHART, Auteur Article en page(s) : p.3030-3040 Langues : Anglais (eng) Mots-clés : Autism  Motor  Diffusion tensor imaging  Brainstem  Grip strength  Finger tapping Index. décimale : PER Périodiques Résumé : Mounting evidence suggests that poorer motor skills may be related to more severe autism symptoms. This study investigated if atypical white matter microstructure in the brain mediated the relationship between motor skills and ASD symptom severity. Sixty-seven males with ASD and 42 males with typical development (5–33 years old) completed a diffusion tensor imaging scan and measures of grip strength, finger tapping, and autism symptom severity. Within the ASD group, weaker grip strength predicted more severe autism symptoms. Fractional anisotropy of the brainstem’s corticospinal tract predicted both grip strength and autism symptom severity and mediated the relationship between the two. These findings suggest that brainstem white matter may contribute to autism symptoms and grip strength in ASD. En ligne : http://dx.doi.org/10.1007/s10803-015-2467-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=267 [article] Brainstem White Matter Predicts Individual Differences in Manual Motor Difficulties and Symptom Severity in Autism [Texte imprimé et/ou numérique] / Brittany G. TRAVERS, Auteur ; Erin D. BIGLER, Auteur ; Do P. M. TROMP, Auteur ; Nagesh ADLURU, Auteur ; Dan DESTICHE, Auteur ; Danica SAMSIN, Auteur ; Alyson FROEHLICH, Auteur ; Molly D. B. PRIGGE, Auteur ; Tyler C. DUFFIELD, Auteur ; Nicholas LANGE, Auteur ; Andrew L. ALEXANDER, Auteur ; Janet E. LAINHART, Auteur . - p.3030-3040. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 45-9 (September 2015) . - p.3030-3040 Mots-clés : Autism  Motor  Diffusion tensor imaging  Brainstem  Grip strength  Finger tapping Index. décimale : PER Périodiques Résumé : Mounting evidence suggests that poorer motor skills may be related to more severe autism symptoms. This study investigated if atypical white matter microstructure in the brain mediated the relationship between motor skills and ASD symptom severity. Sixty-seven males with ASD and 42 males with typical development (5–33 years old) completed a diffusion tensor imaging scan and measures of grip strength, finger tapping, and autism symptom severity. Within the ASD group, weaker grip strength predicted more severe autism symptoms. Fractional anisotropy of the brainstem’s corticospinal tract predicted both grip strength and autism symptom severity and mediated the relationship between the two. These findings suggest that brainstem white matter may contribute to autism symptoms and grip strength in ASD. En ligne : http://dx.doi.org/10.1007/s10803-015-2467-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=267

Catatonia: The Ultimate yet Treatable Motor Reaction to Fear in Autism / Dirk M. DHOSSCHE in Autism - Open Access, 1-1 (December 2011)  

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Language and motor skills in siblings of children with autism spectrum disorder: A meta-analytic review / Dunia GARRIDO in Autism Research, 10-11 (November 2017)  

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A Longitudinal Analysis of the Relationships Between Social, Communication, and Motor Skills Among Students with Autism / W. C. CHEUNG in Journal of Autism and Developmental Disorders, 52-10 (October 2022)  

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The effect of motor and physical activity intervention on motor outcomes of children with autism spectrum disorder: A systematic review / Anneliese RUGGERI in Autism, 24-3 (April 2020)  

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Timing deficits are implicated in motor dysfunction in Asperger's Syndrome / Kelly J. PRICE in Research in Autism Spectrum Disorders, 6-2 (April-June 2012)  

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