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Résultat de la recherche
11 recherche sur le mot-clé 'Kinematics'




Differences in the production and perception of communicative kinematics in autism / J. P. TRUJILLO in Autism Research, 14-12 (December 2021)
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Titre : Differences in the production and perception of communicative kinematics in autism Type de document : Texte imprimé et/ou numérique Auteurs : J. P. TRUJILLO, Auteur ; A. ÖZYÜREK, Auteur ; C. C. KAN, Auteur ; I. SHEFTEL-SIMANOVA, Auteur ; Harold BEKKERING, Auteur Article en page(s) : p.2640-2653 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder Autistic Disorder Biomechanical Phenomena Gestures Humans Perception autism gesture kinematics motion tracking movement Index. décimale : PER Périodiques Résumé : In human communication, social intentions and meaning are often revealed in the way we move. In this study, we investigate the flexibility of human communication in terms of kinematic modulation in a clinical population, namely, autistic individuals. The aim of this study was twofold: to assess (a) whether communicatively relevant kinematic features of gestures differ between autistic and neurotypical individuals, and (b) if autistic individuals use communicative kinematic modulation to support gesture recognition. We tested autistic and neurotypical individuals on a silent gesture production task and a gesture comprehension task. We measured movement during the gesture production task using a Kinect motion tracking device in order to determine if autistic individuals differed from neurotypical individuals in their gesture kinematics. For the gesture comprehension task, we assessed whether autistic individuals used communicatively relevant kinematic cues to support recognition. This was done by using stick-light figures as stimuli and testing for a correlation between the kinematics of these videos and recognition performance. We found that (a) silent gestures produced by autistic and neurotypical individuals differ in communicatively relevant kinematic features, such as the number of meaningful holds between movements, and (b) while autistic individuals are overall unimpaired at recognizing gestures, they processed repetition and complexity, measured as the amount of submovements perceived, differently than neurotypicals do. These findings highlight how subtle aspects of neurotypical behavior can be experienced differently by autistic individuals. They further demonstrate the relationship between movement kinematics and social interaction in high-functioning autistic individuals. LAY SUMMARY: Hand gestures are an important part of how we communicate, and the way that we move when gesturing can influence how easy a gesture is to understand. We studied how autistic and typical individuals produce and recognize hand gestures, and how this relates to movement characteristics. We found that autistic individuals moved differently when gesturing compared to typical individuals. In addition, while autistic individuals were not worse at recognizing gestures, they differed from typical individuals in how they interpreted certain movement characteristics. En ligne : http://dx.doi.org/10.1002/aur.2611 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=450
in Autism Research > 14-12 (December 2021) . - p.2640-2653[article] Differences in the production and perception of communicative kinematics in autism [Texte imprimé et/ou numérique] / J. P. TRUJILLO, Auteur ; A. ÖZYÜREK, Auteur ; C. C. KAN, Auteur ; I. SHEFTEL-SIMANOVA, Auteur ; Harold BEKKERING, Auteur . - p.2640-2653.
Langues : Anglais (eng)
in Autism Research > 14-12 (December 2021) . - p.2640-2653
Mots-clés : Autism Spectrum Disorder Autistic Disorder Biomechanical Phenomena Gestures Humans Perception autism gesture kinematics motion tracking movement Index. décimale : PER Périodiques Résumé : In human communication, social intentions and meaning are often revealed in the way we move. In this study, we investigate the flexibility of human communication in terms of kinematic modulation in a clinical population, namely, autistic individuals. The aim of this study was twofold: to assess (a) whether communicatively relevant kinematic features of gestures differ between autistic and neurotypical individuals, and (b) if autistic individuals use communicative kinematic modulation to support gesture recognition. We tested autistic and neurotypical individuals on a silent gesture production task and a gesture comprehension task. We measured movement during the gesture production task using a Kinect motion tracking device in order to determine if autistic individuals differed from neurotypical individuals in their gesture kinematics. For the gesture comprehension task, we assessed whether autistic individuals used communicatively relevant kinematic cues to support recognition. This was done by using stick-light figures as stimuli and testing for a correlation between the kinematics of these videos and recognition performance. We found that (a) silent gestures produced by autistic and neurotypical individuals differ in communicatively relevant kinematic features, such as the number of meaningful holds between movements, and (b) while autistic individuals are overall unimpaired at recognizing gestures, they processed repetition and complexity, measured as the amount of submovements perceived, differently than neurotypicals do. These findings highlight how subtle aspects of neurotypical behavior can be experienced differently by autistic individuals. They further demonstrate the relationship between movement kinematics and social interaction in high-functioning autistic individuals. LAY SUMMARY: Hand gestures are an important part of how we communicate, and the way that we move when gesturing can influence how easy a gesture is to understand. We studied how autistic and typical individuals produce and recognize hand gestures, and how this relates to movement characteristics. We found that autistic individuals moved differently when gesturing compared to typical individuals. In addition, while autistic individuals were not worse at recognizing gestures, they differed from typical individuals in how they interpreted certain movement characteristics. En ligne : http://dx.doi.org/10.1002/aur.2611 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=450 Reduced Mimicry to Virtual Reality Avatars in Autism Spectrum Disorder / Paul A. G. FORBES in Journal of Autism and Developmental Disorders, 46-12 (December 2016)
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Titre : Reduced Mimicry to Virtual Reality Avatars in Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Paul A. G. FORBES, Auteur ; Xueni PAN, Auteur ; Antonia HAMILTON, Auteur Article en page(s) : p.3788-3797 Langues : Anglais (eng) Mots-clés : Mimicry Virtual reality Social cognition Kinematics Imitation Index. décimale : PER Périodiques Résumé : Mimicry involves unconsciously copying the actions of others. Increasing evidence suggests that autistic people can copy the goal of an observed action but show differences in their mimicry. We investigated mimicry in autism spectrum disorder (ASD) within a two-dimensional virtual reality environment. Participants played an imitation game with a socially engaged avatar and socially disengaged avatar. Despite being told only to copy the goal of the observed action, autistic participants and matched neurotypical participants mimicked the kinematics of the avatars’ movements. However, autistic participants mimicked less. Social engagement did not modulate mimicry in either group. The results demonstrate the feasibility of using virtual reality to induce mimicry and suggest mimicry differences in ASD may also occur when interacting with avatars. En ligne : http://dx.doi.org/10.1007/s10803-016-2930-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=297
in Journal of Autism and Developmental Disorders > 46-12 (December 2016) . - p.3788-3797[article] Reduced Mimicry to Virtual Reality Avatars in Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Paul A. G. FORBES, Auteur ; Xueni PAN, Auteur ; Antonia HAMILTON, Auteur . - p.3788-3797.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 46-12 (December 2016) . - p.3788-3797
Mots-clés : Mimicry Virtual reality Social cognition Kinematics Imitation Index. décimale : PER Périodiques Résumé : Mimicry involves unconsciously copying the actions of others. Increasing evidence suggests that autistic people can copy the goal of an observed action but show differences in their mimicry. We investigated mimicry in autism spectrum disorder (ASD) within a two-dimensional virtual reality environment. Participants played an imitation game with a socially engaged avatar and socially disengaged avatar. Despite being told only to copy the goal of the observed action, autistic participants and matched neurotypical participants mimicked the kinematics of the avatars’ movements. However, autistic participants mimicked less. Social engagement did not modulate mimicry in either group. The results demonstrate the feasibility of using virtual reality to induce mimicry and suggest mimicry differences in ASD may also occur when interacting with avatars. En ligne : http://dx.doi.org/10.1007/s10803-016-2930-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=297 Three-Dimensional Kinematic Analysis of Prehension Movements in Young Children with Autism Spectrum Disorder: New Insights on Motor Impairment / Giovanna Cristina CAMPIONE in Journal of Autism and Developmental Disorders, 46-6 (June 2016)
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Titre : Three-Dimensional Kinematic Analysis of Prehension Movements in Young Children with Autism Spectrum Disorder: New Insights on Motor Impairment Type de document : Texte imprimé et/ou numérique Auteurs : Giovanna Cristina CAMPIONE, Auteur ; Caterina PIAZZA, Auteur ; Laura VILLA, Auteur ; Massimo MOLTENI, Auteur Article en page(s) : p.1985-1999 Langues : Anglais (eng) Mots-clés : Grasping Reaching Kinematics Feedforward Sensory-control-feedback Autism-spectrum-disorder Index. décimale : PER Périodiques Résumé : The study was aimed at better clarifying whether action execution impairment in autism depends mainly on disruptions either in feedforward mechanisms or in feedback-based control processes supporting motor execution. To this purpose, we analyzed prehension movement kinematics in 4- and 5-year-old children with autism and in peers with typical development. Statistical analysis showed that the kinematics of the grasp component was spared in autism, whereas early kinematics of the reach component was atypical. We discussed this evidence as suggesting impairment in the feedforward processes involved in action execution, whereas impairment in feedback-based control processes remained unclear. We proposed that certain motor abilities are available in autism, and children may use them differently as a function of motor context complexity. En ligne : http://dx.doi.org/10.1007/s10803-016-2732-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=288
in Journal of Autism and Developmental Disorders > 46-6 (June 2016) . - p.1985-1999[article] Three-Dimensional Kinematic Analysis of Prehension Movements in Young Children with Autism Spectrum Disorder: New Insights on Motor Impairment [Texte imprimé et/ou numérique] / Giovanna Cristina CAMPIONE, Auteur ; Caterina PIAZZA, Auteur ; Laura VILLA, Auteur ; Massimo MOLTENI, Auteur . - p.1985-1999.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 46-6 (June 2016) . - p.1985-1999
Mots-clés : Grasping Reaching Kinematics Feedforward Sensory-control-feedback Autism-spectrum-disorder Index. décimale : PER Périodiques Résumé : The study was aimed at better clarifying whether action execution impairment in autism depends mainly on disruptions either in feedforward mechanisms or in feedback-based control processes supporting motor execution. To this purpose, we analyzed prehension movement kinematics in 4- and 5-year-old children with autism and in peers with typical development. Statistical analysis showed that the kinematics of the grasp component was spared in autism, whereas early kinematics of the reach component was atypical. We discussed this evidence as suggesting impairment in the feedforward processes involved in action execution, whereas impairment in feedback-based control processes remained unclear. We proposed that certain motor abilities are available in autism, and children may use them differently as a function of motor context complexity. En ligne : http://dx.doi.org/10.1007/s10803-016-2732-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=288 Atypical development of sequential manual motor planning and visuomotor integration in children with autism at early school-age: A longitudinal kinematic study / Anna-Maria Johansson ; Thomas Rudolfsson ; Louise RONNQVIST ; Claes VON HOFSTEN ; Kerstin ROSANDER ; Erik DOMELLÖF in Autism, 29-6 (June 2025)
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Titre : Atypical development of sequential manual motor planning and visuomotor integration in children with autism at early school-age: A longitudinal kinematic study Type de document : Texte imprimé et/ou numérique Auteurs : Anna-Maria Johansson, Auteur ; Thomas Rudolfsson, Auteur ; Louise RONNQVIST, Auteur ; Claes VON HOFSTEN, Auteur ; Kerstin ROSANDER, Auteur ; Erik DOMELLÖF, Auteur Article en page(s) : p.1510-1523 Langues : Anglais (eng) Mots-clés : autism spectrum disorders development kinematics longitudinal motor planning school-age children visuomotor integration Index. décimale : PER Périodiques Résumé : Sensorimotor difficulties are common in children with autism spectrum disorder, and it has been suggested that motor planning problems underlie their atypical movements. At early school-age, motor planning development typically involves changes in visuomotor integration, a function known to be affected in autism spectrum disorder. However, there is a lack of detailed characterization of typical motor planning development during this stage, and how motor planning develops in children with autism spectrum disorder is largely unknown. This longitudinal kinematic study examined goal-directed sequential manual movements in children with autism spectrum disorder and in typically developing children across ages 7, 8, and 9?years. We manipulated goal-difficulty and availability of initial visual information to investigate visuomotor integration and chaining of subparts during movement performance. The results revealed emerging group differences at older age, suggesting atypical motor planning development in children with autism spectrum disorder. Notably, unlike the typically developing group, availability of initial visual information did not facilitate motor planning for the autism spectrum disorder group. The results show that motor planning differences in autism spectrum disorder appear related to atypical visuomotor integration and global processing of sensorimotor information. The findings also emphasize the importance of considering developmental aspects in research and practice related to motor problems in children with autism spectrum disorder.Lay abstract Many children with autism struggle with movement difficulties, yet the causes of these difficulties remain unclear. One possible explanation is atypical motor planning and integration of visual and motoric information. Before performing a goal-directed movement, the brain creates a prediction of the movement based on visual and sensory information and previous experience, forming a "blueprint" of the motor steps needed to achieve the goal. This process is called motor planning. During movement, adjustments to the plan can be made through feedback mechanisms. This longitudinal study aimed to examine the development of motor planning in children with autism and typically developing children over early school-age (7-9?years). The children performed a sequential manual peg-rotation task, which involved grasping, rotating, and placing a peg, while detailed measures of movement were collected. Task end-goal difficulty varied, and the goal was either initially occluded or fully visible. The results revealed that children with autism showed atypical motor planning development compared with typically developing peers, and these differences became more pronounced as the children grew older. As the typically developing children matured, they appeared to rely more on initial visual information, which assisted them in motor planning. However, this facilitation did not occur for children with autism. These findings suggest that the differences in motor planning seen in children with autism may be linked to atypical visuomotor integration, highlighting the need for individualized interventions. Furthermore, it is crucial to consider developmental aspects to fully understand motor planning in children with autism. En ligne : https://dx.doi.org/10.1177/13623613241311333 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=558
in Autism > 29-6 (June 2025) . - p.1510-1523[article] Atypical development of sequential manual motor planning and visuomotor integration in children with autism at early school-age: A longitudinal kinematic study [Texte imprimé et/ou numérique] / Anna-Maria Johansson, Auteur ; Thomas Rudolfsson, Auteur ; Louise RONNQVIST, Auteur ; Claes VON HOFSTEN, Auteur ; Kerstin ROSANDER, Auteur ; Erik DOMELLÖF, Auteur . - p.1510-1523.
Langues : Anglais (eng)
in Autism > 29-6 (June 2025) . - p.1510-1523
Mots-clés : autism spectrum disorders development kinematics longitudinal motor planning school-age children visuomotor integration Index. décimale : PER Périodiques Résumé : Sensorimotor difficulties are common in children with autism spectrum disorder, and it has been suggested that motor planning problems underlie their atypical movements. At early school-age, motor planning development typically involves changes in visuomotor integration, a function known to be affected in autism spectrum disorder. However, there is a lack of detailed characterization of typical motor planning development during this stage, and how motor planning develops in children with autism spectrum disorder is largely unknown. This longitudinal kinematic study examined goal-directed sequential manual movements in children with autism spectrum disorder and in typically developing children across ages 7, 8, and 9?years. We manipulated goal-difficulty and availability of initial visual information to investigate visuomotor integration and chaining of subparts during movement performance. The results revealed emerging group differences at older age, suggesting atypical motor planning development in children with autism spectrum disorder. Notably, unlike the typically developing group, availability of initial visual information did not facilitate motor planning for the autism spectrum disorder group. The results show that motor planning differences in autism spectrum disorder appear related to atypical visuomotor integration and global processing of sensorimotor information. The findings also emphasize the importance of considering developmental aspects in research and practice related to motor problems in children with autism spectrum disorder.Lay abstract Many children with autism struggle with movement difficulties, yet the causes of these difficulties remain unclear. One possible explanation is atypical motor planning and integration of visual and motoric information. Before performing a goal-directed movement, the brain creates a prediction of the movement based on visual and sensory information and previous experience, forming a "blueprint" of the motor steps needed to achieve the goal. This process is called motor planning. During movement, adjustments to the plan can be made through feedback mechanisms. This longitudinal study aimed to examine the development of motor planning in children with autism and typically developing children over early school-age (7-9?years). The children performed a sequential manual peg-rotation task, which involved grasping, rotating, and placing a peg, while detailed measures of movement were collected. Task end-goal difficulty varied, and the goal was either initially occluded or fully visible. The results revealed that children with autism showed atypical motor planning development compared with typically developing peers, and these differences became more pronounced as the children grew older. As the typically developing children matured, they appeared to rely more on initial visual information, which assisted them in motor planning. However, this facilitation did not occur for children with autism. These findings suggest that the differences in motor planning seen in children with autism may be linked to atypical visuomotor integration, highlighting the need for individualized interventions. Furthermore, it is crucial to consider developmental aspects to fully understand motor planning in children with autism. En ligne : https://dx.doi.org/10.1177/13623613241311333 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=558 Characterizing goal-directed whole-body movements in autistic children and children with developmental coordination disorder / Stacey B. HIRSCH ; Priscila M. TAMPLAIN ; Tylan N. TEMPLIN ; Gabriela M. SHERROD ; Nicoleta L. BUGNARIU ; Rita PATTERSON ; Haylie L. MILLER in Research in Autism Spectrum Disorders, 114 (June 2024)
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Titre : Characterizing goal-directed whole-body movements in autistic children and children with developmental coordination disorder Type de document : Texte imprimé et/ou numérique Auteurs : Stacey B. HIRSCH, Auteur ; Priscila M. TAMPLAIN, Auteur ; Tylan N. TEMPLIN, Auteur ; Gabriela M. SHERROD, Auteur ; Nicoleta L. BUGNARIU, Auteur ; Rita PATTERSON, Auteur ; Haylie L. MILLER, Auteur Année de publication : 2024 Article en page(s) : p.102374 Langues : Anglais (eng) Mots-clés : Autism Developmental coordination disorder Dyspraxia Postural control Virtual reality Kinematics Index. décimale : PER Périodiques Résumé : Background Motor difficulties are highly prevalent in neurodevelopmental conditions. Both autistic children and children with developmental coordination disorder exhibit clinically-significant motor difficulties with substantial differences in postural control. Postural control has been examined extensively in these groups independently, but there has been little research comparing them in the same study. Methods We examined dynamic postural control in autistic children, children with developmental coordination disorder, and neurotypical children using an immersive virtual reality task. Children moved a user-controlled ball to a static target using whole-body movements. Results Children in all three groups were able to move their ball to the target successfully, but there were significant differences in their movement characteristics (e.g., trial duration, path efficiency, log dimensionless jerk, movement types). There was a similar trend for each of the movement characteristics: autistic children performed significantly worse than neurotypical children, and children with developmental coordination disorder had varied performance compared to neurotypical and autistic children. Conclusion These findings provide clear support for our hypotheses that autistic children have difficulty with goal-directed whole-body movements, and that these movements are similarly different from neurotypical children?s movements. They provide mixed support for our hypothesis that children with developmental coordination disorder differ in their goal-directed body movements. By understanding the similarities and differences in motor difficulties across neurodevelopmental conditions, we can begin to develop motor interventions specifically targeted to the unique motor profiles of these populations. En ligne : https://doi.org/10.1016/j.rasd.2024.102374 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=529
in Research in Autism Spectrum Disorders > 114 (June 2024) . - p.102374[article] Characterizing goal-directed whole-body movements in autistic children and children with developmental coordination disorder [Texte imprimé et/ou numérique] / Stacey B. HIRSCH, Auteur ; Priscila M. TAMPLAIN, Auteur ; Tylan N. TEMPLIN, Auteur ; Gabriela M. SHERROD, Auteur ; Nicoleta L. BUGNARIU, Auteur ; Rita PATTERSON, Auteur ; Haylie L. MILLER, Auteur . - 2024 . - p.102374.
Langues : Anglais (eng)
in Research in Autism Spectrum Disorders > 114 (June 2024) . - p.102374
Mots-clés : Autism Developmental coordination disorder Dyspraxia Postural control Virtual reality Kinematics Index. décimale : PER Périodiques Résumé : Background Motor difficulties are highly prevalent in neurodevelopmental conditions. Both autistic children and children with developmental coordination disorder exhibit clinically-significant motor difficulties with substantial differences in postural control. Postural control has been examined extensively in these groups independently, but there has been little research comparing them in the same study. Methods We examined dynamic postural control in autistic children, children with developmental coordination disorder, and neurotypical children using an immersive virtual reality task. Children moved a user-controlled ball to a static target using whole-body movements. Results Children in all three groups were able to move their ball to the target successfully, but there were significant differences in their movement characteristics (e.g., trial duration, path efficiency, log dimensionless jerk, movement types). There was a similar trend for each of the movement characteristics: autistic children performed significantly worse than neurotypical children, and children with developmental coordination disorder had varied performance compared to neurotypical and autistic children. Conclusion These findings provide clear support for our hypotheses that autistic children have difficulty with goal-directed whole-body movements, and that these movements are similarly different from neurotypical children?s movements. They provide mixed support for our hypothesis that children with developmental coordination disorder differ in their goal-directed body movements. By understanding the similarities and differences in motor difficulties across neurodevelopmental conditions, we can begin to develop motor interventions specifically targeted to the unique motor profiles of these populations. En ligne : https://doi.org/10.1016/j.rasd.2024.102374 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=529 Enhanced motor noise in an autism subtype with poor motor skills / Veronica MANDELLI in Molecular Autism, 15 (2024)
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PermalinkMotor deficits in autism differ from that of developmental coordination disorder / Livio FINOS ; Salam BAHMAD ; Eric KOUN ; Romeo SALEMME ; Sandrine SONIE ; Pierre FOURNERET ; Christina SCHMITZ ; Alice Catherine ROY in Autism, 28-2 (February 2024)
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PermalinkA multimethod approach to assessing motor skills in boys and girls with autism spectrum disorder / Alessandro CRIPPA in Autism, 25-5 (July 2021)
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PermalinkA multimethod approach to assessing motor skills in boys and girls with autism spectrum disorder / Alessandro CRIPPA in Autism, 26-5 (July 2022)
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PermalinkUse of Machine Learning to Identify Children with Autism and Their Motor Abnormalities / Alessandro CRIPPA in Journal of Autism and Developmental Disorders, 45-7 (July 2015)
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