29 recherche sur le mot-clé 'Biological motion'

Biological motion and the animate–inanimate distinction in children with high-functioning Autism Spectrum Disorder / Kristyn WRIGHT in Research in Autism Spectrum Disorders, 25 (May 2016)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 25 (May 2016) . - p.1-11 Titre : Biological motion and the animate–inanimate distinction in children with high-functioning Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Kristyn WRIGHT, Auteur ; Elizabeth KELLEY, Auteur ; Diane POULIN-DUBOIS, Auteur Article en page(s) : p.1-11 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder  Biological motion  Social orienting  Animate–inanimate distinction Index. décimale : PER Périodiques Résumé : The current study examined whether children with high-functioning Autism Spectrum Disorder (HF-ASD) preferentially attend to point-light displays of biological, compared to mechanical motion. We hypothesized that children’s attentional patterns toward the motion of living things would be reduced compared to typically developing (TD) children. Children also completed two categorization tasks measuring the animate–inanimate distinction. Children with HF-ASD were matched with TD children (n = 18 per group) on age, gender, and verbal ability. Overall, children with HF-ASD attended to biological and non-biological motion equally, whereas TD children demonstrated a preference for inanimate motion. Children with HF-ASD were also unimpaired in the formation of animate and inanimate concepts. Among children with HF-ASD, a link between attention to motion and categorization ability was observed, but only for inanimate objects. TD and HF-ASD groups differed in that visual exploration of the motion videos (e.g., saccades) was related to animate–inanimate categorization only among children with HF-ASD. These results are discussed as a low-level test of the social attention/orienting hypothesis. En ligne : http://dx.doi.org/10.1016/j.rasd.2016.01.005 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=285 [article] Biological motion and the animate–inanimate distinction in children with high-functioning Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Kristyn WRIGHT, Auteur ; Elizabeth KELLEY, Auteur ; Diane POULIN-DUBOIS, Auteur . - p.1-11. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 25 (May 2016) . - p.1-11 Mots-clés : Autism Spectrum Disorder  Biological motion  Social orienting  Animate–inanimate distinction Index. décimale : PER Périodiques Résumé : The current study examined whether children with high-functioning Autism Spectrum Disorder (HF-ASD) preferentially attend to point-light displays of biological, compared to mechanical motion. We hypothesized that children’s attentional patterns toward the motion of living things would be reduced compared to typically developing (TD) children. Children also completed two categorization tasks measuring the animate–inanimate distinction. Children with HF-ASD were matched with TD children (n = 18 per group) on age, gender, and verbal ability. Overall, children with HF-ASD attended to biological and non-biological motion equally, whereas TD children demonstrated a preference for inanimate motion. Children with HF-ASD were also unimpaired in the formation of animate and inanimate concepts. Among children with HF-ASD, a link between attention to motion and categorization ability was observed, but only for inanimate objects. TD and HF-ASD groups differed in that visual exploration of the motion videos (e.g., saccades) was related to animate–inanimate categorization only among children with HF-ASD. These results are discussed as a low-level test of the social attention/orienting hypothesis. En ligne : http://dx.doi.org/10.1016/j.rasd.2016.01.005 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=285

Biological motion perception in autism spectrum disorder: a meta-analysis / G. K. TODOROVA in Molecular Autism, 10 (2019)  

Public ISBD [article]  inMolecular Autism > 10 (2019) . - 49 p. Titre : Biological motion perception in autism spectrum disorder: a meta-analysis Type de document : Texte imprimé et/ou numérique Auteurs : G. K. TODOROVA, Auteur ; R. E. M. HATTON, Auteur ; F. E. POLLICK, Auteur Article en page(s) : 49 p. Langues : Anglais (eng) Mots-clés : Age  Autism spectrum disorders  Biological motion  Emotion recognition  Meta-analysis Index. décimale : PER Périodiques Résumé : Background: Biological motion, namely the movement of others, conveys information that allows the identification of affective states and intentions. This makes it an important avenue of research in autism spectrum disorder where social functioning is one of the main areas of difficulty. We aimed to create a quantitative summary of previous findings and investigate potential factors, which could explain the variable results found in the literature investigating biological motion perception in autism. Methods: A search from five electronic databases yielded 52 papers eligible for a quantitative summarisation, including behavioural, eye-tracking, electroencephalography and functional magnetic resonance imaging studies. Results: Using a three-level random effects meta-analytic approach, we found that individuals with autism generally showed decreased performance in perception and interpretation of biological motion. Results additionally suggest decreased performance when higher order information, such as emotion, is required. Moreover, with the increase of age, the difference between autistic and neurotypical individuals decreases, with children showing the largest effect size overall. Conclusion: We highlight the need for methodological standards and clear distinctions between the age groups and paradigms utilised when trying to interpret differences between the two populations. En ligne : http://dx.doi.org/10.1186/s13229-019-0299-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=414 [article] Biological motion perception in autism spectrum disorder: a meta-analysis [Texte imprimé et/ou numérique] / G. K. TODOROVA, Auteur ; R. E. M. HATTON, Auteur ; F. E. POLLICK, Auteur . - 49 p. Langues : Anglais (eng) in Molecular Autism > 10 (2019) . - 49 p. Mots-clés : Age  Autism spectrum disorders  Biological motion  Emotion recognition  Meta-analysis Index. décimale : PER Périodiques Résumé : Background: Biological motion, namely the movement of others, conveys information that allows the identification of affective states and intentions. This makes it an important avenue of research in autism spectrum disorder where social functioning is one of the main areas of difficulty. We aimed to create a quantitative summary of previous findings and investigate potential factors, which could explain the variable results found in the literature investigating biological motion perception in autism. Methods: A search from five electronic databases yielded 52 papers eligible for a quantitative summarisation, including behavioural, eye-tracking, electroencephalography and functional magnetic resonance imaging studies. Results: Using a three-level random effects meta-analytic approach, we found that individuals with autism generally showed decreased performance in perception and interpretation of biological motion. Results additionally suggest decreased performance when higher order information, such as emotion, is required. Moreover, with the increase of age, the difference between autistic and neurotypical individuals decreases, with children showing the largest effect size overall. Conclusion: We highlight the need for methodological standards and clear distinctions between the age groups and paradigms utilised when trying to interpret differences between the two populations. En ligne : http://dx.doi.org/10.1186/s13229-019-0299-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=414

IQ Predicts Biological Motion Perception in Autism Spectrum Disorders / M. RUTHERFORD in Journal of Autism and Developmental Disorders, 42-4 (April 2012)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 42-4 (April 2012) . - p.557-565 Titre : IQ Predicts Biological Motion Perception in Autism Spectrum Disorders Type de document : Texte imprimé et/ou numérique Auteurs : M. RUTHERFORD, Auteur ; Nikolaus TROJE, Auteur Année de publication : 2012 Article en page(s) : p.557-565 Langues : Anglais (eng) Mots-clés : Biological motion  Cognitive strategy  Social perception Index. décimale : PER Périodiques Résumé : Biological motion is easily perceived by neurotypical observers when encoded in point-light displays. Some but not all relevant research shows significant deficits in biological motion perception among those with ASD, especially with respect to emotional displays. We tested adults with and without ASD on the perception of masked biological motion and the perception of direction from coherent and scrambled biological motion. Within the autism spectrum group, there was a large and statistically significant relationship between IQ and the ability to perceive directionality in masked biological motion. There were no group differences in sensitivity to biological motion or the ability to identify the direction of motion. Possible explanations are discussed, including the possible use of compensatory strategies in high IQ ASD. En ligne : http://dx.doi.org/10.1007/s10803-011-1267-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=153 [article] IQ Predicts Biological Motion Perception in Autism Spectrum Disorders [Texte imprimé et/ou numérique] / M. RUTHERFORD, Auteur ; Nikolaus TROJE, Auteur . - 2012 . - p.557-565. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 42-4 (April 2012) . - p.557-565 Mots-clés : Biological motion  Cognitive strategy  Social perception Index. décimale : PER Périodiques Résumé : Biological motion is easily perceived by neurotypical observers when encoded in point-light displays. Some but not all relevant research shows significant deficits in biological motion perception among those with ASD, especially with respect to emotional displays. We tested adults with and without ASD on the perception of masked biological motion and the perception of direction from coherent and scrambled biological motion. Within the autism spectrum group, there was a large and statistically significant relationship between IQ and the ability to perceive directionality in masked biological motion. There were no group differences in sensitivity to biological motion or the ability to identify the direction of motion. Possible explanations are discussed, including the possible use of compensatory strategies in high IQ ASD. En ligne : http://dx.doi.org/10.1007/s10803-011-1267-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=153

Adaptation to the Speed of Biological Motion in Autism / Themis KARAMINIS in Journal of Autism and Developmental Disorders, 50-2 (February 2020)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 50-2 (February 2020) . - p.373-385 Titre : Adaptation to the Speed of Biological Motion in Autism Type de document : Texte imprimé et/ou numérique Auteurs : Themis KARAMINIS, Auteur ; Roberto ARRIGHI, Auteur ; Georgia FORTH, Auteur ; David BURR, Auteur ; Elizabeth PELLICANO, Auteur Article en page(s) : p.373-385 Langues : Anglais (eng) Mots-clés : Adaptation  Autism  Biological motion  Perception  Running speed Index. décimale : PER Périodiques Résumé : Autistic individuals often present atypicalities in adaptation-the continuous recalibration of perceptual systems driven by recent sensory experiences. Here, we examined such atypicalities in human biological motion. We used a dual-task paradigm, including a running-speed discrimination task ('comparing the speed of two running silhouettes') and a change-detection task ('detecting fixation-point shrinkages') assessing attention. We tested 19 school-age autistic and 19 age- and ability-matched typical participants, also recording eye-movements. The two groups presented comparable speed-discrimination abilities and, unexpectedly, comparable adaptation. Accuracy in the change-detection task and the scatter of eye-fixations around the fixation point were also similar across groups. Yet, the scatter of fixations reliably predicted the magnitude of adaptation, demonstrating the importance of controlling for attention in adaptation studies. En ligne : http://dx.doi.org/10.1007/s10803-019-04241-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=416 [article] Adaptation to the Speed of Biological Motion in Autism [Texte imprimé et/ou numérique] / Themis KARAMINIS, Auteur ; Roberto ARRIGHI, Auteur ; Georgia FORTH, Auteur ; David BURR, Auteur ; Elizabeth PELLICANO, Auteur . - p.373-385. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 50-2 (February 2020) . - p.373-385 Mots-clés : Adaptation  Autism  Biological motion  Perception  Running speed Index. décimale : PER Périodiques Résumé : Autistic individuals often present atypicalities in adaptation-the continuous recalibration of perceptual systems driven by recent sensory experiences. Here, we examined such atypicalities in human biological motion. We used a dual-task paradigm, including a running-speed discrimination task ('comparing the speed of two running silhouettes') and a change-detection task ('detecting fixation-point shrinkages') assessing attention. We tested 19 school-age autistic and 19 age- and ability-matched typical participants, also recording eye-movements. The two groups presented comparable speed-discrimination abilities and, unexpectedly, comparable adaptation. Accuracy in the change-detection task and the scatter of eye-fixations around the fixation point were also similar across groups. Yet, the scatter of fixations reliably predicted the magnitude of adaptation, demonstrating the importance of controlling for attention in adaptation studies. En ligne : http://dx.doi.org/10.1007/s10803-019-04241-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=416

Attentional influences on neural processing of biological motion in typically developing children and those on the autism spectrum / Emily J. KNIGHT in Molecular Autism, 13 (2022)  

Public ISBD [article]  inMolecular Autism > 13 (2022) . - 33 p. Titre : Attentional influences on neural processing of biological motion in typically developing children and those on the autism spectrum Type de document : Texte imprimé et/ou numérique Auteurs : Emily J. KNIGHT, Auteur ; Aaron I. KRAKOWSKI, Auteur ; Edward G. FREEDMAN, Auteur ; John S. BUTLER, Auteur ; Sophie MOLHOLM, Auteur ; John J. FOXE, Auteur Article en page(s) : 33 p. Langues : Anglais (eng) Mots-clés : Adolescent  Autism Spectrum Disorder  Autistic Disorder  Child  Cross-Sectional Studies  Electroencephalography  Humans  Social Skills  Asd  Biological motion  Erp  Event-related potentials  Social cognition  Vep  Visual evoked potential Index. décimale : PER Périodiques Résumé : BACKGROUND: Biological motion imparts rich information related to the movement, actions, intentions and affective state of others, which can provide foundational support for various aspects of social cognition and behavior. Given that atypical social communication and cognition are hallmark symptoms of autism spectrum disorder (ASD), many have theorized that a potential source of this deficit may lie in dysfunctional neural mechanisms of biological motion processing. Synthesis of existing literature provides some support for biological motion processing deficits in autism spectrum disorder, although high study heterogeneity and inconsistent findings complicate interpretation. Here, we attempted to reconcile some of this residual controversy by investigating a possible modulating role for attention in biological motion processing in ASD. METHODS: We employed high-density electroencephalographic recordings while participants observed point-light displays of upright, inverted and scrambled biological motion under two task conditions to explore spatiotemporal dynamics of intentional and unintentional biological motion processing in children and adolescents with ASD (n=27), comparing them to a control cohort of neurotypical (NT) participants (n=35). RESULTS: Behaviorally, ASD participants were able to discriminate biological motion with similar accuracy to NT controls. However, electrophysiologic investigation revealed reduced automatic selective processing of upright biologic versus scrambled motion stimuli in ASD relative to NT individuals, which was ameliorated when task demands required explicit attention to biological motion. Additionally, we observed distinctive patterns of covariance between visual potentials evoked by biological motion and functional social ability, such that Vineland Adaptive Behavior Scale-Socialization domain scores were differentially associated with biological motion processing in the N1 period in the ASD but not the NT group. LIMITATIONS: The cross-sectional design of this study does not allow us to definitively answer the question of whether developmental differences in attention to biological motion cause disruption in social communication, and the sample was limited to children with average or above cognitive ability. CONCLUSIONS: Together, these data suggest that individuals with ASD are able to discriminate, with explicit attention, biological from non-biological motion but demonstrate diminished automatic neural specificity for biological motion processing, which may have cascading implications for the development of higher-order social cognition. En ligne : http://dx.doi.org/10.1186/s13229-022-00512-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=491 [article] Attentional influences on neural processing of biological motion in typically developing children and those on the autism spectrum [Texte imprimé et/ou numérique] / Emily J. KNIGHT, Auteur ; Aaron I. KRAKOWSKI, Auteur ; Edward G. FREEDMAN, Auteur ; John S. BUTLER, Auteur ; Sophie MOLHOLM, Auteur ; John J. FOXE, Auteur . - 33 p. Langues : Anglais (eng) in Molecular Autism > 13 (2022) . - 33 p. Mots-clés : Adolescent  Autism Spectrum Disorder  Autistic Disorder  Child  Cross-Sectional Studies  Electroencephalography  Humans  Social Skills  Asd  Biological motion  Erp  Event-related potentials  Social cognition  Vep  Visual evoked potential Index. décimale : PER Périodiques Résumé : BACKGROUND: Biological motion imparts rich information related to the movement, actions, intentions and affective state of others, which can provide foundational support for various aspects of social cognition and behavior. Given that atypical social communication and cognition are hallmark symptoms of autism spectrum disorder (ASD), many have theorized that a potential source of this deficit may lie in dysfunctional neural mechanisms of biological motion processing. Synthesis of existing literature provides some support for biological motion processing deficits in autism spectrum disorder, although high study heterogeneity and inconsistent findings complicate interpretation. Here, we attempted to reconcile some of this residual controversy by investigating a possible modulating role for attention in biological motion processing in ASD. METHODS: We employed high-density electroencephalographic recordings while participants observed point-light displays of upright, inverted and scrambled biological motion under two task conditions to explore spatiotemporal dynamics of intentional and unintentional biological motion processing in children and adolescents with ASD (n=27), comparing them to a control cohort of neurotypical (NT) participants (n=35). RESULTS: Behaviorally, ASD participants were able to discriminate biological motion with similar accuracy to NT controls. However, electrophysiologic investigation revealed reduced automatic selective processing of upright biologic versus scrambled motion stimuli in ASD relative to NT individuals, which was ameliorated when task demands required explicit attention to biological motion. Additionally, we observed distinctive patterns of covariance between visual potentials evoked by biological motion and functional social ability, such that Vineland Adaptive Behavior Scale-Socialization domain scores were differentially associated with biological motion processing in the N1 period in the ASD but not the NT group. LIMITATIONS: The cross-sectional design of this study does not allow us to definitively answer the question of whether developmental differences in attention to biological motion cause disruption in social communication, and the sample was limited to children with average or above cognitive ability. CONCLUSIONS: Together, these data suggest that individuals with ASD are able to discriminate, with explicit attention, biological from non-biological motion but demonstrate diminished automatic neural specificity for biological motion processing, which may have cascading implications for the development of higher-order social cognition. En ligne : http://dx.doi.org/10.1186/s13229-022-00512-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=491

Children with autism spectrum disorders are less proficient in action identification and lacking a preference for upright point-light biological motion displays / Liang-Huei WANG in Research in Autism Spectrum Disorders, 11 (March 2015)  

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Differential electrophysiological responses to biological motion in children and adults with and without autism spectrum disorders / Masahiro HIRAI in Research in Autism Spectrum Disorders, 8-12 (December 2014)  

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Facilitation of biological motion processing by group-based autism specific social skills training / C. LUCKHARDT in Autism Research, 11-10 (October 2018)  

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Intact recognition, but attenuated adaptation, for biological motion in youth with autism spectrum disorder / Jeroen J. A. VAN BOXTEL in Autism Research, 9-10 (October 2016)  

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Mapping neural correlates of biological motion perception in autistic children using high-density diffuse optical tomography / Dalin YANG in Molecular Autism, 15 (2024)  

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