14 recherche sur le mot-clé 'Visual'

Auditory-visual misalignment: A theoretical perspective on vocabulary delays in children with ASD / Courtney E. VENKER in Autism Research, 11-12 (December 2018)  

Public ISBD [article]  inAutism Research > 11-12 (December 2018) . - p.1621-1628 Titre : Auditory-visual misalignment: A theoretical perspective on vocabulary delays in children with ASD Type de document : Texte imprimé et/ou numérique Auteurs : Courtney E. VENKER, Auteur ; Allison F. BEAN, Auteur ; S. T. KOVER, Auteur Article en page(s) : p.1621-1628 Langues : Anglais (eng) Mots-clés : attention  auditory  developmental psychology  language  learning  visual Index. décimale : PER Périodiques Résumé : In this commentary, we describe a novel theoretical perspective on vocabulary delays in children with autism spectrum disorder (ASD)-a perspective we refer to as auditory-visual misalignment. We synthesize empirical evidence that: (a) as a result of differences in both social and nonsocial visual attention, the auditory-visual statistics available to children with ASD for early word learning are misaligned; (b) this auditory-visual misalignment disrupts word learning and contributes to the vocabulary delays shown by children with ASD; and (c) adopting a perspective of auditory-visual misalignment has important theoretical and clinical implications for understanding and supporting vocabulary development in children with ASD. Theoretically, the auditory-visual misalignment perspective advances our understanding of how attentional differences impact vocabulary development in children with ASD in several ways. By adopting the point of view of the child, we provide a framework that brings together research on social and domain-general visual attention differences in children with ASD. In addition, the auditory-visual misalignment perspective moves current thinking beyond how misalignment disrupts vocabulary development in the moment, and considers the likely consequences of misalignment over developmental time. Finally, considering auditory-visual misalignment may assist in identifying active ingredients of existing language interventions or in developing new interventions that deliver high quality, aligned input. Future research is needed to determine how manipulating auditory-visual alignment changes word learning in ASD and whether the effects of auditory-visual misalignment are unique to ASD or shared with other neurodevelopmental disorders or sources of language impairment. Autism Research 2018, 11: 1621-1628. (c) 2018 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: This article describes a new way of thinking about vocabulary delays in children with autism spectrum disorder (ASD). We suggest that children with ASD may have difficulty learning words because their attention is not tuned in to what is most important for learning, creating a mismatch between what they see and what they hear. This perspective brings together research on different types of attentional differences in people with ASD. It may also help us to understand how language interventions work. En ligne : http://dx.doi.org/10.1002/aur.2038 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=372 [article] Auditory-visual misalignment: A theoretical perspective on vocabulary delays in children with ASD [Texte imprimé et/ou numérique] / Courtney E. VENKER, Auteur ; Allison F. BEAN, Auteur ; S. T. KOVER, Auteur . - p.1621-1628. Langues : Anglais (eng) in Autism Research > 11-12 (December 2018) . - p.1621-1628 Mots-clés : attention  auditory  developmental psychology  language  learning  visual Index. décimale : PER Périodiques Résumé : In this commentary, we describe a novel theoretical perspective on vocabulary delays in children with autism spectrum disorder (ASD)-a perspective we refer to as auditory-visual misalignment. We synthesize empirical evidence that: (a) as a result of differences in both social and nonsocial visual attention, the auditory-visual statistics available to children with ASD for early word learning are misaligned; (b) this auditory-visual misalignment disrupts word learning and contributes to the vocabulary delays shown by children with ASD; and (c) adopting a perspective of auditory-visual misalignment has important theoretical and clinical implications for understanding and supporting vocabulary development in children with ASD. Theoretically, the auditory-visual misalignment perspective advances our understanding of how attentional differences impact vocabulary development in children with ASD in several ways. By adopting the point of view of the child, we provide a framework that brings together research on social and domain-general visual attention differences in children with ASD. In addition, the auditory-visual misalignment perspective moves current thinking beyond how misalignment disrupts vocabulary development in the moment, and considers the likely consequences of misalignment over developmental time. Finally, considering auditory-visual misalignment may assist in identifying active ingredients of existing language interventions or in developing new interventions that deliver high quality, aligned input. Future research is needed to determine how manipulating auditory-visual alignment changes word learning in ASD and whether the effects of auditory-visual misalignment are unique to ASD or shared with other neurodevelopmental disorders or sources of language impairment. Autism Research 2018, 11: 1621-1628. (c) 2018 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: This article describes a new way of thinking about vocabulary delays in children with autism spectrum disorder (ASD). We suggest that children with ASD may have difficulty learning words because their attention is not tuned in to what is most important for learning, creating a mismatch between what they see and what they hear. This perspective brings together research on different types of attentional differences in people with ASD. It may also help us to understand how language interventions work. En ligne : http://dx.doi.org/10.1002/aur.2038 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=372

Impaired downregulation of visual cortex during auditory processing is associated with autism symptomatology in children and adolescents with autism spectrum disorder / R. Joanne JAO KEEHN in Autism Research, 10-1 (January 2017)  

Public ISBD [article]  inAutism Research > 10-1 (January 2017) . - p.130-143 Titre : Impaired downregulation of visual cortex during auditory processing is associated with autism symptomatology in children and adolescents with autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : R. Joanne JAO KEEHN, Auteur ; Sandra S. SANCHEZ, Auteur ; Claire R. STEWART, Auteur ; Weiqi ZHAO, Auteur ; Emily L. GRENESKO-STEVENS, Auteur ; Brandon KEEHN, Auteur ; Ralph-Axel MULLER, Auteur Article en page(s) : p.130-143 Langues : Anglais (eng) Mots-clés : autism spectrum disorders  development  visual  auditory  functional magnetic resonance imaging Index. décimale : PER Périodiques Résumé : Autism spectrum disorders (ASD) are pervasive developmental disorders characterized by impairments in language development and social interaction, along with restricted and stereotyped behaviors. These behaviors often include atypical responses to sensory stimuli; some children with ASD are easily overwhelmed by sensory stimuli, while others may seem unaware of their environment. Vision and audition are two sensory modalities important for social interactions and language, and are differentially affected in ASD. In the present study, 16 children and adolescents with ASD and 16 typically developing (TD) participants matched for age, gender, nonverbal IQ, and handedness were tested using a mixed event-related/blocked functional magnetic resonance imaging paradigm to examine basic perceptual processes that may form the foundation for later-developing cognitive abilities. Auditory (high or low pitch) and visual conditions (dot located high or low in the display) were presented, and participants indicated whether the stimuli were “high” or “low.” Results for the auditory condition showed downregulated activity of the visual cortex in the TD group, but upregulation in the ASD group. This atypical activity in visual cortex was associated with autism symptomatology. These findings suggest atypical crossmodal (auditory-visual) modulation linked to sociocommunicative deficits in ASD, in agreement with the general hypothesis of low-level sensorimotor impairments affecting core symptomatology. En ligne : http://dx.doi.org/10.1002/aur.1636 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=303 [article] Impaired downregulation of visual cortex during auditory processing is associated with autism symptomatology in children and adolescents with autism spectrum disorder [Texte imprimé et/ou numérique] / R. Joanne JAO KEEHN, Auteur ; Sandra S. SANCHEZ, Auteur ; Claire R. STEWART, Auteur ; Weiqi ZHAO, Auteur ; Emily L. GRENESKO-STEVENS, Auteur ; Brandon KEEHN, Auteur ; Ralph-Axel MULLER, Auteur . - p.130-143. Langues : Anglais (eng) in Autism Research > 10-1 (January 2017) . - p.130-143 Mots-clés : autism spectrum disorders  development  visual  auditory  functional magnetic resonance imaging Index. décimale : PER Périodiques Résumé : Autism spectrum disorders (ASD) are pervasive developmental disorders characterized by impairments in language development and social interaction, along with restricted and stereotyped behaviors. These behaviors often include atypical responses to sensory stimuli; some children with ASD are easily overwhelmed by sensory stimuli, while others may seem unaware of their environment. Vision and audition are two sensory modalities important for social interactions and language, and are differentially affected in ASD. In the present study, 16 children and adolescents with ASD and 16 typically developing (TD) participants matched for age, gender, nonverbal IQ, and handedness were tested using a mixed event-related/blocked functional magnetic resonance imaging paradigm to examine basic perceptual processes that may form the foundation for later-developing cognitive abilities. Auditory (high or low pitch) and visual conditions (dot located high or low in the display) were presented, and participants indicated whether the stimuli were “high” or “low.” Results for the auditory condition showed downregulated activity of the visual cortex in the TD group, but upregulation in the ASD group. This atypical activity in visual cortex was associated with autism symptomatology. These findings suggest atypical crossmodal (auditory-visual) modulation linked to sociocommunicative deficits in ASD, in agreement with the general hypothesis of low-level sensorimotor impairments affecting core symptomatology. En ligne : http://dx.doi.org/10.1002/aur.1636 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=303

Sensory Symptoms and Processing of Nonverbal Auditory and Visual Stimuli in Children with Autism Spectrum Disorder / Claire R. STEWART in Journal of Autism and Developmental Disorders, 46-5 (May 2016)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 46-5 (May 2016) . - p.1590-1601 Titre : Sensory Symptoms and Processing of Nonverbal Auditory and Visual Stimuli in Children with Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Claire R. STEWART, Auteur ; Sandra S. SANCHEZ, Auteur ; Emily L. GRENESKO, Auteur ; Christine M. BROWN, Auteur ; Colleen P. CHEN, Auteur ; Brandon KEEHN, Auteur ; Francisco VELASQUEZ, Auteur ; Alan J. LINCOLN, Auteur ; Ralph-Axel MULLER, Auteur Article en page(s) : p.1590-1601 Langues : Anglais (eng) Mots-clés : Autism  Visual  Auditory  Sensory integration  Bisensory facilitation  Sensory profile Index. décimale : PER Périodiques Résumé : Atypical sensory responses are common in autism spectrum disorder (ASD). While evidence suggests impaired auditory–visual integration for verbal information, findings for nonverbal stimuli are inconsistent. We tested for sensory symptoms in children with ASD (using the Adolescent/Adult Sensory Profile) and examined unisensory and bisensory processing with a nonverbal auditory–visual paradigm, for which neurotypical adults show bisensory facilitation. ASD participants reported more atypical sensory symptoms overall, most prominently in the auditory modality. On the experimental task, reduced response times for bisensory compared to unisensory trials were seen in both ASD and control groups, but neither group showed significant race model violation (evidence of intermodal integration). Findings do not support impaired bisensory processing for simple nonverbal stimuli in high-functioning children with ASD. En ligne : http://dx.doi.org/10.1007/s10803-015-2367-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=288 [article] Sensory Symptoms and Processing of Nonverbal Auditory and Visual Stimuli in Children with Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Claire R. STEWART, Auteur ; Sandra S. SANCHEZ, Auteur ; Emily L. GRENESKO, Auteur ; Christine M. BROWN, Auteur ; Colleen P. CHEN, Auteur ; Brandon KEEHN, Auteur ; Francisco VELASQUEZ, Auteur ; Alan J. LINCOLN, Auteur ; Ralph-Axel MULLER, Auteur . - p.1590-1601. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 46-5 (May 2016) . - p.1590-1601 Mots-clés : Autism  Visual  Auditory  Sensory integration  Bisensory facilitation  Sensory profile Index. décimale : PER Périodiques Résumé : Atypical sensory responses are common in autism spectrum disorder (ASD). While evidence suggests impaired auditory–visual integration for verbal information, findings for nonverbal stimuli are inconsistent. We tested for sensory symptoms in children with ASD (using the Adolescent/Adult Sensory Profile) and examined unisensory and bisensory processing with a nonverbal auditory–visual paradigm, for which neurotypical adults show bisensory facilitation. ASD participants reported more atypical sensory symptoms overall, most prominently in the auditory modality. On the experimental task, reduced response times for bisensory compared to unisensory trials were seen in both ASD and control groups, but neither group showed significant race model violation (evidence of intermodal integration). Findings do not support impaired bisensory processing for simple nonverbal stimuli in high-functioning children with ASD. En ligne : http://dx.doi.org/10.1007/s10803-015-2367-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=288

The rubber hand illusion in children with autism spectrum disorders: delayed influence of combined tactile and visual input on proprioception / Carissa J. CASCIO in Autism, 16-4 (July 2012)  

Public ISBD [article]  inAutism > 16-4 (July 2012) . - p.406-419 Titre : The rubber hand illusion in children with autism spectrum disorders: delayed influence of combined tactile and visual input on proprioception Type de document : Texte imprimé et/ou numérique Auteurs : Carissa J. CASCIO, Auteur ; Jennifer H. FOSS-FEIG, Auteur ; Courtney BURNETTE, Auteur ; Jessica L. HEACOCK, Auteur ; Akua A. COSBY, Auteur Année de publication : 2012 Article en page(s) : p.406-419 Langues : Anglais (eng) Mots-clés : autism  proprioceptive  visual  tactile  multisensory integration  empathy  proprioréception Index. décimale : PER Périodiques Résumé : In the rubber hand illusion, perceived hand ownership can be transferred to a rubber hand after synchronous visual and tactile stimulation. Perceived body ownership and self–other relation are foundational for development of self-awareness, imitation, and empathy, which are all affected in autism spectrum disorders (ASD). We examined the rubber hand illusion in children with and without ASD. Children with ASD were initially less susceptible to the illusion than the comparison group, yet showed the effects of the illusion after 6 minutes. Delayed susceptibility to the illusion may result from atypical multisensory temporal integration and/or an unusually strong reliance on proprioception. Children with ASD who displayed less empathy were significantly less likely to experience the illusion than those with more intact ability to express empathy. A better understanding of body representation in ASD may elucidate neural underpinnings of social deficits, thus informing future intervention approaches. En ligne : http://dx.doi.org/10.1177/1362361311430404 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=178 [article] The rubber hand illusion in children with autism spectrum disorders: delayed influence of combined tactile and visual input on proprioception [Texte imprimé et/ou numérique] / Carissa J. CASCIO, Auteur ; Jennifer H. FOSS-FEIG, Auteur ; Courtney BURNETTE, Auteur ; Jessica L. HEACOCK, Auteur ; Akua A. COSBY, Auteur . - 2012 . - p.406-419. Langues : Anglais (eng) in Autism > 16-4 (July 2012) . - p.406-419 Mots-clés : autism  proprioceptive  visual  tactile  multisensory integration  empathy  proprioréception Index. décimale : PER Périodiques Résumé : In the rubber hand illusion, perceived hand ownership can be transferred to a rubber hand after synchronous visual and tactile stimulation. Perceived body ownership and self–other relation are foundational for development of self-awareness, imitation, and empathy, which are all affected in autism spectrum disorders (ASD). We examined the rubber hand illusion in children with and without ASD. Children with ASD were initially less susceptible to the illusion than the comparison group, yet showed the effects of the illusion after 6 minutes. Delayed susceptibility to the illusion may result from atypical multisensory temporal integration and/or an unusually strong reliance on proprioception. Children with ASD who displayed less empathy were significantly less likely to experience the illusion than those with more intact ability to express empathy. A better understanding of body representation in ASD may elucidate neural underpinnings of social deficits, thus informing future intervention approaches. En ligne : http://dx.doi.org/10.1177/1362361311430404 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=178

Correlations Between Audiovisual Temporal Processing and Sensory Responsiveness in Adolescents with Autistic Traits / H. Y. ZHOU in Journal of Autism and Developmental Disorders, 51-7 (July 2021)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 51-7 (July 2021) . - p.2450-2460 Titre : Correlations Between Audiovisual Temporal Processing and Sensory Responsiveness in Adolescents with Autistic Traits Type de document : Texte imprimé et/ou numérique Auteurs : H. Y. ZHOU, Auteur ; H. X. YANG, Auteur ; L. J. SHI, Auteur ; S. S. Y. LUI, Auteur ; Eric F. C. CHEUNG, Auteur ; R. C. K. CHAN, Auteur Article en page(s) : p.2450-2460 Langues : Anglais (eng) Mots-clés : Adolescent  Auditory Perception/physiology  Autism Spectrum Disorder/physiopathology  Female  Humans  Judgment  Male  Sensation/physiology  Sensory Thresholds  Task Performance and Analysis  Time Perception/physiology  Visual Perception/physiology  Audiovisual  Auditory  Autistic traits  Sensory responsiveness  Temporal acuity  Visual Index. décimale : PER Périodiques Résumé : Atypical sensory processing has recently gained much research interest as a key domain of autistic symptoms. Individuals with autism spectrum disorder (ASD) exhibit difficulties in processing the temporal aspects of sensory inputs, and show altered behavioural responses to sensory stimuli (i.e., sensory responsiveness). The present study examined the relation between sensory responsiveness (assessed by the Adult/Adolescent Sensory Profile) and audiovisual temporal integration (measured by unisensory temporal order judgement (TOJ) tasks and audiovisual simultaneity judgement (SJ) tasks) in typically-developing adolescents (n?=?94). We found that adolescents with higher levels of autistic traits exhibited more difficulties in separating visual stimuli in time (i.e., larger visual TOJ threshold) and showed a stronger bias to perceive sound-leading audiovisual pairings as simultaneous. Regarding the associations between different measures of sensory function, reduced visual temporal acuity, but not auditory or multisensory temporal processing, was significantly correlated with more atypical patterns of sensory responsiveness. Furthermore, the positive correlation between visual TOJ thresholds and sensory avoidance was only found in adolescents with relatively high levels of autistic traits, but not in those with relatively low levels of autistic traits. These findings suggest that reduced visual temporal acuity may contribute to altered sensory experiences and may be linked to broader behavioural characteristics of ASD. En ligne : http://dx.doi.org/10.1007/s10803-020-04724-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=452 [article] Correlations Between Audiovisual Temporal Processing and Sensory Responsiveness in Adolescents with Autistic Traits [Texte imprimé et/ou numérique] / H. Y. ZHOU, Auteur ; H. X. YANG, Auteur ; L. J. SHI, Auteur ; S. S. Y. LUI, Auteur ; Eric F. C. CHEUNG, Auteur ; R. C. K. CHAN, Auteur . - p.2450-2460. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 51-7 (July 2021) . - p.2450-2460 Mots-clés : Adolescent  Auditory Perception/physiology  Autism Spectrum Disorder/physiopathology  Female  Humans  Judgment  Male  Sensation/physiology  Sensory Thresholds  Task Performance and Analysis  Time Perception/physiology  Visual Perception/physiology  Audiovisual  Auditory  Autistic traits  Sensory responsiveness  Temporal acuity  Visual Index. décimale : PER Périodiques Résumé : Atypical sensory processing has recently gained much research interest as a key domain of autistic symptoms. Individuals with autism spectrum disorder (ASD) exhibit difficulties in processing the temporal aspects of sensory inputs, and show altered behavioural responses to sensory stimuli (i.e., sensory responsiveness). The present study examined the relation between sensory responsiveness (assessed by the Adult/Adolescent Sensory Profile) and audiovisual temporal integration (measured by unisensory temporal order judgement (TOJ) tasks and audiovisual simultaneity judgement (SJ) tasks) in typically-developing adolescents (n?=?94). We found that adolescents with higher levels of autistic traits exhibited more difficulties in separating visual stimuli in time (i.e., larger visual TOJ threshold) and showed a stronger bias to perceive sound-leading audiovisual pairings as simultaneous. Regarding the associations between different measures of sensory function, reduced visual temporal acuity, but not auditory or multisensory temporal processing, was significantly correlated with more atypical patterns of sensory responsiveness. Furthermore, the positive correlation between visual TOJ thresholds and sensory avoidance was only found in adolescents with relatively high levels of autistic traits, but not in those with relatively low levels of autistic traits. These findings suggest that reduced visual temporal acuity may contribute to altered sensory experiences and may be linked to broader behavioural characteristics of ASD. En ligne : http://dx.doi.org/10.1007/s10803-020-04724-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=452

Attentional shifts between audition and vision in Autism Spectrum Disorders / Valeria OCCELLI in Research in Autism Spectrum Disorders, 7-4 (April 2013)  

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Differential profiles of response inhibition deficit between male children with autism spectrum disorders and schizophrenia / Li-Juan SHI in Autism Research, 13-4 (April 2020)  

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Multisensory Speech Perception in Children with Autism Spectrum Disorders / Tiffany G. WOYNAROSKI in Journal of Autism and Developmental Disorders, 43-12 (December 2013)  

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Neutral versus emotional human stimuli processing in children with pervasive developmental disorders not otherwise specified / Léonard VANNETZEL in Research in Autism Spectrum Disorders, 5-2 (April-June 2011)  

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Social-valence-related increased attention in rett syndrome cynomolgus monkeys: An eye-tracking study / B. ZHANG in Autism Research, 12-11 (November 2019)  

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