Keeping time in the brain: Autism spectrum disorder and audiovisual temporal processing / Ryan A. STEVENSON in Autism Research, 9-7 (July 2016)  

Public ISBD [article]  inAutism Research > 9-7 (July 2016) . - p.720-738 Titre : Keeping time in the brain: Autism spectrum disorder and audiovisual temporal processing Type de document : Texte imprimé et/ou numérique Auteurs : Ryan A. STEVENSON, Auteur ; Magali SEGERS, Auteur ; Susanne FERBER, Auteur ; Morgan D. BARENSE, Auteur ; Stephen M. CAMARATA, Auteur ; Mark T. WALLACE, Auteur Article en page(s) : p.720-738 Langues : Anglais (eng) Mots-clés : low-level perception  cognitive neuroscience  developmental psychology  social cognition Index. décimale : PER Périodiques Résumé : A growing area of interest and relevance in the study of autism spectrum disorder (ASD) focuses on the relationship between multisensory temporal function and the behavioral, perceptual, and cognitive impairments observed in ASD. Atypical sensory processing is becoming increasingly recognized as a core component of autism, with evidence of atypical processing across a number of sensory modalities. These deviations from typical processing underscore the value of interpreting ASD within a multisensory framework. Furthermore, converging evidence illustrates that these differences in audiovisual processing may be specifically related to temporal processing. This review seeks to bridge the connection between temporal processing and audiovisual perception, and to elaborate on emerging data showing differences in audiovisual temporal function in autism. We also discuss the consequence of such changes, the specific impact on the processing of different classes of audiovisual stimuli (e.g. speech vs. nonspeech, etc.), and the presumptive brain processes and networks underlying audiovisual temporal integration. Finally, possible downstream behavioral implications, and possible remediation strategies are outlined. Autism Res 2016, 9: 720–738. © 2015 International Society for Autism Research, Wiley Periodicals, Inc. En ligne : http://dx.doi.org/10.1002/aur.1566 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=292 [article] Keeping time in the brain: Autism spectrum disorder and audiovisual temporal processing [Texte imprimé et/ou numérique] / Ryan A. STEVENSON, Auteur ; Magali SEGERS, Auteur ; Susanne FERBER, Auteur ; Morgan D. BARENSE, Auteur ; Stephen M. CAMARATA, Auteur ; Mark T. WALLACE, Auteur . - p.720-738. Langues : Anglais (eng) in Autism Research > 9-7 (July 2016) . - p.720-738 Mots-clés : low-level perception  cognitive neuroscience  developmental psychology  social cognition Index. décimale : PER Périodiques Résumé : A growing area of interest and relevance in the study of autism spectrum disorder (ASD) focuses on the relationship between multisensory temporal function and the behavioral, perceptual, and cognitive impairments observed in ASD. Atypical sensory processing is becoming increasingly recognized as a core component of autism, with evidence of atypical processing across a number of sensory modalities. These deviations from typical processing underscore the value of interpreting ASD within a multisensory framework. Furthermore, converging evidence illustrates that these differences in audiovisual processing may be specifically related to temporal processing. This review seeks to bridge the connection between temporal processing and audiovisual perception, and to elaborate on emerging data showing differences in audiovisual temporal function in autism. We also discuss the consequence of such changes, the specific impact on the processing of different classes of audiovisual stimuli (e.g. speech vs. nonspeech, etc.), and the presumptive brain processes and networks underlying audiovisual temporal integration. Finally, possible downstream behavioral implications, and possible remediation strategies are outlined. Autism Res 2016, 9: 720–738. © 2015 International Society for Autism Research, Wiley Periodicals, Inc. En ligne : http://dx.doi.org/10.1002/aur.1566 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=292

Linking Anxiety and Insistence on Sameness in Autistic Children: The Role of Sensory Hypersensitivity / Karen R. BLACK in Journal of Autism and Developmental Disorders, 47-8 (August 2017)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 47-8 (August 2017) . - p.2459-2470 Titre : Linking Anxiety and Insistence on Sameness in Autistic Children: The Role of Sensory Hypersensitivity Type de document : Texte imprimé et/ou numérique Auteurs : Karen R. BLACK, Auteur ; Ryan A. STEVENSON, Auteur ; Magali SEGERS, Auteur ; Busiswe L. NCUBE, Auteur ; Sol Z. SUN, Auteur ; Aviva PHILIPP-MULLER, Auteur ; James M. BEBKO, Auteur ; Morgan D. BARENSE, Auteur ; Susanne FERBER, Auteur Article en page(s) : p.2459-2470 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder  Hypersensitivity  Anxiety  Insistence on sameness  Sensory processing Index. décimale : PER Périodiques Résumé : Sensory hypersensitivity and insistence on sameness (I/S) are common, co-occurring features of autism, yet the relationship between them is poorly understood. This study assessed the impact of sensory hypersensitivity on the clinical symptoms of specific phobia, separation anxiety, social anxiety and I/S for autistic and typically developing (TD) children. Parents of 79 children completed questionnaires on their child’s difficulties related to sensory processing, I/S, and anxiety. Results demonstrated that sensory hypersensitivity mediated 67% of the relationship between symptoms of specific phobia and I/S and 57% of the relationship between separation anxiety and I/S. No relationship was observed between sensory hypersensitivity and social anxiety. These mediation effects of sensory hypersensitivity were found only in autistic children, not in TD children. En ligne : https://doi.org/10.1007/s10803-017-3161-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=314 [article] Linking Anxiety and Insistence on Sameness in Autistic Children: The Role of Sensory Hypersensitivity [Texte imprimé et/ou numérique] / Karen R. BLACK, Auteur ; Ryan A. STEVENSON, Auteur ; Magali SEGERS, Auteur ; Busiswe L. NCUBE, Auteur ; Sol Z. SUN, Auteur ; Aviva PHILIPP-MULLER, Auteur ; James M. BEBKO, Auteur ; Morgan D. BARENSE, Auteur ; Susanne FERBER, Auteur . - p.2459-2470. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 47-8 (August 2017) . - p.2459-2470 Mots-clés : Autism spectrum disorder  Hypersensitivity  Anxiety  Insistence on sameness  Sensory processing Index. décimale : PER Périodiques Résumé : Sensory hypersensitivity and insistence on sameness (I/S) are common, co-occurring features of autism, yet the relationship between them is poorly understood. This study assessed the impact of sensory hypersensitivity on the clinical symptoms of specific phobia, separation anxiety, social anxiety and I/S for autistic and typically developing (TD) children. Parents of 79 children completed questionnaires on their child’s difficulties related to sensory processing, I/S, and anxiety. Results demonstrated that sensory hypersensitivity mediated 67% of the relationship between symptoms of specific phobia and I/S and 57% of the relationship between separation anxiety and I/S. No relationship was observed between sensory hypersensitivity and social anxiety. These mediation effects of sensory hypersensitivity were found only in autistic children, not in TD children. En ligne : https://doi.org/10.1007/s10803-017-3161-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=314

Multisensory speech perception in autism spectrum disorder: From phoneme to whole-word perception / Ryan A. STEVENSON in Autism Research, 10-7 (July 2017)  

Public ISBD [article]  inAutism Research > 10-7 (July 2017) . - p.1280-1290 Titre : Multisensory speech perception in autism spectrum disorder: From phoneme to whole-word perception Type de document : Texte imprimé et/ou numérique Auteurs : Ryan A. STEVENSON, Auteur ; Sarah H. BAUM, Auteur ; Magali SEGERS, Auteur ; Susanne FERBER, Auteur ; Morgan D. BARENSE, Auteur ; Mark T. WALLACE, Auteur Article en page(s) : p.1280-1290 Langues : Anglais (eng) Mots-clés : autism spectrum disorders  speech perception  multisensory integration  inverse effectiveness  sensory integration  sensory processing Index. décimale : PER Périodiques Résumé : Speech perception in noisy environments is boosted when a listener can see the speaker's mouth and integrate the auditory and visual speech information. Autistic children have a diminished capacity to integrate sensory information across modalities, which contributes to core symptoms of autism, such as impairments in social communication. We investigated the abilities of autistic and typically-developing (TD) children to integrate auditory and visual speech stimuli in various signal-to-noise ratios (SNR). Measurements of both whole-word and phoneme recognition were recorded. At the level of whole-word recognition, autistic children exhibited reduced performance in both the auditory and audiovisual modalities. Importantly, autistic children showed reduced behavioral benefit from multisensory integration with whole-word recognition, specifically at low SNRs. At the level of phoneme recognition, autistic children exhibited reduced performance relative to their TD peers in auditory, visual, and audiovisual modalities. However, and in contrast to their performance at the level of whole-word recognition, both autistic and TD children showed benefits from multisensory integration for phoneme recognition. In accordance with the principle of inverse effectiveness, both groups exhibited greater benefit at low SNRs relative to high SNRs. Thus, while autistic children showed typical multisensory benefits during phoneme recognition, these benefits did not translate to typical multisensory benefit of whole-word recognition in noisy environments. We hypothesize that sensory impairments in autistic children raise the SNR threshold needed to extract meaningful information from a given sensory input, resulting in subsequent failure to exhibit behavioral benefits from additional sensory information at the level of whole-word recognition. En ligne : http://dx.doi.org/10.1002/aur.1776 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=309 [article] Multisensory speech perception in autism spectrum disorder: From phoneme to whole-word perception [Texte imprimé et/ou numérique] / Ryan A. STEVENSON, Auteur ; Sarah H. BAUM, Auteur ; Magali SEGERS, Auteur ; Susanne FERBER, Auteur ; Morgan D. BARENSE, Auteur ; Mark T. WALLACE, Auteur . - p.1280-1290. Langues : Anglais (eng) in Autism Research > 10-7 (July 2017) . - p.1280-1290 Mots-clés : autism spectrum disorders  speech perception  multisensory integration  inverse effectiveness  sensory integration  sensory processing Index. décimale : PER Périodiques Résumé : Speech perception in noisy environments is boosted when a listener can see the speaker's mouth and integrate the auditory and visual speech information. Autistic children have a diminished capacity to integrate sensory information across modalities, which contributes to core symptoms of autism, such as impairments in social communication. We investigated the abilities of autistic and typically-developing (TD) children to integrate auditory and visual speech stimuli in various signal-to-noise ratios (SNR). Measurements of both whole-word and phoneme recognition were recorded. At the level of whole-word recognition, autistic children exhibited reduced performance in both the auditory and audiovisual modalities. Importantly, autistic children showed reduced behavioral benefit from multisensory integration with whole-word recognition, specifically at low SNRs. At the level of phoneme recognition, autistic children exhibited reduced performance relative to their TD peers in auditory, visual, and audiovisual modalities. However, and in contrast to their performance at the level of whole-word recognition, both autistic and TD children showed benefits from multisensory integration for phoneme recognition. In accordance with the principle of inverse effectiveness, both groups exhibited greater benefit at low SNRs relative to high SNRs. Thus, while autistic children showed typical multisensory benefits during phoneme recognition, these benefits did not translate to typical multisensory benefit of whole-word recognition in noisy environments. We hypothesize that sensory impairments in autistic children raise the SNR threshold needed to extract meaningful information from a given sensory input, resulting in subsequent failure to exhibit behavioral benefits from additional sensory information at the level of whole-word recognition. En ligne : http://dx.doi.org/10.1002/aur.1776 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=309

Seeing the Forest and the Trees: Default Local Processing in Individuals with High Autistic Traits Does Not Come at the Expense of Global Attention / R. A. STEVENSON in Journal of Autism and Developmental Disorders, 48-4 (April 2018)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 48-4 (April 2018) . - p.1382-1396 Titre : Seeing the Forest and the Trees: Default Local Processing in Individuals with High Autistic Traits Does Not Come at the Expense of Global Attention Type de document : Texte imprimé et/ou numérique Auteurs : R. A. STEVENSON, Auteur ; S. Z. SUN, Auteur ; N. HAZLETT, Auteur ; J. S. CANT, Auteur ; Morgan D. BARENSE, Auteur ; S. FERBER, Auteur Article en page(s) : p.1382-1396 Langues : Anglais (eng) Mots-clés : Attention  Autism spectrum disorder  Composite-face effect  Face recognition  Global processing  Local processing  Sensory processing  Vision Index. décimale : PER Périodiques Résumé : Atypical sensory perception is one of the most ubiquitous symptoms of autism, including a tendency towards a local-processing bias. We investigated whether local-processing biases were associated with global-processing impairments on a global/local attentional-scope paradigm in conjunction with a composite-face task. Behavioural results were related to individuals' levels of autistic traits, specifically the Attention to Detail subscale of the Autism Quotient, and the Sensory Profile Questionnaire. Individuals showing high rates of Attention to Detail were more susceptible to global attentional-scope manipulations, suggesting that local-processing biases associated with Attention to Detail do not come at the cost of a global-processing deficit, but reflect a difference in default global versus local bias. This relationship operated at the attentional/perceptual level, but not response criterion. En ligne : http://dx.doi.org/10.1007/s10803-016-2711-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=352 [article] Seeing the Forest and the Trees: Default Local Processing in Individuals with High Autistic Traits Does Not Come at the Expense of Global Attention [Texte imprimé et/ou numérique] / R. A. STEVENSON, Auteur ; S. Z. SUN, Auteur ; N. HAZLETT, Auteur ; J. S. CANT, Auteur ; Morgan D. BARENSE, Auteur ; S. FERBER, Auteur . - p.1382-1396. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 48-4 (April 2018) . - p.1382-1396 Mots-clés : Attention  Autism spectrum disorder  Composite-face effect  Face recognition  Global processing  Local processing  Sensory processing  Vision Index. décimale : PER Périodiques Résumé : Atypical sensory perception is one of the most ubiquitous symptoms of autism, including a tendency towards a local-processing bias. We investigated whether local-processing biases were associated with global-processing impairments on a global/local attentional-scope paradigm in conjunction with a composite-face task. Behavioural results were related to individuals' levels of autistic traits, specifically the Attention to Detail subscale of the Autism Quotient, and the Sensory Profile Questionnaire. Individuals showing high rates of Attention to Detail were more susceptible to global attentional-scope manipulations, suggesting that local-processing biases associated with Attention to Detail do not come at the cost of a global-processing deficit, but reflect a difference in default global versus local bias. This relationship operated at the attentional/perceptual level, but not response criterion. En ligne : http://dx.doi.org/10.1007/s10803-016-2711-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=352

The cascading influence of multisensory processing on speech perception in autism / R. A. STEVENSON in Autism, 22-5 (July 2018)  

Public ISBD [article]  inAutism > 22-5 (July 2018) . - p.609-624 Titre : The cascading influence of multisensory processing on speech perception in autism Type de document : Texte imprimé et/ou numérique Auteurs : R. A. STEVENSON, Auteur ; M. SEGERS, Auteur ; B. L. NCUBE, Auteur ; Karen R. BLACK, Auteur ; James M. BEBKO, Auteur ; S. FERBER, Auteur ; Morgan D. BARENSE, Auteur Article en page(s) : p.609-624 Langues : Anglais (eng) Mots-clés : audiovisual  autism spectrum disorder  multisensory  sensory integration  speech perception  temporal processing Index. décimale : PER Périodiques Résumé : It has been recently theorized that atypical sensory processing in autism relates to difficulties in social communication. Through a series of tasks concurrently assessing multisensory temporal processes, multisensory integration and speech perception in 76 children with and without autism, we provide the first behavioral evidence of such a link. Temporal processing abilities in children with autism contributed to impairments in speech perception. This relationship was significantly mediated by their abilities to integrate social information across auditory and visual modalities. These data describe the cascading impact of sensory abilities in autism, whereby temporal processing impacts multisensory information of social information, which, in turn, contributes to deficits in speech perception. These relationships were found to be specific to autism, specific to multisensory but not unisensory integration, and specific to the processing of social information. En ligne : http://dx.doi.org/10.1177/1362361317704413 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=366 [article] The cascading influence of multisensory processing on speech perception in autism [Texte imprimé et/ou numérique] / R. A. STEVENSON, Auteur ; M. SEGERS, Auteur ; B. L. NCUBE, Auteur ; Karen R. BLACK, Auteur ; James M. BEBKO, Auteur ; S. FERBER, Auteur ; Morgan D. BARENSE, Auteur . - p.609-624. Langues : Anglais (eng) in Autism > 22-5 (July 2018) . - p.609-624 Mots-clés : audiovisual  autism spectrum disorder  multisensory  sensory integration  speech perception  temporal processing Index. décimale : PER Périodiques Résumé : It has been recently theorized that atypical sensory processing in autism relates to difficulties in social communication. Through a series of tasks concurrently assessing multisensory temporal processes, multisensory integration and speech perception in 76 children with and without autism, we provide the first behavioral evidence of such a link. Temporal processing abilities in children with autism contributed to impairments in speech perception. This relationship was significantly mediated by their abilities to integrate social information across auditory and visual modalities. These data describe the cascading impact of sensory abilities in autism, whereby temporal processing impacts multisensory information of social information, which, in turn, contributes to deficits in speech perception. These relationships were found to be specific to autism, specific to multisensory but not unisensory integration, and specific to the processing of social information. En ligne : http://dx.doi.org/10.1177/1362361317704413 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=366

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