Approaches to Understanding Multisensory Dysfunction in Autism Spectrum Disorder / Justin K. SIEMANN in Autism Research, 13-9 (September 2020)  

Public ISBD [article]  inAutism Research > 13-9 (September 2020) . - p.1430-1449 Titre : Approaches to Understanding Multisensory Dysfunction in Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Justin K. SIEMANN, Auteur ; Jeremy VEENSTRA-VANDERWEELE, Auteur ; Mark T. WALLACE, Auteur Article en page(s) : p.1430-1449 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Abnormal sensory responses are a DSM-5 symptom of autism spectrum disorder (ASD), and research findings demonstrate altered sensory processing in ASD. Beyond difficulties with processing information within single sensory domains, including both hypersensitivity and hyposensitivity, difficulties in multisensory processing are becoming a core issue of focus in ASD. These difficulties may be targeted by treatment approaches such as “sensory integration,” which is frequently applied in autism treatment but not yet based on clear evidence. Recently, psychophysical data have emerged to demonstrate multisensory deficits in some children with ASD. Unlike deficits in social communication, which are best understood in humans, sensory and multisensory changes offer a tractable marker of circuit dysfunction that is more easily translated into animal model systems to probe the underlying neurobiological mechanisms. Paralleling experimental paradigms that were previously applied in humans and larger mammals, we and others have demonstrated that multisensory function can also be examined behaviorally in rodents. Here, we review the sensory and multisensory difficulties commonly found in ASD, examining laboratory findings that relate these findings across species. Next, we discuss the known neurobiology of multisensory integration, drawing largely on experimental work in larger mammals, and extensions of these paradigms into rodents. Finally, we describe emerging investigations into multisensory processing in genetic mouse models related to autism risk. By detailing findings from humans to mice, we highlight the advantage of multisensory paradigms that can be easily translated across species, as well as the potential for rodent experimental systems to reveal opportunities for novel treatments. Lay Summary Sensory and multisensory deficits are commonly found in ASD and may result in cascading effects that impact social communication. By using similar experiments to those in humans, we discuss how studies in animal models may allow an understanding of the brain mechanisms that underlie difficulties in multisensory integration, with the ultimate goal of developing new treatments. Autism Res 2020, 13: 1430–1449. © 2020 International Society for Autism Research, Wiley Periodicals, Inc. En ligne : http://dx.doi.org/10.1002/aur.2375 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=431 [article] Approaches to Understanding Multisensory Dysfunction in Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Justin K. SIEMANN, Auteur ; Jeremy VEENSTRA-VANDERWEELE, Auteur ; Mark T. WALLACE, Auteur . - p.1430-1449. Langues : Anglais (eng) in Autism Research > 13-9 (September 2020) . - p.1430-1449 Index. décimale : PER Périodiques Résumé : Abnormal sensory responses are a DSM-5 symptom of autism spectrum disorder (ASD), and research findings demonstrate altered sensory processing in ASD. Beyond difficulties with processing information within single sensory domains, including both hypersensitivity and hyposensitivity, difficulties in multisensory processing are becoming a core issue of focus in ASD. These difficulties may be targeted by treatment approaches such as “sensory integration,” which is frequently applied in autism treatment but not yet based on clear evidence. Recently, psychophysical data have emerged to demonstrate multisensory deficits in some children with ASD. Unlike deficits in social communication, which are best understood in humans, sensory and multisensory changes offer a tractable marker of circuit dysfunction that is more easily translated into animal model systems to probe the underlying neurobiological mechanisms. Paralleling experimental paradigms that were previously applied in humans and larger mammals, we and others have demonstrated that multisensory function can also be examined behaviorally in rodents. Here, we review the sensory and multisensory difficulties commonly found in ASD, examining laboratory findings that relate these findings across species. Next, we discuss the known neurobiology of multisensory integration, drawing largely on experimental work in larger mammals, and extensions of these paradigms into rodents. Finally, we describe emerging investigations into multisensory processing in genetic mouse models related to autism risk. By detailing findings from humans to mice, we highlight the advantage of multisensory paradigms that can be easily translated across species, as well as the potential for rodent experimental systems to reveal opportunities for novel treatments. Lay Summary Sensory and multisensory deficits are commonly found in ASD and may result in cascading effects that impact social communication. By using similar experiments to those in humans, we discuss how studies in animal models may allow an understanding of the brain mechanisms that underlie difficulties in multisensory integration, with the ultimate goal of developing new treatments. Autism Res 2020, 13: 1430–1449. © 2020 International Society for Autism Research, Wiley Periodicals, Inc. En ligne : http://dx.doi.org/10.1002/aur.2375 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=431

Brief Report: Arrested Development of Audiovisual Speech Perception in Autism Spectrum Disorders / Ryan A. STEVENSON in Journal of Autism and Developmental Disorders, 44-6 (June 2014)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 44-6 (June 2014) . - p.1470-1477 Titre : Brief Report: Arrested Development of Audiovisual Speech Perception in Autism Spectrum Disorders Type de document : Texte imprimé et/ou numérique Auteurs : Ryan A. STEVENSON, Auteur ; Justin K. SIEMANN, Auteur ; Tiffany G. WOYNAROSKI, Auteur ; Brittany C. SCHNEIDER, Auteur ; Haley E. EBERLY, Auteur ; Stephen M. CAMARATA, Auteur ; Mark T. WALLACE, Auteur Article en page(s) : p.1470-1477 Langues : Anglais (eng) Mots-clés : Autism  Sensory processing  Multisensory integration  Speech perception  Audiovisual  McGurk effect Index. décimale : PER Périodiques Résumé : Atypical communicative abilities are a core marker of Autism Spectrum Disorders (ASD). A number of studies have shown that, in addition to auditory comprehension differences, individuals with autism frequently show atypical responses to audiovisual speech, suggesting a multisensory contribution to these communicative differences from their typically developing peers. To shed light on possible differences in the maturation of audiovisual speech integration, we tested younger (ages 6–12) and older (ages 13–18) children with and without ASD on a task indexing such multisensory integration. To do this, we used the McGurk effect, in which the pairing of incongruent auditory and visual speech tokens typically results in the perception of a fused percept distinct from the auditory and visual signals, indicative of active integration of the two channels conveying speech information. Whereas little difference was seen in audiovisual speech processing (i.e., reports of McGurk fusion) between the younger ASD and TD groups, there was a significant difference at the older ages. While TD controls exhibited an increased rate of fusion (i.e., integration) with age, children with ASD failed to show this increase. These data suggest arrested development of audiovisual speech integration in ASD. The results are discussed in light of the extant literature and necessary next steps in research. En ligne : http://dx.doi.org/10.1007/s10803-013-1992-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=233 [article] Brief Report: Arrested Development of Audiovisual Speech Perception in Autism Spectrum Disorders [Texte imprimé et/ou numérique] / Ryan A. STEVENSON, Auteur ; Justin K. SIEMANN, Auteur ; Tiffany G. WOYNAROSKI, Auteur ; Brittany C. SCHNEIDER, Auteur ; Haley E. EBERLY, Auteur ; Stephen M. CAMARATA, Auteur ; Mark T. WALLACE, Auteur . - p.1470-1477. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 44-6 (June 2014) . - p.1470-1477 Mots-clés : Autism  Sensory processing  Multisensory integration  Speech perception  Audiovisual  McGurk effect Index. décimale : PER Périodiques Résumé : Atypical communicative abilities are a core marker of Autism Spectrum Disorders (ASD). A number of studies have shown that, in addition to auditory comprehension differences, individuals with autism frequently show atypical responses to audiovisual speech, suggesting a multisensory contribution to these communicative differences from their typically developing peers. To shed light on possible differences in the maturation of audiovisual speech integration, we tested younger (ages 6–12) and older (ages 13–18) children with and without ASD on a task indexing such multisensory integration. To do this, we used the McGurk effect, in which the pairing of incongruent auditory and visual speech tokens typically results in the perception of a fused percept distinct from the auditory and visual signals, indicative of active integration of the two channels conveying speech information. Whereas little difference was seen in audiovisual speech processing (i.e., reports of McGurk fusion) between the younger ASD and TD groups, there was a significant difference at the older ages. While TD controls exhibited an increased rate of fusion (i.e., integration) with age, children with ASD failed to show this increase. These data suggest arrested development of audiovisual speech integration in ASD. The results are discussed in light of the extant literature and necessary next steps in research. En ligne : http://dx.doi.org/10.1007/s10803-013-1992-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=233

Evidence for Diminished Multisensory Integration in Autism Spectrum Disorders / Ryan A. STEVENSON in Journal of Autism and Developmental Disorders, 44-12 (December 2014)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 44-12 (December 2014) . - p.3161-3167 Titre : Evidence for Diminished Multisensory Integration in Autism Spectrum Disorders Type de document : Texte imprimé et/ou numérique Auteurs : Ryan A. STEVENSON, Auteur ; Justin K. SIEMANN, Auteur ; Tiffany G. WOYNAROSKI, Auteur ; Brittany C. SCHNEIDER, Auteur ; Haley E. EBERLY, Auteur ; Stephen M. CAMARATA, Auteur ; Mark T. WALLACE, Auteur Article en page(s) : p.3161-3167 Langues : Anglais (eng) Mots-clés : Autism spectrum disorders  Sensory processing  Audiovisual  Multisensory integration  Audition  Vision Index. décimale : PER Périodiques Résumé : Individuals with autism spectrum disorders (ASD) exhibit alterations in sensory processing, including changes in the integration of information across the different sensory modalities. In the current study, we used the sound-induced flash illusion to assess multisensory integration in children with ASD and typically-developing (TD) controls. Thirty-one children with ASD and 31 age and IQ matched TD children (average age = 12 years) were presented with simple visual (i.e., flash) and auditory (i.e., beep) stimuli of varying number. In illusory conditions, a single flash was presented with 2–4 beeps. In TD children, these conditions generally result in the perception of multiple flashes, implying a perceptual fusion across vision and audition. In the present study, children with ASD were significantly less likely to perceive the illusion relative to TD controls, suggesting that multisensory integration and cross-modal binding may be weaker in some children with ASD. These results are discussed in the context of previous findings for multisensory integration in ASD and future directions for research. En ligne : http://dx.doi.org/10.1007/s10803-014-2179-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=243 [article] Evidence for Diminished Multisensory Integration in Autism Spectrum Disorders [Texte imprimé et/ou numérique] / Ryan A. STEVENSON, Auteur ; Justin K. SIEMANN, Auteur ; Tiffany G. WOYNAROSKI, Auteur ; Brittany C. SCHNEIDER, Auteur ; Haley E. EBERLY, Auteur ; Stephen M. CAMARATA, Auteur ; Mark T. WALLACE, Auteur . - p.3161-3167. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 44-12 (December 2014) . - p.3161-3167 Mots-clés : Autism spectrum disorders  Sensory processing  Audiovisual  Multisensory integration  Audition  Vision Index. décimale : PER Périodiques Résumé : Individuals with autism spectrum disorders (ASD) exhibit alterations in sensory processing, including changes in the integration of information across the different sensory modalities. In the current study, we used the sound-induced flash illusion to assess multisensory integration in children with ASD and typically-developing (TD) controls. Thirty-one children with ASD and 31 age and IQ matched TD children (average age = 12 years) were presented with simple visual (i.e., flash) and auditory (i.e., beep) stimuli of varying number. In illusory conditions, a single flash was presented with 2–4 beeps. In TD children, these conditions generally result in the perception of multiple flashes, implying a perceptual fusion across vision and audition. In the present study, children with ASD were significantly less likely to perceive the illusion relative to TD controls, suggesting that multisensory integration and cross-modal binding may be weaker in some children with ASD. These results are discussed in the context of previous findings for multisensory integration in ASD and future directions for research. En ligne : http://dx.doi.org/10.1007/s10803-014-2179-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=243

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