Autonomic and Electrophysiological Evidence for Reduced Auditory Habituation in Autism / Tapan K. GANDHI 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.2218-2228 Titre : Autonomic and Electrophysiological Evidence for Reduced Auditory Habituation in Autism Type de document : texte imprimé Auteurs : Tapan K. GANDHI, Auteur ; Kleovoulos TSOURIDES, Auteur ; Nidhi SINGHAL, Auteur ; Annie CARDINAUX, Auteur ; Wasifa JAMAL, Auteur ; Dimitrios PANTAZIS, Auteur ; Margaret KJELGAARD, Auteur ; Pawan SINHA, Auteur Article en page(s) : p.2218-2228 Langues : Anglais (eng) Mots-clés : Adolescent  Autistic Disorder/physiopathology  Case-Control Studies  Child  Female  Galvanic Skin Response  Habituation, Psychophysiologic/physiology  Humans  Magnetoencephalography  Male  Perception/physiology  Young Adult  Autism  Gsr  Habituation  Hypersensitivities  Meg Index. décimale : PER Périodiques Résumé : It is estimated that nearly 90% of children on the autism spectrum exhibit sensory atypicalities. What aspects of sensory processing are affected in autism? Although sensory processing can be studied along multiple dimensions, two of the most basic ones involve examining instantaneous sensory responses and how the responses change over time. These correspond to the dimensions of 'sensitivity' and 'habituation'. Results thus far have indicated that autistic individuals do not differ systematically from controls in sensory acuity/sensitivity. However, data from studies of habituation have been equivocal. We have studied habituation in autism using two measures: galvanic skin response (GSR) and magneto-encephalography (MEG). We report data from two independent studies. The first study, was conducted with 13 autistic and 13 age-matched neurotypical young adults and used GSR to assess response to an extended metronomic sequence. The second study involved 24 participants (12 with an ASD diagnosis), different from those in study 1, spanning the pre-adolescent to young adult age range, and used MEG. Both studies reveal consistent patterns of reduced habituation in autistic participants. These results suggest that autism, through mechanisms that are yet to be elucidated, compromises a fundamental aspect of sensory processing, at least in the auditory domain. We discuss the implications for understanding sensory hypersensitivities, a hallmark phenotypic feature of autism, recently proposed theoretical accounts, and potential relevance for early detection of risk for autism. En ligne : http://dx.doi.org/10.1007/s10803-020-04636-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=452 [article] Autonomic and Electrophysiological Evidence for Reduced Auditory Habituation in Autism [texte imprimé] / Tapan K. GANDHI, Auteur ; Kleovoulos TSOURIDES, Auteur ; Nidhi SINGHAL, Auteur ; Annie CARDINAUX, Auteur ; Wasifa JAMAL, Auteur ; Dimitrios PANTAZIS, Auteur ; Margaret KJELGAARD, Auteur ; Pawan SINHA, Auteur . - p.2218-2228. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 51-7 (July 2021) . - p.2218-2228 Mots-clés : Adolescent  Autistic Disorder/physiopathology  Case-Control Studies  Child  Female  Galvanic Skin Response  Habituation, Psychophysiologic/physiology  Humans  Magnetoencephalography  Male  Perception/physiology  Young Adult  Autism  Gsr  Habituation  Hypersensitivities  Meg Index. décimale : PER Périodiques Résumé : It is estimated that nearly 90% of children on the autism spectrum exhibit sensory atypicalities. What aspects of sensory processing are affected in autism? Although sensory processing can be studied along multiple dimensions, two of the most basic ones involve examining instantaneous sensory responses and how the responses change over time. These correspond to the dimensions of 'sensitivity' and 'habituation'. Results thus far have indicated that autistic individuals do not differ systematically from controls in sensory acuity/sensitivity. However, data from studies of habituation have been equivocal. We have studied habituation in autism using two measures: galvanic skin response (GSR) and magneto-encephalography (MEG). We report data from two independent studies. The first study, was conducted with 13 autistic and 13 age-matched neurotypical young adults and used GSR to assess response to an extended metronomic sequence. The second study involved 24 participants (12 with an ASD diagnosis), different from those in study 1, spanning the pre-adolescent to young adult age range, and used MEG. Both studies reveal consistent patterns of reduced habituation in autistic participants. These results suggest that autism, through mechanisms that are yet to be elucidated, compromises a fundamental aspect of sensory processing, at least in the auditory domain. We discuss the implications for understanding sensory hypersensitivities, a hallmark phenotypic feature of autism, recently proposed theoretical accounts, and potential relevance for early detection of risk for autism. En ligne : http://dx.doi.org/10.1007/s10803-020-04636-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=452

Intact Visual Correlation Detection in Autistic Adults / Lukas VOGELSANG in Autism Research, 19-9 (September 2026)  

Public ISBD [article]  inAutism Research > 19-9 (September 2026) . - p. e70339 Titre : Intact Visual Correlation Detection in Autistic Adults Type de document : texte imprimé Auteurs : Lukas VOGELSANG, Auteur ; Marin VOGELSANG, Auteur ; Cindy E. LI, Auteur ; Margaret KJELGAARD, Auteur ; Annie CARDINAUX, Auteur ; Charles A. NELSON, Auteur ; Pawan SINHA, Auteur Article en page(s) : p. e70339 Langues : Anglais (eng) Mots-clés : autism spectrum disorder  coincidence detection  sensory correlations  temporal processing  visual perception Index. décimale : PER Périodiques Résumé : ABSTRACT The ability to detect recurring temporal co-occurrence, or temporal correlation, of sensory events is fundamental for organizing perceptual input into coherent representations. Although past work has revealed differences across several aspects of temporal processing in autism, it is unknown whether autistic and non-autistic individuals differ in the key computation of correlation detection. Here, we examined this question in the visual domain using an online task. A total of 143 age- and sex-matched adults (73 autistic, 70 non-autistic) viewed sequences in which three visual elements stochastically alternated between bright and dark states. Two of these were disks, and the third was a surrounding annulus. Participants indicated which of the two disks co-occurred more reliably with the annulus. Accuracy increased systematically with correlation strength in both groups, but there were no significant group differences and no negative association between performance and autistic trait scores when controlling for nonverbal IQ. These findings suggest that visual correlation detection, under the conditions tested here, is preserved in autistic adults. This points to a key aspect of temporal processing in autism that may provide a stable foundation for perceptual organization even amid challenges reported in other timing-related domains, such as higher-level temporal prediction. These results set the stage for future research to identify the mechanisms underlying both preserved and divergent temporal processes, and to translate these findings into evidence-based support that builds on the observed strengths of autistic individuals. En ligne : https://doi.org/10.1002/aur.70339 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=593 [article] Intact Visual Correlation Detection in Autistic Adults [texte imprimé] / Lukas VOGELSANG, Auteur ; Marin VOGELSANG, Auteur ; Cindy E. LI, Auteur ; Margaret KJELGAARD, Auteur ; Annie CARDINAUX, Auteur ; Charles A. NELSON, Auteur ; Pawan SINHA, Auteur . - p. e70339. Langues : Anglais (eng) in Autism Research > 19-9 (September 2026) . - p. e70339 Mots-clés : autism spectrum disorder  coincidence detection  sensory correlations  temporal processing  visual perception Index. décimale : PER Périodiques Résumé : ABSTRACT The ability to detect recurring temporal co-occurrence, or temporal correlation, of sensory events is fundamental for organizing perceptual input into coherent representations. Although past work has revealed differences across several aspects of temporal processing in autism, it is unknown whether autistic and non-autistic individuals differ in the key computation of correlation detection. Here, we examined this question in the visual domain using an online task. A total of 143 age- and sex-matched adults (73 autistic, 70 non-autistic) viewed sequences in which three visual elements stochastically alternated between bright and dark states. Two of these were disks, and the third was a surrounding annulus. Participants indicated which of the two disks co-occurred more reliably with the annulus. Accuracy increased systematically with correlation strength in both groups, but there were no significant group differences and no negative association between performance and autistic trait scores when controlling for nonverbal IQ. These findings suggest that visual correlation detection, under the conditions tested here, is preserved in autistic adults. This points to a key aspect of temporal processing in autism that may provide a stable foundation for perceptual organization even amid challenges reported in other timing-related domains, such as higher-level temporal prediction. These results set the stage for future research to identify the mechanisms underlying both preserved and divergent temporal processes, and to translate these findings into evidence-based support that builds on the observed strengths of autistic individuals. En ligne : https://doi.org/10.1002/aur.70339 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=593

Interceptive abilities in autism spectrum disorder: Comparing naturalistic and virtual visuomotor tasks / Se-Woong PARK in Autism Research, 17-12 (December 2024)  

Public ISBD [article]  inAutism Research > 17-12 (December 2024) . - p.2514-2534 Titre : Interceptive abilities in autism spectrum disorder: Comparing naturalistic and virtual visuomotor tasks Type de document : texte imprimé Auteurs : Se-Woong PARK, Auteur ; Annie CARDINAUX, Auteur ; Dena CROZIER, Auteur ; Marta RUSSO, Auteur ; Sabrina BOND, Auteur ; Margaret KJELGAARD, Auteur ; Pawan SINHA, Auteur ; Dagmar STERNAD, Auteur Article en page(s) : p.2514-2534 Langues : Anglais (eng) Mots-clés : autism  interception  motor behavior  naturalistic environment  praxis  prediction  virtual environment Index. décimale : PER Périodiques Résumé : Abstract A growing body of research reveals that autistic individuals exhibit motor coordination challenges. Multiple theoretical frameworks propose that the seemingly disparate features of autism may arise from a common underlying process: a diminished ability to make predictions. Sensorimotor skills, such as catching a ball, critically rely on predicting the ball's trajectory as well as anticipatory coordination of the entire body. Here, we assessed four different naturalistic and virtual interception tasks with 31 neurotypical and 23 autistic children (ages 7 12). In a naturalistic setting, participants caught the ball either with their hands or a hand-held funnel with an enlarged catch area that also prevented the ball from bouncing off. A virtual setup reduced whole-body demands, as children only moved a paddle to catch or bounce a ball on a screen. Control tasks, involving rapid reaching to grasp a static object and quiet standing, which largely eliminated the requirements for prediction, were also tested. Results from all task variations demonstrated that autistic children completed fewer successful interceptions, suggesting that predictive requirements, inherent to all interception tasks, played a critical role. Effect sizes in the virtual tasks were smaller. Correlations of the task metrics with behavioral assessments rendered the strongest correlations with Praxis scores. The control tasks showed no differences between autistic and neurotypical children. These findings lend support to the emerging hypothesis that predictive challenges are present in autism. Further research with larger sample sizes will help identify to what extent these visuomotor differences may inform core domains of autism. En ligne : https://dx.doi.org/10.1002/aur.3246 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=544 [article] Interceptive abilities in autism spectrum disorder: Comparing naturalistic and virtual visuomotor tasks [texte imprimé] / Se-Woong PARK, Auteur ; Annie CARDINAUX, Auteur ; Dena CROZIER, Auteur ; Marta RUSSO, Auteur ; Sabrina BOND, Auteur ; Margaret KJELGAARD, Auteur ; Pawan SINHA, Auteur ; Dagmar STERNAD, Auteur . - p.2514-2534. Langues : Anglais (eng) in Autism Research > 17-12 (December 2024) . - p.2514-2534 Mots-clés : autism  interception  motor behavior  naturalistic environment  praxis  prediction  virtual environment Index. décimale : PER Périodiques Résumé : Abstract A growing body of research reveals that autistic individuals exhibit motor coordination challenges. Multiple theoretical frameworks propose that the seemingly disparate features of autism may arise from a common underlying process: a diminished ability to make predictions. Sensorimotor skills, such as catching a ball, critically rely on predicting the ball's trajectory as well as anticipatory coordination of the entire body. Here, we assessed four different naturalistic and virtual interception tasks with 31 neurotypical and 23 autistic children (ages 7 12). In a naturalistic setting, participants caught the ball either with their hands or a hand-held funnel with an enlarged catch area that also prevented the ball from bouncing off. A virtual setup reduced whole-body demands, as children only moved a paddle to catch or bounce a ball on a screen. Control tasks, involving rapid reaching to grasp a static object and quiet standing, which largely eliminated the requirements for prediction, were also tested. Results from all task variations demonstrated that autistic children completed fewer successful interceptions, suggesting that predictive requirements, inherent to all interception tasks, played a critical role. Effect sizes in the virtual tasks were smaller. Correlations of the task metrics with behavioral assessments rendered the strongest correlations with Praxis scores. The control tasks showed no differences between autistic and neurotypical children. These findings lend support to the emerging hypothesis that predictive challenges are present in autism. Further research with larger sample sizes will help identify to what extent these visuomotor differences may inform core domains of autism. En ligne : https://dx.doi.org/10.1002/aur.3246 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=544

Reduced Sensory Habituation in Autism and Its Correlation with Behavioral Measures / Wasifa JAMAL in Journal of Autism and Developmental Disorders, 51-9 (September 2021)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 51-9 (September 2021) . - p.3153-3164 Titre : Reduced Sensory Habituation in Autism and Its Correlation with Behavioral Measures Type de document : texte imprimé Auteurs : Wasifa JAMAL, Auteur ; Annie CARDINAUX, Auteur ; Amanda J. HASKINS, Auteur ; Margaret KJELGAARD, Auteur ; Pawan SINHA, Auteur Article en page(s) : p.3153-3164 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder  Autistic Disorder  Child  Cognition  Electroencephalography  Habituation, Psychophysiologic  Humans  Audition  Autism  Hyper and hypo-sensitivity  Sensory habituation  Vision Index. décimale : PER Périodiques Résumé : Autism is strongly associated with sensory processing difficulties. We investigate sensory habituation, given its relevance for understanding important phenotypic traits like hyper- and hypo-sensitivities. We collected electroencephalography data from 22 neuro-typical(NT) and 13 autistic(ASD) children during the presentation of visual and auditory sequences of repeated stimuli. Our data show that the ASD children have significantly reduced habituation relative to the NT children for both auditory and visual stimuli. These results point to impaired habituation as a modality-general phenomenon in ASD. Additionally, the rates of habituation are correlated with several clinical scores associated with competence along diverse phenotypic dimensions. These data suggest that the sensory difficulties in autism are likely to be associated with reduced habituation and are related to clinical symptomology. En ligne : http://dx.doi.org/10.1007/s10803-020-04780-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=453 [article] Reduced Sensory Habituation in Autism and Its Correlation with Behavioral Measures [texte imprimé] / Wasifa JAMAL, Auteur ; Annie CARDINAUX, Auteur ; Amanda J. HASKINS, Auteur ; Margaret KJELGAARD, Auteur ; Pawan SINHA, Auteur . - p.3153-3164. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 51-9 (September 2021) . - p.3153-3164 Mots-clés : Autism Spectrum Disorder  Autistic Disorder  Child  Cognition  Electroencephalography  Habituation, Psychophysiologic  Humans  Audition  Autism  Hyper and hypo-sensitivity  Sensory habituation  Vision Index. décimale : PER Périodiques Résumé : Autism is strongly associated with sensory processing difficulties. We investigate sensory habituation, given its relevance for understanding important phenotypic traits like hyper- and hypo-sensitivities. We collected electroencephalography data from 22 neuro-typical(NT) and 13 autistic(ASD) children during the presentation of visual and auditory sequences of repeated stimuli. Our data show that the ASD children have significantly reduced habituation relative to the NT children for both auditory and visual stimuli. These results point to impaired habituation as a modality-general phenomenon in ASD. Additionally, the rates of habituation are correlated with several clinical scores associated with competence along diverse phenotypic dimensions. These data suggest that the sensory difficulties in autism are likely to be associated with reduced habituation and are related to clinical symptomology. En ligne : http://dx.doi.org/10.1007/s10803-020-04780-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=453

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