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Increased context adjustment is associated with auditory sensitivities but not with autistic traits / Roshini RANDENIYA in Autism Research, 15-8 (August 2022)
[article]
Titre : Increased context adjustment is associated with auditory sensitivities but not with autistic traits Type de document : Texte imprimé et/ou numérique Auteurs : Roshini RANDENIYA, Auteur ; Jason B. MATTINGLEY, Auteur ; Marta I. GARRIDO, Auteur Article en page(s) : p.1457-1468 Langues : Anglais (eng) Mots-clés : Acoustic Stimulation/methods Auditory Perception/physiology Autism Spectrum Disorder Bayes Theorem Electroencephalography Evoked Potentials, Auditory/physiology Humans Bayesian Eeg Mmn atypical perception autism precision prediction errors predictive coding Index. décimale : PER Périodiques Résumé : Bayesian models of autism suggest that alterations in context-sensitive prediction error weighting may underpin sensory perceptual alterations, such as hypersensitivities. We used an auditory oddball paradigm with pure tones arising from high or low uncertainty contexts to determine whether autistic individuals display differences in context adjustment relative to neurotypicals. We did not find group differences in early prediction error responses indexed by mismatch negativity. A dimensional approach revealed a positive correlation between context-dependent prediction errors and subjective reports of auditory sensitivities, but not with autistic traits. These findings suggest that autism studies may benefit from accounting for sensory sensitivities in group comparisons. LAY SUMMARY: We aimed to understand if autistic and non-autistic groups showed differences in their electrical brain activity measured by electroencephalography (EEG) when listening to surprising tones infrequently embedded in a statistical pattern. We found no differences between the autistic and the non-autistic group in their EEG response to the surprising sound even if the pattern switched, indicating their ability to learn a pattern. We did find that, as subjective sensory sensitivities (but not autistic traits) increased, there were increasingly large differences between the EEG responses to surprising tones that were embedded in the different statistical patterns of tones. These findings show that perceptual alterations may be a function of sensory sensitivities, but not necessarily autistic traits. We suggest that future EEG studies in autism may benefit from accounting for sensory sensitivities. En ligne : http://dx.doi.org/10.1002/aur.2759 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=483
in Autism Research > 15-8 (August 2022) . - p.1457-1468[article] Increased context adjustment is associated with auditory sensitivities but not with autistic traits [Texte imprimé et/ou numérique] / Roshini RANDENIYA, Auteur ; Jason B. MATTINGLEY, Auteur ; Marta I. GARRIDO, Auteur . - p.1457-1468.
Langues : Anglais (eng)
in Autism Research > 15-8 (August 2022) . - p.1457-1468
Mots-clés : Acoustic Stimulation/methods Auditory Perception/physiology Autism Spectrum Disorder Bayes Theorem Electroencephalography Evoked Potentials, Auditory/physiology Humans Bayesian Eeg Mmn atypical perception autism precision prediction errors predictive coding Index. décimale : PER Périodiques Résumé : Bayesian models of autism suggest that alterations in context-sensitive prediction error weighting may underpin sensory perceptual alterations, such as hypersensitivities. We used an auditory oddball paradigm with pure tones arising from high or low uncertainty contexts to determine whether autistic individuals display differences in context adjustment relative to neurotypicals. We did not find group differences in early prediction error responses indexed by mismatch negativity. A dimensional approach revealed a positive correlation between context-dependent prediction errors and subjective reports of auditory sensitivities, but not with autistic traits. These findings suggest that autism studies may benefit from accounting for sensory sensitivities in group comparisons. LAY SUMMARY: We aimed to understand if autistic and non-autistic groups showed differences in their electrical brain activity measured by electroencephalography (EEG) when listening to surprising tones infrequently embedded in a statistical pattern. We found no differences between the autistic and the non-autistic group in their EEG response to the surprising sound even if the pattern switched, indicating their ability to learn a pattern. We did find that, as subjective sensory sensitivities (but not autistic traits) increased, there were increasingly large differences between the EEG responses to surprising tones that were embedded in the different statistical patterns of tones. These findings show that perceptual alterations may be a function of sensory sensitivities, but not necessarily autistic traits. We suggest that future EEG studies in autism may benefit from accounting for sensory sensitivities. En ligne : http://dx.doi.org/10.1002/aur.2759 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=483 Reduced mismatch negativity in children and adolescents with autism spectrum disorder is associated with their impaired adaptive functioning / Jonathan LASSEN in Autism Research, 15-8 (August 2022)
[article]
Titre : Reduced mismatch negativity in children and adolescents with autism spectrum disorder is associated with their impaired adaptive functioning Type de document : Texte imprimé et/ou numérique Auteurs : Jonathan LASSEN, Auteur ; Bob ORANJE, Auteur ; Martin VESTERGAARD, Auteur ; Malene FOLDAGER, Auteur ; Troels W. KJAER, Auteur ; Sidse ARNFRED, Auteur ; Bodil AGGERNAES, Auteur Article en page(s) : p.1469-1481 Langues : Anglais (eng) Mots-clés : Acoustic Stimulation/methods Adolescent Autism Spectrum Disorder/complications Autistic Disorder Brain Child Electroencephalography/methods Humans Asd Eeg adaptive behavior autism mismatch negativity Index. décimale : PER Périodiques Résumé : Children and adolescents on the autism spectrum display sensory disturbances, rigid and repetitive behavior, social communication problems and a high prevalence of impaired adaptive functioning. Autism is associated with slowed behavioral and neural habituation to repeated sensory input and decreased responses to sensory deviations. Mismatch negativity (MMN) reflects a pre-attentive difference in the neural response to sensory deviations relative to regularities and studies overall suggest that children and adolescents with autism tend to have smaller MMN. However, it remains unclear whether reduced MMN in autism is coupled to severity of specific autistic symptoms or more generally to lower level of adaptive functioning. To address these questions, the present study used electroencephalography (EEG) to assess whether auditory MMN in 59 children and adolescents with autism aged 7-14years compared to 59 typically developing children and adolescents were related to specific autistic symptoms or level in adaptive functioning. As hypothesized, the autism group had a lower MMN amplitude than controls. Smaller MMN amplitudes were specifically associated with lower adaptive functioning in the autistic subjects but not in controls while no apparent relationships were observed with autistic-like social interaction and communication problems, atypical language, rigidity, stereotypy or sensory sensitivity symptoms. Our findings indicate that a blunted response to changes in sensory input may underlie or contribute to the generalized difficulties with adapting to daily life circumstances seen in children and adolescents with autism. LAY SUMMARY: Children and adolescents on the autism spectrum have a high prevalence of impaired adaptive functioning. Neuroimaging studies have reported that children and adolescents with autism display attenuated brain activity when discriminating sensory input. However, it is unknown whether this attenuation is related to autistic symptoms and/or adaptive functioning. The present study used electroencephalogram (EEG) to show that attenuated brain response in discrimination of novel compared to repetitive sounds in children and adolescents with autism is related to their impaired adaptive functioning. En ligne : http://dx.doi.org/10.1002/aur.2738 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=483
in Autism Research > 15-8 (August 2022) . - p.1469-1481[article] Reduced mismatch negativity in children and adolescents with autism spectrum disorder is associated with their impaired adaptive functioning [Texte imprimé et/ou numérique] / Jonathan LASSEN, Auteur ; Bob ORANJE, Auteur ; Martin VESTERGAARD, Auteur ; Malene FOLDAGER, Auteur ; Troels W. KJAER, Auteur ; Sidse ARNFRED, Auteur ; Bodil AGGERNAES, Auteur . - p.1469-1481.
Langues : Anglais (eng)
in Autism Research > 15-8 (August 2022) . - p.1469-1481
Mots-clés : Acoustic Stimulation/methods Adolescent Autism Spectrum Disorder/complications Autistic Disorder Brain Child Electroencephalography/methods Humans Asd Eeg adaptive behavior autism mismatch negativity Index. décimale : PER Périodiques Résumé : Children and adolescents on the autism spectrum display sensory disturbances, rigid and repetitive behavior, social communication problems and a high prevalence of impaired adaptive functioning. Autism is associated with slowed behavioral and neural habituation to repeated sensory input and decreased responses to sensory deviations. Mismatch negativity (MMN) reflects a pre-attentive difference in the neural response to sensory deviations relative to regularities and studies overall suggest that children and adolescents with autism tend to have smaller MMN. However, it remains unclear whether reduced MMN in autism is coupled to severity of specific autistic symptoms or more generally to lower level of adaptive functioning. To address these questions, the present study used electroencephalography (EEG) to assess whether auditory MMN in 59 children and adolescents with autism aged 7-14years compared to 59 typically developing children and adolescents were related to specific autistic symptoms or level in adaptive functioning. As hypothesized, the autism group had a lower MMN amplitude than controls. Smaller MMN amplitudes were specifically associated with lower adaptive functioning in the autistic subjects but not in controls while no apparent relationships were observed with autistic-like social interaction and communication problems, atypical language, rigidity, stereotypy or sensory sensitivity symptoms. Our findings indicate that a blunted response to changes in sensory input may underlie or contribute to the generalized difficulties with adapting to daily life circumstances seen in children and adolescents with autism. LAY SUMMARY: Children and adolescents on the autism spectrum have a high prevalence of impaired adaptive functioning. Neuroimaging studies have reported that children and adolescents with autism display attenuated brain activity when discriminating sensory input. However, it is unknown whether this attenuation is related to autistic symptoms and/or adaptive functioning. The present study used electroencephalogram (EEG) to show that attenuated brain response in discrimination of novel compared to repetitive sounds in children and adolescents with autism is related to their impaired adaptive functioning. En ligne : http://dx.doi.org/10.1002/aur.2738 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=483