Increased context adjustment is associated with auditory sensitivities but not with autistic traits / Roshini RANDENIYA in Autism Research, 15-8 (August 2022)  

Public ISBD [article]  inAutism Research > 15-8 (August 2022) . - p.1457-1468 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 [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 spatial frequency differentiation and sex-related specificities in fearful face detection in autism: Insights from EEG and the predictive brain model / Sylvain HARQUEL ; Leonardo S. BARBOSA ; Klara KOVARSKI ; Marta I. GARRIDO ; Laurent VERCUEIL ; Louise KAUFFMANN ; Frédéric DUTHEIL ; Marie GOMOT ; Martial MERMILLOD in Autism Research, 17-9 (September 2024)  

Public ISBD [article]  inAutism Research > 17-9 (September 2024) . - p.1778-1795 Titre : Reduced spatial frequency differentiation and sex-related specificities in fearful face detection in autism: Insights from EEG and the predictive brain model Type de document : Texte imprimé et/ou numérique Auteurs : Sylvain HARQUEL, Auteur ; Leonardo S. BARBOSA, Auteur ; Klara KOVARSKI, Auteur ; Marta I. GARRIDO, Auteur ; Laurent VERCUEIL, Auteur ; Louise KAUFFMANN, Auteur ; Frédéric DUTHEIL, Auteur ; Marie GOMOT, Auteur ; Martial MERMILLOD, Auteur Article en page(s) : p.1778-1795 Langues : Anglais (eng) Mots-clés : autism  EEG  emotion recognition  fusiform  sex differences  spatial frequencies Index. décimale : PER Périodiques Résumé : Abstract Face processing relies on predictive processes driven by low spatial frequencies (LSF) that convey coarse information prior to fine information conveyed by high spatial frequencies. However, autistic individuals might have atypical predictive processes, contributing to facial processing difficulties. This may be more normalized in autistic females, who often exhibit better socio-communicational abilities than males. We hypothesized that autistic females would display a more typical coarse-to-fine processing for socio-emotional stimuli compared to autistic males. To test this hypothesis, we asked adult participants (44 autistic, 51 non-autistic) to detect fearful faces among neutral faces, filtered in two orders: from coarse-to-fine (CtF) and from fine-to-coarse (FtC). Results show lower d? values and longer reaction times for fearful detection in autism compared to non-autistic (NA) individuals, regardless of the filtering order. Both groups presented shorter P100 latency after CtF compared to FtC, and larger amplitude for N170 after FtC compared to CtF. However, autistic participants presented a reduced difference in source activity between CtF and FtC in the fusiform. There was also a more spatially spread activation pattern in autistic females compared to NA females. Finally, females had faster P100 and N170 latencies, as well as larger occipital activation for FtC sequences than males, irrespective of the group. Overall, the results do not suggest impaired predictive processes from LSF in autism despite behavioral differences in fear detection. However, they do indicate reduced brain modulation by spatial frequency in autism. In addition, the findings highlight sex differences that warrant consideration in understanding autistic females. En ligne : https://doi.org/10.1002/aur.3209 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=535 [article] Reduced spatial frequency differentiation and sex-related specificities in fearful face detection in autism: Insights from EEG and the predictive brain model [Texte imprimé et/ou numérique] / Sylvain HARQUEL, Auteur ; Leonardo S. BARBOSA, Auteur ; Klara KOVARSKI, Auteur ; Marta I. GARRIDO, Auteur ; Laurent VERCUEIL, Auteur ; Louise KAUFFMANN, Auteur ; Frédéric DUTHEIL, Auteur ; Marie GOMOT, Auteur ; Martial MERMILLOD, Auteur . - p.1778-1795. Langues : Anglais (eng) in Autism Research > 17-9 (September 2024) . - p.1778-1795 Mots-clés : autism  EEG  emotion recognition  fusiform  sex differences  spatial frequencies Index. décimale : PER Périodiques Résumé : Abstract Face processing relies on predictive processes driven by low spatial frequencies (LSF) that convey coarse information prior to fine information conveyed by high spatial frequencies. However, autistic individuals might have atypical predictive processes, contributing to facial processing difficulties. This may be more normalized in autistic females, who often exhibit better socio-communicational abilities than males. We hypothesized that autistic females would display a more typical coarse-to-fine processing for socio-emotional stimuli compared to autistic males. To test this hypothesis, we asked adult participants (44 autistic, 51 non-autistic) to detect fearful faces among neutral faces, filtered in two orders: from coarse-to-fine (CtF) and from fine-to-coarse (FtC). Results show lower d? values and longer reaction times for fearful detection in autism compared to non-autistic (NA) individuals, regardless of the filtering order. Both groups presented shorter P100 latency after CtF compared to FtC, and larger amplitude for N170 after FtC compared to CtF. However, autistic participants presented a reduced difference in source activity between CtF and FtC in the fusiform. There was also a more spatially spread activation pattern in autistic females compared to NA females. Finally, females had faster P100 and N170 latencies, as well as larger occipital activation for FtC sequences than males, irrespective of the group. Overall, the results do not suggest impaired predictive processes from LSF in autism despite behavioral differences in fear detection. However, they do indicate reduced brain modulation by spatial frequency in autism. In addition, the findings highlight sex differences that warrant consideration in understanding autistic females. En ligne : https://doi.org/10.1002/aur.3209 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=535

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