Attribution of intentions in autism spectrum disorder: A study of event-related potentials / João Miguel FERNANDES in Autism Research, 15-5 (May 2022)  

Public ISBD [article]  inAutism Research > 15-5 (May 2022) . - p.847-860 Titre : Attribution of intentions in autism spectrum disorder: A study of event-related potentials Type de document : Texte imprimé et/ou numérique Auteurs : João Miguel FERNANDES, Auteur ; Sara SOARES, Auteur ; Ricardo LOPES, Auteur ; Rita JERÓNIMO, Auteur ; J. Bernardo BARAHONA-CORREA, Auteur Article en page(s) : p.847-860 Langues : Anglais (eng) Mots-clés : Adult  Autism Spectrum Disorder  Autistic Disorder  Evoked Potentials/physiology  Female  Humans  Intention  Male  Social Perception  attribution of intentions  autism spectrum disorders  event related potentials  social cognition & theory of mind Index. décimale : PER Périodiques Résumé : Autism spectrum disorder (ASD) is characterized by social cognition deficits, including difficulties inferring the intentions of others. Although deficits in attribution of intentions (AI) have been consistently replicated in ASD, their exact nature remains unexplored. Here we registered the electrophysiological correlates of a nonverbal social cognition task to investigate AI in autistic adults. Twenty-one male autistic adults and 30 male neurotypical volunteers performed a comic strips task depicting either intentional action (AI) or physical causality with or without human characters, while their electroencephalographic signal was recorded. Compared to neurotypical volunteers, autistic participants were significantly less accurate in correctly identifying congruence in the AI condition, but not in the physical causality conditions. In the AI condition a bilateral posterior positive event-related potential (ERP) occurred 200-400?ms post-stimulus (the ERP intention effect) in both groups. This waveform comprised a P200 and a P300 component, with the P200 component being larger for the AI condition in neurotypical volunteers but not in autistic individuals, who also showed a longer latency for this waveform. Group differences in amplitude of the ERP intention effect only became evident when we compared autistic participants to a subgroup of similarly performing neurotypical participants, suggesting that the atypical ERP waveform in ASD is an effect of group, rather than a marker of low-task performance. Together, these results suggest that the lower accuracy of the ASD group in the AI task may result from impaired early attentional processing and contextual integration of socially relevant cues. LAY SUMMARY: To understand why autistic people have difficulties in inferring others' intentions, we asked participants to judge the congruence of the endings of comic strips depicting either intentional actions (e.g., fetching a chair to reach for something) or situations solely following physical rules (e.g., an apple falling on someone's head), while their electrical brain activity was recorded. Autistic individuals had more difficulties in inferring intentions than neurotypical controls, which may reflect impaired attention and contextual integration of social cues. En ligne : http://dx.doi.org/10.1002/aur.2702 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=473 [article] Attribution of intentions in autism spectrum disorder: A study of event-related potentials [Texte imprimé et/ou numérique] / João Miguel FERNANDES, Auteur ; Sara SOARES, Auteur ; Ricardo LOPES, Auteur ; Rita JERÓNIMO, Auteur ; J. Bernardo BARAHONA-CORREA, Auteur . - p.847-860. Langues : Anglais (eng) in Autism Research > 15-5 (May 2022) . - p.847-860 Mots-clés : Adult  Autism Spectrum Disorder  Autistic Disorder  Evoked Potentials/physiology  Female  Humans  Intention  Male  Social Perception  attribution of intentions  autism spectrum disorders  event related potentials  social cognition & theory of mind Index. décimale : PER Périodiques Résumé : Autism spectrum disorder (ASD) is characterized by social cognition deficits, including difficulties inferring the intentions of others. Although deficits in attribution of intentions (AI) have been consistently replicated in ASD, their exact nature remains unexplored. Here we registered the electrophysiological correlates of a nonverbal social cognition task to investigate AI in autistic adults. Twenty-one male autistic adults and 30 male neurotypical volunteers performed a comic strips task depicting either intentional action (AI) or physical causality with or without human characters, while their electroencephalographic signal was recorded. Compared to neurotypical volunteers, autistic participants were significantly less accurate in correctly identifying congruence in the AI condition, but not in the physical causality conditions. In the AI condition a bilateral posterior positive event-related potential (ERP) occurred 200-400?ms post-stimulus (the ERP intention effect) in both groups. This waveform comprised a P200 and a P300 component, with the P200 component being larger for the AI condition in neurotypical volunteers but not in autistic individuals, who also showed a longer latency for this waveform. Group differences in amplitude of the ERP intention effect only became evident when we compared autistic participants to a subgroup of similarly performing neurotypical participants, suggesting that the atypical ERP waveform in ASD is an effect of group, rather than a marker of low-task performance. Together, these results suggest that the lower accuracy of the ASD group in the AI task may result from impaired early attentional processing and contextual integration of socially relevant cues. LAY SUMMARY: To understand why autistic people have difficulties in inferring others' intentions, we asked participants to judge the congruence of the endings of comic strips depicting either intentional actions (e.g., fetching a chair to reach for something) or situations solely following physical rules (e.g., an apple falling on someone's head), while their electrical brain activity was recorded. Autistic individuals had more difficulties in inferring intentions than neurotypical controls, which may reflect impaired attention and contextual integration of social cues. En ligne : http://dx.doi.org/10.1002/aur.2702 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=473

Primary healthcare use of the modified checklist for autism in toddlers revised with follow-up in Portugal / Inês GENÉSIO in Research in Autism Spectrum Disorders, 107 (September 2023)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 107 (September 2023) . - p.102219 Titre : Primary healthcare use of the modified checklist for autism in toddlers revised with follow-up in Portugal Type de document : Texte imprimé et/ou numérique Auteurs : Inês GENÉSIO, Auteur ; João Esteves SALGADO, Auteur ; Pedro Martinho GOUVEIA, Auteur ; Inês Vaz MATOS, Auteur ; Diana GONZAGA, Auteur ; Leonilde MACHADO, Auteur ; Catarina PRIOR, Auteur ; Sara SOARES, Auteur Article en page(s) : p.102219 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder  Primary healthcare  Neurodevelopmental disorder  Modified checklist for autism in toddlers  Screening Index. décimale : PER Périodiques Résumé : Background The Portuguese National Programme for Child and Adolescent Health recommends systematic screening for autism spectrum disorder (ASD) using the Modified Checklist for Autism in Toddlers, Revised (M-CHAT-R). If moderate risk is identified, the Modified Checklist for Autism in Toddlers, Revised with Follow-up (M-CHAT-R/F) should be used. We evaluated the knowledge and use of the M-CHAT-R and M-CHAT-R/F in primary healthcare settings to reinforce the importance of these scales. Method In this descriptive cross-sectional study, primary care physicians were surveyed about their knowledge of both the M-CHAT-R and M-CHAT-R/F and how often they used them. The survey also included items about the necessity of training in the utilization of these scales and their integration into digital work platforms. Data were analyzed using Statistical Package for the Social Sciences software. Results Of 250 participants, 76% (N = 190) were acquainted with the M-CHAT-R; however, only 21% (N = 52) applied it consistently. Additionally, 39% (N = 98) of the participants used it when they suspected ASD. The main reasons for not applying the scale were limited time, lack of experience with the M-CHAT-R, and forgetfulness. Regarding the M-CHAT-R/F, only 31% (N = 77) knew the scale, which was the main reason for not using it, and 45% (N = 113) reported that they referred to a neurodevelopmental pediatrician when ASD was suspected, even if the M-CHAT-R/F had not been applied. Conclusions Despite the recommendations, the M-CHAT-R/F is not routinely used in primary care. Professionals should reinforce their training for the correct and systematic application of this screening scale. En ligne : https://doi.org/10.1016/j.rasd.2023.102219 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=512 [article] Primary healthcare use of the modified checklist for autism in toddlers revised with follow-up in Portugal [Texte imprimé et/ou numérique] / Inês GENÉSIO, Auteur ; João Esteves SALGADO, Auteur ; Pedro Martinho GOUVEIA, Auteur ; Inês Vaz MATOS, Auteur ; Diana GONZAGA, Auteur ; Leonilde MACHADO, Auteur ; Catarina PRIOR, Auteur ; Sara SOARES, Auteur . - p.102219. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 107 (September 2023) . - p.102219 Mots-clés : Autism spectrum disorder  Primary healthcare  Neurodevelopmental disorder  Modified checklist for autism in toddlers  Screening Index. décimale : PER Périodiques Résumé : Background The Portuguese National Programme for Child and Adolescent Health recommends systematic screening for autism spectrum disorder (ASD) using the Modified Checklist for Autism in Toddlers, Revised (M-CHAT-R). If moderate risk is identified, the Modified Checklist for Autism in Toddlers, Revised with Follow-up (M-CHAT-R/F) should be used. We evaluated the knowledge and use of the M-CHAT-R and M-CHAT-R/F in primary healthcare settings to reinforce the importance of these scales. Method In this descriptive cross-sectional study, primary care physicians were surveyed about their knowledge of both the M-CHAT-R and M-CHAT-R/F and how often they used them. The survey also included items about the necessity of training in the utilization of these scales and their integration into digital work platforms. Data were analyzed using Statistical Package for the Social Sciences software. Results Of 250 participants, 76% (N = 190) were acquainted with the M-CHAT-R; however, only 21% (N = 52) applied it consistently. Additionally, 39% (N = 98) of the participants used it when they suspected ASD. The main reasons for not applying the scale were limited time, lack of experience with the M-CHAT-R, and forgetfulness. Regarding the M-CHAT-R/F, only 31% (N = 77) knew the scale, which was the main reason for not using it, and 45% (N = 113) reported that they referred to a neurodevelopmental pediatrician when ASD was suspected, even if the M-CHAT-R/F had not been applied. Conclusions Despite the recommendations, the M-CHAT-R/F is not routinely used in primary care. Professionals should reinforce their training for the correct and systematic application of this screening scale. En ligne : https://doi.org/10.1016/j.rasd.2023.102219 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=512

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