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Neutral versus emotional human stimuli processing in children with pervasive developmental disorders not otherwise specified / Léonard VANNETZEL in Research in Autism Spectrum Disorders, 5-2 (April-June 2011)
[article]
Titre : Neutral versus emotional human stimuli processing in children with pervasive developmental disorders not otherwise specified Type de document : Texte imprimé et/ou numérique Auteurs : Léonard VANNETZEL, Auteur ; Laurence CHABY, Auteur ; Fabienne CAUTRU, Auteur ; David COHEN, Auteur ; Monique PLAZA, Auteur Année de publication : 2011 Article en page(s) : p.775-783 Langues : Anglais (eng) Mots-clés : PDD-NOS Autism Children Human stimuli Neutral Emotional Visual Auditory Multimodal processing Index. décimale : PER Périodiques Résumé : Pervasive developmental disorder not otherwise specified (PDD-NOS) represents up to two-thirds of autism spectrum disorders; however, it is usually described in terms of the symptoms not shared by autism. The study explores processing of neutral and emotional human stimuli (by auditory, visual and multimodal channels) in children with PDD-NOS (n = 10) compared to typically developing children (n = 35). The neutral human stimuli consisted of faces and common first names. The emotional human stimuli consisted of happy, sad, angry, and neutral faces and vocalizations. The results confirmed previous findings and led to others. The PDD-NOS group (a) accurately processed neutral human stimuli; (b) had difficulty processing emotional stimuli in general and more easily identified happy compared to angry or neutral faces and vocalizations; (c) had a strong discrepancy between emotional and neutral human stimuli processing; (d) used the multimodal channel to compensate for unimodal deficits, especially for angry faces; and (e) was strongly heterogeneous. En ligne : http://dx.doi.org/10.1016/j.rasd.2010.09.005 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=114
in Research in Autism Spectrum Disorders > 5-2 (April-June 2011) . - p.775-783[article] Neutral versus emotional human stimuli processing in children with pervasive developmental disorders not otherwise specified [Texte imprimé et/ou numérique] / Léonard VANNETZEL, Auteur ; Laurence CHABY, Auteur ; Fabienne CAUTRU, Auteur ; David COHEN, Auteur ; Monique PLAZA, Auteur . - 2011 . - p.775-783.
Langues : Anglais (eng)
in Research in Autism Spectrum Disorders > 5-2 (April-June 2011) . - p.775-783
Mots-clés : PDD-NOS Autism Children Human stimuli Neutral Emotional Visual Auditory Multimodal processing Index. décimale : PER Périodiques Résumé : Pervasive developmental disorder not otherwise specified (PDD-NOS) represents up to two-thirds of autism spectrum disorders; however, it is usually described in terms of the symptoms not shared by autism. The study explores processing of neutral and emotional human stimuli (by auditory, visual and multimodal channels) in children with PDD-NOS (n = 10) compared to typically developing children (n = 35). The neutral human stimuli consisted of faces and common first names. The emotional human stimuli consisted of happy, sad, angry, and neutral faces and vocalizations. The results confirmed previous findings and led to others. The PDD-NOS group (a) accurately processed neutral human stimuli; (b) had difficulty processing emotional stimuli in general and more easily identified happy compared to angry or neutral faces and vocalizations; (c) had a strong discrepancy between emotional and neutral human stimuli processing; (d) used the multimodal channel to compensate for unimodal deficits, especially for angry faces; and (e) was strongly heterogeneous. En ligne : http://dx.doi.org/10.1016/j.rasd.2010.09.005 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=114 The pupil: a window on social automatic processing in autism spectrum disorder children / Nadia AGUILLON-HERNANDEZ in Journal of Child Psychology and Psychiatry, 61-7 (July 2020)
[article]
Titre : The pupil: a window on social automatic processing in autism spectrum disorder children Type de document : Texte imprimé et/ou numérique Auteurs : Nadia AGUILLON-HERNANDEZ, Auteur ; Yassine MOFID, Auteur ; Marianne LATINUS, Auteur ; Laetitia ROCHE, Auteur ; Maria Rosa BUFO, Auteur ; Mathieu LEMAIRE, Auteur ; Joëlle MALVY, Auteur ; Joëlle MARTINEAU, Auteur ; Claire WARDAK, Auteur ; Frédérique BONNET-BRILHAULT, Auteur Article en page(s) : p.768-778 Langues : Anglais (eng) Mots-clés : Pupil autism spectrum disorder development dynamism emotion faces neutral Index. décimale : PER Périodiques Résumé : BACKGROUND: Faces are crucial social stimuli, eliciting automatic processing associated with increased physiological arousal in observers. The level of arousal can be indexed by pupil diameter (the 'Event-Related Pupil Dilation', ERPD). However, many parameters could influence the arousal evoked by a face and its social saliency (e.g. virtual vs. real, neutral vs. emotional, static vs. dynamic). A few studies have shown an atypical ERPD in autism spectrum disorder (ASD) patients using several kinds of faces but no study has focused on identifying which parameter of the stimulus is the most interfering with face processing in ASD. METHODS: In order to disentangle the influence of these parameters, we propose an original paradigm including stimuli along an ecological social saliency gradient: from static objects to virtual faces to dynamic emotional faces. This strategy was applied to 186 children (78 ASD and 108 typically developing (TD) children) in two pupillometric studies (22 ASD and 47 TD children in the study 1 and 56 ASD and 61 TD children in the study 2). RESULTS: Strikingly, the ERPD in ASD children is insensitive to any of the parameters tested: the ERPD was similar for objects, static faces or dynamic faces. On the opposite, the ERPD in TD children is sensitive to all the parameters tested: the humanoid, biological, dynamic and emotional quality of the stimuli. Moreover, ERPD had a good discriminative power between ASD and TD children: ASD had a larger ERPD than TD in response to virtual faces, while TD had a larger ERPD than ASD for dynamic faces. CONCLUSIONS: This novel approach evidences an abnormal physiological adjustment to socially relevant stimuli in ASD. En ligne : http://dx.doi.org/10.1111/jcpp.13170 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=429
in Journal of Child Psychology and Psychiatry > 61-7 (July 2020) . - p.768-778[article] The pupil: a window on social automatic processing in autism spectrum disorder children [Texte imprimé et/ou numérique] / Nadia AGUILLON-HERNANDEZ, Auteur ; Yassine MOFID, Auteur ; Marianne LATINUS, Auteur ; Laetitia ROCHE, Auteur ; Maria Rosa BUFO, Auteur ; Mathieu LEMAIRE, Auteur ; Joëlle MALVY, Auteur ; Joëlle MARTINEAU, Auteur ; Claire WARDAK, Auteur ; Frédérique BONNET-BRILHAULT, Auteur . - p.768-778.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 61-7 (July 2020) . - p.768-778
Mots-clés : Pupil autism spectrum disorder development dynamism emotion faces neutral Index. décimale : PER Périodiques Résumé : BACKGROUND: Faces are crucial social stimuli, eliciting automatic processing associated with increased physiological arousal in observers. The level of arousal can be indexed by pupil diameter (the 'Event-Related Pupil Dilation', ERPD). However, many parameters could influence the arousal evoked by a face and its social saliency (e.g. virtual vs. real, neutral vs. emotional, static vs. dynamic). A few studies have shown an atypical ERPD in autism spectrum disorder (ASD) patients using several kinds of faces but no study has focused on identifying which parameter of the stimulus is the most interfering with face processing in ASD. METHODS: In order to disentangle the influence of these parameters, we propose an original paradigm including stimuli along an ecological social saliency gradient: from static objects to virtual faces to dynamic emotional faces. This strategy was applied to 186 children (78 ASD and 108 typically developing (TD) children) in two pupillometric studies (22 ASD and 47 TD children in the study 1 and 56 ASD and 61 TD children in the study 2). RESULTS: Strikingly, the ERPD in ASD children is insensitive to any of the parameters tested: the ERPD was similar for objects, static faces or dynamic faces. On the opposite, the ERPD in TD children is sensitive to all the parameters tested: the humanoid, biological, dynamic and emotional quality of the stimuli. Moreover, ERPD had a good discriminative power between ASD and TD children: ASD had a larger ERPD than TD in response to virtual faces, while TD had a larger ERPD than ASD for dynamic faces. CONCLUSIONS: This novel approach evidences an abnormal physiological adjustment to socially relevant stimuli in ASD. En ligne : http://dx.doi.org/10.1111/jcpp.13170 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=429