Contrasting the Effects of Task Difficulty and Perceptual Load on Auditory Detection Sensitivity in Individuals with Autism / J. TILLMANN in Journal of Autism and Developmental Disorders, 49-2 (February 2019)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 49-2 (February 2019) . - p.762-772 Titre : Contrasting the Effects of Task Difficulty and Perceptual Load on Auditory Detection Sensitivity in Individuals with Autism Type de document : Texte imprimé et/ou numérique Auteurs : J. TILLMANN, Auteur ; J. SWETTENHAM, Auteur Article en page(s) : p.762-772 Langues : Anglais (eng) Mots-clés : Auditory detection sensitivity  Autism spectrum disorder  Perceptual load  Selective attention  Task difficulty Index. décimale : PER Périodiques Résumé : To test a central assumption of the increased perceptual capacity account in individuals with Autism Spectrum Disorder (ASD), the effects of perceptual load and target-stimulus degradation on auditory detection sensitivity were contrasted. Fourteen adolescents with ASD and 16 neurotypical controls performed a visual letter search task under three conditions: low perceptual load, high perceptual load and low perceptual load with a degraded target while simultaneously detecting an auditory tone in noise. For both participants with ASD and neurotypical controls, increasing perceptual load and target degradation increased task difficulty as indexed by reaction times and accuracy. However, only increasing perceptual load reduced subsequent auditory detection sensitivity. The study confirms that perceptual load, and not task difficulty, modulates selective attention in ASD. En ligne : http://dx.doi.org/10.1007/s10803-018-3766-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=382 [article] Contrasting the Effects of Task Difficulty and Perceptual Load on Auditory Detection Sensitivity in Individuals with Autism [Texte imprimé et/ou numérique] / J. TILLMANN, Auteur ; J. SWETTENHAM, Auteur . - p.762-772. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 49-2 (February 2019) . - p.762-772 Mots-clés : Auditory detection sensitivity  Autism spectrum disorder  Perceptual load  Selective attention  Task difficulty Index. décimale : PER Périodiques Résumé : To test a central assumption of the increased perceptual capacity account in individuals with Autism Spectrum Disorder (ASD), the effects of perceptual load and target-stimulus degradation on auditory detection sensitivity were contrasted. Fourteen adolescents with ASD and 16 neurotypical controls performed a visual letter search task under three conditions: low perceptual load, high perceptual load and low perceptual load with a degraded target while simultaneously detecting an auditory tone in noise. For both participants with ASD and neurotypical controls, increasing perceptual load and target degradation increased task difficulty as indexed by reaction times and accuracy. However, only increasing perceptual load reduced subsequent auditory detection sensitivity. The study confirms that perceptual load, and not task difficulty, modulates selective attention in ASD. En ligne : http://dx.doi.org/10.1007/s10803-018-3766-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=382

Signing with the Face: Emotional Expression in Narrative Production in Deaf Children with Autism Spectrum Disorder / T. DENMARK in Journal of Autism and Developmental Disorders, 49-1 (January 2019)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 49-1 (January 2019) . - p.294-306 Titre : Signing with the Face: Emotional Expression in Narrative Production in Deaf Children with Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : T. DENMARK, Auteur ; Joanna ATKINSON, Auteur ; R. CAMPBELL, Auteur ; J. SWETTENHAM, Auteur Article en page(s) : p.294-306 Langues : Anglais (eng) Mots-clés : Autism  British Sign Language  Deaf  Emotion  Narrative Index. décimale : PER Périodiques Résumé : This study examined facial expressions produced during a British Sign Language (BSL) narrative task (Herman et al., International Journal of Language and Communication Disorders 49(3):343-353, 2014) by typically developing deaf children and deaf children with autism spectrum disorder. The children produced BSL versions of a video story in which two children are seen to enact a language-free scenario where one tricks the other. This task encourages elicitation of facial acts signalling intention and emotion, since the protagonists showed a range of such expressions during the events portrayed. Results showed that typically developing deaf children produced facial expressions which closely aligned with native adult signers' BSL narrative versions of the task. Children with ASD produced fewer targeted expressions and showed qualitative differences in the facial actions that they produced. En ligne : http://dx.doi.org/10.1007/s10803-018-3756-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=377 [article] Signing with the Face: Emotional Expression in Narrative Production in Deaf Children with Autism Spectrum Disorder [Texte imprimé et/ou numérique] / T. DENMARK, Auteur ; Joanna ATKINSON, Auteur ; R. CAMPBELL, Auteur ; J. SWETTENHAM, Auteur . - p.294-306. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 49-1 (January 2019) . - p.294-306 Mots-clés : Autism  British Sign Language  Deaf  Emotion  Narrative Index. décimale : PER Périodiques Résumé : This study examined facial expressions produced during a British Sign Language (BSL) narrative task (Herman et al., International Journal of Language and Communication Disorders 49(3):343-353, 2014) by typically developing deaf children and deaf children with autism spectrum disorder. The children produced BSL versions of a video story in which two children are seen to enact a language-free scenario where one tricks the other. This task encourages elicitation of facial acts signalling intention and emotion, since the protagonists showed a range of such expressions during the events portrayed. Results showed that typically developing deaf children produced facial expressions which closely aligned with native adult signers' BSL narrative versions of the task. Children with ASD produced fewer targeted expressions and showed qualitative differences in the facial actions that they produced. En ligne : http://dx.doi.org/10.1007/s10803-018-3756-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=377

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