Audiovisual Speech Perception in Children with Autism Spectrum Disorders: Evidence from Visual Phonemic Restoration / Julia R. IRWIN in Journal of Autism and Developmental Disorders, 52-1 (January 2022)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 52-1 (January 2022) . - p.28-37 Titre : Audiovisual Speech Perception in Children with Autism Spectrum Disorders: Evidence from Visual Phonemic Restoration Type de document : texte imprimé Auteurs : Julia R. IRWIN, Auteur ; Trey AVERY, Auteur ; Daniel KLEINMAN, Auteur ; Nicole LANDI, Auteur Article en page(s) : p.28-37 Langues : Anglais (eng) Mots-clés : Auditory Perception  Autism Spectrum Disorder  Child  Cues  Evoked Potentials  Humans  Speech  Speech Perception  Visual Perception  Audiovisual  Autism  Phonemic restoration Index. décimale : PER Périodiques Résumé : Children with autism spectrum disorders have been reported to be less influenced by a speaker's face during speech perception than those with typically development. To more closely examine these reported differences, a novel visual phonemic restoration paradigm was used to assess neural signatures (event-related potentials [ERPs]) of audiovisual processing in typically developing children and in children with autism spectrum disorder. Video of a speaker saying the syllable /ba/ was paired with (1) a synthesized /ba/ or (2) a synthesized syllable derived from /ba/ in which auditory cues for the consonant were substantially weakened, thereby sounding more like /a/. The auditory stimuli are easily discriminable; however, in the context of a visual /ba/, the auditory /a/ is typically perceived as /ba/, producing a visual phonemic restoration. Only children with ASD showed a large /ba/-/a/ discrimination response in the presence of a speaker producing /ba/, suggesting reduced influence of visual speech. En ligne : http://dx.doi.org/10.1007/s10803-021-04916-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=454 [article] Audiovisual Speech Perception in Children with Autism Spectrum Disorders: Evidence from Visual Phonemic Restoration [texte imprimé] / Julia R. IRWIN, Auteur ; Trey AVERY, Auteur ; Daniel KLEINMAN, Auteur ; Nicole LANDI, Auteur . - p.28-37. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 52-1 (January 2022) . - p.28-37 Mots-clés : Auditory Perception  Autism Spectrum Disorder  Child  Cues  Evoked Potentials  Humans  Speech  Speech Perception  Visual Perception  Audiovisual  Autism  Phonemic restoration Index. décimale : PER Périodiques Résumé : Children with autism spectrum disorders have been reported to be less influenced by a speaker's face during speech perception than those with typically development. To more closely examine these reported differences, a novel visual phonemic restoration paradigm was used to assess neural signatures (event-related potentials [ERPs]) of audiovisual processing in typically developing children and in children with autism spectrum disorder. Video of a speaker saying the syllable /ba/ was paired with (1) a synthesized /ba/ or (2) a synthesized syllable derived from /ba/ in which auditory cues for the consonant were substantially weakened, thereby sounding more like /a/. The auditory stimuli are easily discriminable; however, in the context of a visual /ba/, the auditory /a/ is typically perceived as /ba/, producing a visual phonemic restoration. Only children with ASD showed a large /ba/-/a/ discrimination response in the presence of a speaker producing /ba/, suggesting reduced influence of visual speech. En ligne : http://dx.doi.org/10.1007/s10803-021-04916-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=454

Lexical processing deficits in children with developmental language disorder: An event-related potentials study / Sergey A. KORNILOV in Development and Psychopathology, 27-2 (May 2015)  

Public ISBD [article]  inDevelopment and Psychopathology > 27-2 (May 2015) . - p.459-476 Titre : Lexical processing deficits in children with developmental language disorder: An event-related potentials study Type de document : texte imprimé Auteurs : Sergey A. KORNILOV, Auteur ; James S. MAGNUSON, Auteur ; Natalia RAKHLIN, Auteur ; Nicole LANDI, Auteur ; Elena L. GRIGORENKO, Auteur Article en page(s) : p.459-476 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Lexical processing deficits in children with developmental language disorder (DLD) have been postulated to arise as sequelae of their grammatical deficits (either directly or via compensatory mechanisms) and vice versa. We examined event-related potential indices of lexical processing in children with DLD (n = 23) and their typically developing peers (n = 16) using a picture–word matching paradigm. We found that children with DLD showed markedly reduced N400 amplitudes in response both to auditorily presented words that had initial phonological overlap with the name of the pictured object and to words that were not semantically or phonologically related to the pictured object. Moreover, this reduction was related to behavioral indices of phonological and lexical but not grammatical development. We also found that children with DLD showed a depressed phonological mapping negativity component in the early time window, suggesting deficits in phonological processing or early lexical access. The results are partially consistent with the overactivation account of lexical processing deficits in DLD and point to the relative functional independence of lexical/phonological and grammatical deficits in DLD, supporting a multidimensional view of the disorder. The results also, although indirectly, support the neuroplasticity account of DLD, according to which language impairment affects brain development and shapes the specific patterns of brain responses to language stimuli. En ligne : http://dx.doi.org/10.1017/S0954579415000097 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=257 [article] Lexical processing deficits in children with developmental language disorder: An event-related potentials study [texte imprimé] / Sergey A. KORNILOV, Auteur ; James S. MAGNUSON, Auteur ; Natalia RAKHLIN, Auteur ; Nicole LANDI, Auteur ; Elena L. GRIGORENKO, Auteur . - p.459-476. Langues : Anglais (eng) in Development and Psychopathology > 27-2 (May 2015) . - p.459-476 Index. décimale : PER Périodiques Résumé : Lexical processing deficits in children with developmental language disorder (DLD) have been postulated to arise as sequelae of their grammatical deficits (either directly or via compensatory mechanisms) and vice versa. We examined event-related potential indices of lexical processing in children with DLD (n = 23) and their typically developing peers (n = 16) using a picture–word matching paradigm. We found that children with DLD showed markedly reduced N400 amplitudes in response both to auditorily presented words that had initial phonological overlap with the name of the pictured object and to words that were not semantically or phonologically related to the pictured object. Moreover, this reduction was related to behavioral indices of phonological and lexical but not grammatical development. We also found that children with DLD showed a depressed phonological mapping negativity component in the early time window, suggesting deficits in phonological processing or early lexical access. The results are partially consistent with the overactivation account of lexical processing deficits in DLD and point to the relative functional independence of lexical/phonological and grammatical deficits in DLD, supporting a multidimensional view of the disorder. The results also, although indirectly, support the neuroplasticity account of DLD, according to which language impairment affects brain development and shapes the specific patterns of brain responses to language stimuli. En ligne : http://dx.doi.org/10.1017/S0954579415000097 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=257

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