Acoustic Exaggeration Enhances Speech Discrimination in Young Autistic Children / Luodi YU ; Lizhi BAN ; Aiwen Yi ; Jing Xin ; Suping Li ; Suiping WANG ; Laurent MOTTRON in Autism Research, 18-2 (February 2025)  

Public ISBD [article]  inAutism Research > 18-2 (February 2025) . - p.402-414 Titre : Acoustic Exaggeration Enhances Speech Discrimination in Young Autistic Children : Autism Research Type de document : Texte imprimé et/ou numérique Auteurs : Luodi YU, Auteur ; Lizhi BAN, Auteur ; Aiwen Yi, Auteur ; Jing Xin, Auteur ; Suping Li, Auteur ; Suiping WANG, Auteur ; Laurent MOTTRON, Auteur Article en page(s) : p.402-414 Langues : Anglais (eng) Mots-clés : auditory processing autism spectrum disorders EEG multivariate pattern analysis speech processing Index. décimale : PER Périodiques Résumé : ABSTRACT Child-directed speech (CDS), which amplifies acoustic and social features of speech during interactions with young children, promotes typical phonetic and language development. In autism, both behavioral and brain data indicate reduced sensitivity to human speech, which predicts absent, decreased, or atypical benefits of exaggerated speech signals such as CDS. This study investigates the impact of exaggerated fundamental frequency (F0) and voice-onset time on the neural processing of speech sounds in 22 Chinese-speaking autistic children aged 2?7?years old with a history of speech delays, compared with 25 typically developing (TD) peers. Electroencephalography (EEG) data were collected during passive listening to exaggerated and non-exaggerated syllables. A time-resolved multivariate pattern analysis (MVPA) was used to evaluate the potential effects of acoustic exaggeration on syllable discrimination in terms of neural decoding accuracy. For non-exaggerated syllables, neither the autism nor the TD group achieved above-chance decoding accuracy. In contrast, for exaggerated syllables, both groups achieved above-chance decoding, indicating significant syllable discrimination, with no difference in accuracy between the autism and TD groups. However, the temporal generalization patterns in the MVPA results revealed distinct neural mechanisms supporting syllable discrimination between the groups. Although the TD group demonstrated a left-hemisphere advantage for decoding and generalization, the autism group displayed similar decoding patterns between hemispheres. These findings highlight the potential of selective acoustic exaggeration to support speech learning in autistic children, underscoring the importance of tailored, sensory-based interventions. En ligne : https://doi.org/10.1002/aur.3301 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=547 [article] Acoustic Exaggeration Enhances Speech Discrimination in Young Autistic Children : Autism Research [Texte imprimé et/ou numérique] / Luodi YU, Auteur ; Lizhi BAN, Auteur ; Aiwen Yi, Auteur ; Jing Xin, Auteur ; Suping Li, Auteur ; Suiping WANG, Auteur ; Laurent MOTTRON, Auteur . - p.402-414. Langues : Anglais (eng) in Autism Research > 18-2 (February 2025) . - p.402-414 Mots-clés : auditory processing autism spectrum disorders EEG multivariate pattern analysis speech processing Index. décimale : PER Périodiques Résumé : ABSTRACT Child-directed speech (CDS), which amplifies acoustic and social features of speech during interactions with young children, promotes typical phonetic and language development. In autism, both behavioral and brain data indicate reduced sensitivity to human speech, which predicts absent, decreased, or atypical benefits of exaggerated speech signals such as CDS. This study investigates the impact of exaggerated fundamental frequency (F0) and voice-onset time on the neural processing of speech sounds in 22 Chinese-speaking autistic children aged 2?7?years old with a history of speech delays, compared with 25 typically developing (TD) peers. Electroencephalography (EEG) data were collected during passive listening to exaggerated and non-exaggerated syllables. A time-resolved multivariate pattern analysis (MVPA) was used to evaluate the potential effects of acoustic exaggeration on syllable discrimination in terms of neural decoding accuracy. For non-exaggerated syllables, neither the autism nor the TD group achieved above-chance decoding accuracy. In contrast, for exaggerated syllables, both groups achieved above-chance decoding, indicating significant syllable discrimination, with no difference in accuracy between the autism and TD groups. However, the temporal generalization patterns in the MVPA results revealed distinct neural mechanisms supporting syllable discrimination between the groups. Although the TD group demonstrated a left-hemisphere advantage for decoding and generalization, the autism group displayed similar decoding patterns between hemispheres. These findings highlight the potential of selective acoustic exaggeration to support speech learning in autistic children, underscoring the importance of tailored, sensory-based interventions. En ligne : https://doi.org/10.1002/aur.3301 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=547

Pitch Processing in Tonal-Language-Speaking Children with Autism: An Event-Related Potential Study / Luodi YU in Journal of Autism and Developmental Disorders, 45-11 (November 2015)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 45-11 (November 2015) . - p.3656-3667 Titre : Pitch Processing in Tonal-Language-Speaking Children with Autism: An Event-Related Potential Study Type de document : Texte imprimé et/ou numérique Auteurs : Luodi YU, Auteur ; Yuebo FAN, Auteur ; Zhizhou DENG, Auteur ; Dan HUANG, Auteur ; Suiping WANG, Auteur ; Yang ZHANG, Auteur Article en page(s) : p.3656-3667 Langues : Anglais (eng) Mots-clés : Autism  Pitch processing  Speech perception  Language development  Event-related potentials (ERPs)  Mismatch negativity (MMN) Index. décimale : PER Périodiques Résumé : The present study investigated pitch processing in Mandarin-speaking children with autism using event-related potential measures. Two experiments were designed to test how acoustic, phonetic and semantic properties of the stimuli contributed to the neural responses for pitch change detection and involuntary attentional orienting. In comparison with age-matched (6–12 years) typically developing controls (16 participants in Experiment 1, 18 in Experiment 2), children with autism (18 participants in Experiment 1, 16 in Experiment 2) showed enhanced neural discriminatory sensitivity in the nonspeech conditions but not for speech stimuli. The results indicate domain specificity of enhanced pitch processing in autism, which may interfere with lexical tone acquisition and language development for children who speak a tonal language. En ligne : http://dx.doi.org/10.1007/s10803-015-2510-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=270 [article] Pitch Processing in Tonal-Language-Speaking Children with Autism: An Event-Related Potential Study [Texte imprimé et/ou numérique] / Luodi YU, Auteur ; Yuebo FAN, Auteur ; Zhizhou DENG, Auteur ; Dan HUANG, Auteur ; Suiping WANG, Auteur ; Yang ZHANG, Auteur . - p.3656-3667. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 45-11 (November 2015) . - p.3656-3667 Mots-clés : Autism  Pitch processing  Speech perception  Language development  Event-related potentials (ERPs)  Mismatch negativity (MMN) Index. décimale : PER Périodiques Résumé : The present study investigated pitch processing in Mandarin-speaking children with autism using event-related potential measures. Two experiments were designed to test how acoustic, phonetic and semantic properties of the stimuli contributed to the neural responses for pitch change detection and involuntary attentional orienting. In comparison with age-matched (6–12 years) typically developing controls (16 participants in Experiment 1, 18 in Experiment 2), children with autism (18 participants in Experiment 1, 16 in Experiment 2) showed enhanced neural discriminatory sensitivity in the nonspeech conditions but not for speech stimuli. The results indicate domain specificity of enhanced pitch processing in autism, which may interfere with lexical tone acquisition and language development for children who speak a tonal language. En ligne : http://dx.doi.org/10.1007/s10803-015-2510-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=270

Reduced Neural Specialization for Word-level Linguistic Prosody in Children with Autism / Luodi YU in Journal of Autism and Developmental Disorders, 53-11 (November 2023)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 53-11 (November 2023) . - p.4351-4367 Titre : Reduced Neural Specialization for Word-level Linguistic Prosody in Children with Autism Type de document : Texte imprimé et/ou numérique Auteurs : Luodi YU, Auteur ; Dan HUANG, Auteur ; Suiping WANG, Auteur ; Yang ZHANG, Auteur Article en page(s) : p.4351-4367 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Children with autism often show atypical brain lateralization for speech and language processing, however, it is unclear what linguistic component contributes to this phenomenon. Here we measured event-related potential (ERP) responses in 21 school-age autistic children and 25 age-matched neurotypical (NT) peers during listening to word-level prosodic stimuli. We found that both groups displayed larger late negative response (LNR) amplitude to native prosody than to nonnative prosody; however, unlike the NT group exhibiting left-lateralized LNR distinction of prosodic phonology, the autism group showed no evidence of LNR lateralization. Moreover, in both groups, the LNR effects were only present for prosodic phonology but not for phoneme-free prosodic acoustics. These results extended the findings of inadequate neural specialization for language in autism to sub-lexical prosodic structures. En ligne : https://doi.org/10.1007/s10803-022-05720-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=512 [article] Reduced Neural Specialization for Word-level Linguistic Prosody in Children with Autism [Texte imprimé et/ou numérique] / Luodi YU, Auteur ; Dan HUANG, Auteur ; Suiping WANG, Auteur ; Yang ZHANG, Auteur . - p.4351-4367. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 53-11 (November 2023) . - p.4351-4367 Index. décimale : PER Périodiques Résumé : Children with autism often show atypical brain lateralization for speech and language processing, however, it is unclear what linguistic component contributes to this phenomenon. Here we measured event-related potential (ERP) responses in 21 school-age autistic children and 25 age-matched neurotypical (NT) peers during listening to word-level prosodic stimuli. We found that both groups displayed larger late negative response (LNR) amplitude to native prosody than to nonnative prosody; however, unlike the NT group exhibiting left-lateralized LNR distinction of prosodic phonology, the autism group showed no evidence of LNR lateralization. Moreover, in both groups, the LNR effects were only present for prosodic phonology but not for phoneme-free prosodic acoustics. These results extended the findings of inadequate neural specialization for language in autism to sub-lexical prosodic structures. En ligne : https://doi.org/10.1007/s10803-022-05720-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=512

---

1 (1 - 3 / 3)