Categorical perception of Mandarin lexical tones in language-delayed autistic children / Yicheng RONG in Autism, 27-5 (July 2023)  

Public ISBD [article]  inAutism > 27-5 (July 2023) . - p.1426-1437 Titre : Categorical perception of Mandarin lexical tones in language-delayed autistic children Type de document : texte imprimé Auteurs : Yicheng RONG, Auteur ; Yi WENG, Auteur ; Fei CHEN, Auteur ; Gang PENG, Auteur Article en page(s) : p.1426-1437 Langues : Anglais (eng) Mots-clés : autistic children;categorical perception;language ability;lexical tones;Mandarin;tone language Index. décimale : PER Périodiques Résumé : Enhanced pitch perception has been identified in autistic individuals, but it remains understudied whether such enhancement can be observed in the lexical tone perception of language-delayed autistic children. This study examined the categorical perception of Mandarin lexical tones in 23 language-delayed autistic children and two groups of non-autistic children, with one matched on chronological age (n 23) and the other on developmental age in language ability (n 23). The participants were required to identify and discriminate lexical tones. A wider identification boundary width and a lower between-category discrimination accuracy were found in autistic children than their chronological-age-matched non-autistic peers, but the autistic group exhibited seemingly comparable performance to the group of developmental-age-matched non-autistic children. While both non-autistic groups displayed a typical categorical perception pattern with enhanced sensitivity to between-category tone pairs relative to within-category ones, such a categorical perception pattern was not observed in the autistic group. These findings suggest among language-delayed autistic children with a developmental age around 4, categorical perception is still developing. Finally, we found categorical perception performance correlated with language ability, indicating autistic children s language disability might be predictive of their poor categorical perception of speech sounds. Lay abstract Some theories suggested that autistic people have better pitch perception skills than non-autistic people. However, in a context where pitch patterns are used to differentiate word meanings (i.e. lexical tones), autistic people may encounter difficulties, especially those with less language experience. We tested this by asking language-delayed autistic children to identify and discriminate two Mandarin lexical tones (/yi/ with Tone 1, meaning "clothes"; /yi/ with Tone 2, meaning "aunt"; /yi/: the standard romanization of Mandarin Chinese). On average, these autistic children were 7.35 years old, but their developmental age in language ability was 4.20, lagging behind 7-year-old non-autistic children in terms of language ability. Autistic children s performance in identifying and discriminating lexical tones was compared with two groups of non-autistic children: one group was matched with the autistic group on age, and the other was matched based on language ability. Autistic children performed differently from the non-autistic children matched on age, while autistic and non-autistic children matched on language ability exhibited seemingly similar performance. However, both the non-autistic groups have developed the perceptual ability to process lexical tones as different categories, but this ability was still developing in autistic children. Finally, we found autistic children who performed worse in identifying lexical tones had poorer language ability. The results suggest that language disability might have adverse influence on the development of skills of speech sound processing. En ligne : http://dx.doi.org/10.1177/13623613221138687 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=507 [article] Categorical perception of Mandarin lexical tones in language-delayed autistic children [texte imprimé] / Yicheng RONG, Auteur ; Yi WENG, Auteur ; Fei CHEN, Auteur ; Gang PENG, Auteur . - p.1426-1437. Langues : Anglais (eng) in Autism > 27-5 (July 2023) . - p.1426-1437 Mots-clés : autistic children;categorical perception;language ability;lexical tones;Mandarin;tone language Index. décimale : PER Périodiques Résumé : Enhanced pitch perception has been identified in autistic individuals, but it remains understudied whether such enhancement can be observed in the lexical tone perception of language-delayed autistic children. This study examined the categorical perception of Mandarin lexical tones in 23 language-delayed autistic children and two groups of non-autistic children, with one matched on chronological age (n 23) and the other on developmental age in language ability (n 23). The participants were required to identify and discriminate lexical tones. A wider identification boundary width and a lower between-category discrimination accuracy were found in autistic children than their chronological-age-matched non-autistic peers, but the autistic group exhibited seemingly comparable performance to the group of developmental-age-matched non-autistic children. While both non-autistic groups displayed a typical categorical perception pattern with enhanced sensitivity to between-category tone pairs relative to within-category ones, such a categorical perception pattern was not observed in the autistic group. These findings suggest among language-delayed autistic children with a developmental age around 4, categorical perception is still developing. Finally, we found categorical perception performance correlated with language ability, indicating autistic children s language disability might be predictive of their poor categorical perception of speech sounds. Lay abstract Some theories suggested that autistic people have better pitch perception skills than non-autistic people. However, in a context where pitch patterns are used to differentiate word meanings (i.e. lexical tones), autistic people may encounter difficulties, especially those with less language experience. We tested this by asking language-delayed autistic children to identify and discriminate two Mandarin lexical tones (/yi/ with Tone 1, meaning "clothes"; /yi/ with Tone 2, meaning "aunt"; /yi/: the standard romanization of Mandarin Chinese). On average, these autistic children were 7.35 years old, but their developmental age in language ability was 4.20, lagging behind 7-year-old non-autistic children in terms of language ability. Autistic children s performance in identifying and discriminating lexical tones was compared with two groups of non-autistic children: one group was matched with the autistic group on age, and the other was matched based on language ability. Autistic children performed differently from the non-autistic children matched on age, while autistic and non-autistic children matched on language ability exhibited seemingly similar performance. However, both the non-autistic groups have developed the perceptual ability to process lexical tones as different categories, but this ability was still developing in autistic children. Finally, we found autistic children who performed worse in identifying lexical tones had poorer language ability. The results suggest that language disability might have adverse influence on the development of skills of speech sound processing. En ligne : http://dx.doi.org/10.1177/13623613221138687 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=507

Habiletés préservées dans les épreuves des cubes et des figures intriquées chez les Enfants Autistes de Haut Niveau: quel lien avec le style cognitif ? / Fei CHEN in Bulletin Scientifique de l'arapi (Le), 21 (Printemps 2008)

Public ISBD [article]  inBulletin Scientifique de l'arapi (Le) > 21 (Printemps 2008) . - p.118-122 Titre : Habiletés préservées dans les épreuves des cubes et des figures intriquées chez les Enfants Autistes de Haut Niveau: quel lien avec le style cognitif ? Type de document : texte imprimé Auteurs : Fei CHEN, Auteur ; Alain LAZARTIGUES, Auteur ; Eric LEMONNIER, Auteur ; Pascale PLANCHE, Auteur Année de publication : 2008 Article en page(s) : p.118-122 Langues : Français (fre) Index. décimale : PER Périodiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=550 [article] Habiletés préservées dans les épreuves des cubes et des figures intriquées chez les Enfants Autistes de Haut Niveau: quel lien avec le style cognitif ? [texte imprimé] / Fei CHEN, Auteur ; Alain LAZARTIGUES, Auteur ; Eric LEMONNIER, Auteur ; Pascale PLANCHE, Auteur . - 2008 . - p.118-122. Langues : Français (fre) in Bulletin Scientifique de l'arapi (Le) > 21 (Printemps 2008) . - p.118-122 Index. décimale : PER Périodiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=550

Inverse correlation between the conceptual and perceptual processing in children with autism may be due to processing bias differences in information recall / Fei CHEN in Autism, 13-2 (March 2009)  

Public ISBD [article]  inAutism > 13-2 (March 2009) . - p.193-194 Titre : Inverse correlation between the conceptual and perceptual processing in children with autism may be due to processing bias differences in information recall Type de document : texte imprimé Auteurs : Fei CHEN, Auteur Année de publication : 2009 Article en page(s) : p.193-194 Langues : Anglais (eng) Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1177/1362361308100678 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=705 [article] Inverse correlation between the conceptual and perceptual processing in children with autism may be due to processing bias differences in information recall [texte imprimé] / Fei CHEN, Auteur . - 2009 . - p.193-194. Langues : Anglais (eng) in Autism > 13-2 (March 2009) . - p.193-194 Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1177/1362361308100678 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=705

Linguistic Tone and Non-Linguistic Pitch Imitation in Children with Autism Spectrum Disorders: A Cross-Linguistic Investigation / Fei CHEN in Journal of Autism and Developmental Disorders, 52-5 (May 2022)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 52-5 (May 2022) . - p.2325-2343 Titre : Linguistic Tone and Non-Linguistic Pitch Imitation in Children with Autism Spectrum Disorders: A Cross-Linguistic Investigation Type de document : texte imprimé Auteurs : Fei CHEN, Auteur ; Candice Chi-Hang CHEUNG, Auteur ; Gang PENG, Auteur Article en page(s) : p.2325-2343 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder  Child  Humans  Imitative Behavior  Linguistics  Pitch Perception  Speech Perception  Asd  Cantonese  Imitation  Lexical tone  Mandarin  Non-linguistic pitch Index. décimale : PER Périodiques Résumé : The conclusions on prosodic pitch features in autism spectrum disorders (ASD) have primarily been derived from studies in non-tonal language speakers. This cross-linguistic study evaluated the performance of imitating Cantonese lexical tones and their non-linguistic (nonspeech) counterparts by Cantonese- and Mandarin-speaking children with and without ASD. Acoustic analyses showed that, compared with typically developing peers, children with ASD exhibited increased pitch variations when imitating lexical tones, while performed similarly when imitating the nonspeech counterparts. Furthermore, Mandarin-speaking children with ASD failed to exploit the phonological knowledge of segments to improve the imitation accuracy of non-native lexical tones. These findings help clarify the speech-specific pitch processing atypicality and phonological processing deficit in tone-language-speaking children with ASD. En ligne : http://dx.doi.org/10.1007/s10803-021-05123-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=476 [article] Linguistic Tone and Non-Linguistic Pitch Imitation in Children with Autism Spectrum Disorders: A Cross-Linguistic Investigation [texte imprimé] / Fei CHEN, Auteur ; Candice Chi-Hang CHEUNG, Auteur ; Gang PENG, Auteur . - p.2325-2343. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 52-5 (May 2022) . - p.2325-2343 Mots-clés : Autism Spectrum Disorder  Child  Humans  Imitative Behavior  Linguistics  Pitch Perception  Speech Perception  Asd  Cantonese  Imitation  Lexical tone  Mandarin  Non-linguistic pitch Index. décimale : PER Périodiques Résumé : The conclusions on prosodic pitch features in autism spectrum disorders (ASD) have primarily been derived from studies in non-tonal language speakers. This cross-linguistic study evaluated the performance of imitating Cantonese lexical tones and their non-linguistic (nonspeech) counterparts by Cantonese- and Mandarin-speaking children with and without ASD. Acoustic analyses showed that, compared with typically developing peers, children with ASD exhibited increased pitch variations when imitating lexical tones, while performed similarly when imitating the nonspeech counterparts. Furthermore, Mandarin-speaking children with ASD failed to exploit the phonological knowledge of segments to improve the imitation accuracy of non-native lexical tones. These findings help clarify the speech-specific pitch processing atypicality and phonological processing deficit in tone-language-speaking children with ASD. En ligne : http://dx.doi.org/10.1007/s10803-021-05123-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=476

Neural coding of formant-exaggerated speech and nonspeech in children with and without autism spectrum disorders / Fei CHEN in Autism Research, 14-7 (July 2021)  

Public ISBD [article]  inAutism Research > 14-7 (July 2021) . - p.1357-1374 Titre : Neural coding of formant-exaggerated speech and nonspeech in children with and without autism spectrum disorders Type de document : texte imprimé Auteurs : Fei CHEN, Auteur ; Hongyang ZHANG, Auteur ; Hongwei DING, Auteur ; Suiping WANG, Auteur ; Gang PENG, Auteur ; Yang ZHANG, Auteur Année de publication : 2021 Article en page(s) : p.1357-1374 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder/complications  Child  Child, Preschool  Evoked Potentials  Humans  Language Development  Phonetics  Speech  Speech Perception  Asd  adult-directed speech  formant exaggeration  infant-directed speech  nonspeech Index. décimale : PER Périodiques Résumé : The presence of vowel exaggeration in infant-directed speech (IDS) may adapt to the age-appropriate demands in speech and language acquisition. Previous studies have provided behavioral evidence of atypical auditory processing towards IDS in children with autism spectrum disorders (ASD), while the underlying neurophysiological mechanisms remain unknown. This event-related potential (ERP) study investigated the neural coding of formant-exaggerated speech and nonspeech in 24 4- to 11-year-old children with ASD and 24 typically-developing (TD) peers. The EEG data were recorded using an alternating block design, in which each stimulus type (exaggerated/non-exaggerated sound) was presented with equal probability. ERP waveform analysis revealed an enhanced P1 for vowel formant exaggeration in the TD group but not in the ASD group. This speech-specific atypical processing in ASD was not found for the nonspeech stimuli which showed similar P1 enhancement in both ASD and TD groups. Moreover, the time-frequency analysis indicated that children with ASD showed differences in neural synchronization in the delta-theta bands for processing acoustic formant changes embedded in nonspeech. Collectively, the results add substantiating neurophysiological evidence (i.e., a lack of neural enhancement effect of vowel exaggeration) for atypical auditory processing of IDS in children with ASD, which may exert a negative effect on phonetic encoding and language learning. LAY SUMMARY: Atypical responses to motherese might act as a potential early marker of risk for children with ASD. This study investigated the neural responses to such socially relevant stimuli in the ASD brain, and the results suggested a lack of neural enhancement responding to the motherese even in individuals without intellectual disability. En ligne : http://dx.doi.org/10.1002/aur.2509 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=449 [article] Neural coding of formant-exaggerated speech and nonspeech in children with and without autism spectrum disorders [texte imprimé] / Fei CHEN, Auteur ; Hongyang ZHANG, Auteur ; Hongwei DING, Auteur ; Suiping WANG, Auteur ; Gang PENG, Auteur ; Yang ZHANG, Auteur . - 2021 . - p.1357-1374. Langues : Anglais (eng) in Autism Research > 14-7 (July 2021) . - p.1357-1374 Mots-clés : Autism Spectrum Disorder/complications  Child  Child, Preschool  Evoked Potentials  Humans  Language Development  Phonetics  Speech  Speech Perception  Asd  adult-directed speech  formant exaggeration  infant-directed speech  nonspeech Index. décimale : PER Périodiques Résumé : The presence of vowel exaggeration in infant-directed speech (IDS) may adapt to the age-appropriate demands in speech and language acquisition. Previous studies have provided behavioral evidence of atypical auditory processing towards IDS in children with autism spectrum disorders (ASD), while the underlying neurophysiological mechanisms remain unknown. This event-related potential (ERP) study investigated the neural coding of formant-exaggerated speech and nonspeech in 24 4- to 11-year-old children with ASD and 24 typically-developing (TD) peers. The EEG data were recorded using an alternating block design, in which each stimulus type (exaggerated/non-exaggerated sound) was presented with equal probability. ERP waveform analysis revealed an enhanced P1 for vowel formant exaggeration in the TD group but not in the ASD group. This speech-specific atypical processing in ASD was not found for the nonspeech stimuli which showed similar P1 enhancement in both ASD and TD groups. Moreover, the time-frequency analysis indicated that children with ASD showed differences in neural synchronization in the delta-theta bands for processing acoustic formant changes embedded in nonspeech. Collectively, the results add substantiating neurophysiological evidence (i.e., a lack of neural enhancement effect of vowel exaggeration) for atypical auditory processing of IDS in children with ASD, which may exert a negative effect on phonetic encoding and language learning. LAY SUMMARY: Atypical responses to motherese might act as a potential early marker of risk for children with ASD. This study investigated the neural responses to such socially relevant stimuli in the ASD brain, and the results suggested a lack of neural enhancement responding to the motherese even in individuals without intellectual disability. En ligne : http://dx.doi.org/10.1002/aur.2509 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=449

Non-superior disembedding performance in children with high-functioning autism and its cognitive style account / Fei CHEN in Research in Autism Spectrum Disorders, 2-4 (October 2008)  

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Le style cognitif des autistes de haut niveau : dépendant ou indépendant à l’égard du champ ? / Fei CHEN in Bulletin Scientifique de l'arapi (Le), 16 (décembre 2005)

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Superior nonverbal intelligence in children with high-functioning autism or Asperger's syndrome / Fei CHEN in Research in Autism Spectrum Disorders, 4-3 (July-September 2010)  

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