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Autistic Traits and Enhanced Perceptual Representation of Pitch and Time / M. E. STEWART in Journal of Autism and Developmental Disorders, 48-4 (April 2018)
[article]
Titre : Autistic Traits and Enhanced Perceptual Representation of Pitch and Time Type de document : Texte imprimé et/ou numérique Auteurs : M. E. STEWART, Auteur ; T. D. GRIFFITHS, Auteur ; M. GRUBE, Auteur Article en page(s) : p.1350-1358 Langues : Anglais (eng) Mots-clés : Audition Autism-Spectrum Quotient Enhanced representation Loudness Pitch Sensory processing Time Index. décimale : PER Périodiques Résumé : Enhanced basic perceptual discrimination has been reported for pitch in individuals with autism spectrum conditions. We test whether there is a correlational pattern of enhancement across the broader autism phenotype and whether this correlation occurs for the discrimination of pitch, time and loudness. Scores on the Autism-Spectrum Quotient correlated significantly with the pitch discrimination (r = -0.51, p < 0.05) and the time-interval discrimination (r = -0.45, p < 0.05) task that were based on a fixed reference. No correlation was found for intensity discrimination based on a fixed reference, nor for a variable reference based time-interval discrimination. The correlations suggest a relationship between autistic traits and the ability to form an enhanced, stable and highly accurate representation of auditory events in the pitch and time dimensions. En ligne : http://dx.doi.org/10.1007/s10803-015-2517-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=352
in Journal of Autism and Developmental Disorders > 48-4 (April 2018) . - p.1350-1358[article] Autistic Traits and Enhanced Perceptual Representation of Pitch and Time [Texte imprimé et/ou numérique] / M. E. STEWART, Auteur ; T. D. GRIFFITHS, Auteur ; M. GRUBE, Auteur . - p.1350-1358.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 48-4 (April 2018) . - p.1350-1358
Mots-clés : Audition Autism-Spectrum Quotient Enhanced representation Loudness Pitch Sensory processing Time Index. décimale : PER Périodiques Résumé : Enhanced basic perceptual discrimination has been reported for pitch in individuals with autism spectrum conditions. We test whether there is a correlational pattern of enhancement across the broader autism phenotype and whether this correlation occurs for the discrimination of pitch, time and loudness. Scores on the Autism-Spectrum Quotient correlated significantly with the pitch discrimination (r = -0.51, p < 0.05) and the time-interval discrimination (r = -0.45, p < 0.05) task that were based on a fixed reference. No correlation was found for intensity discrimination based on a fixed reference, nor for a variable reference based time-interval discrimination. The correlations suggest a relationship between autistic traits and the ability to form an enhanced, stable and highly accurate representation of auditory events in the pitch and time dimensions. En ligne : http://dx.doi.org/10.1007/s10803-015-2517-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=352 Brain oscillatory patterns of affective prosody perception in children with autism spectrum disorder / Aleksandra V. MASLENNIKOVA in Research in Autism Spectrum Disorders, 96 (August 2022)
[article]
Titre : Brain oscillatory patterns of affective prosody perception in children with autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Aleksandra V. MASLENNIKOVA, Auteur ; Galina V. PORTNOVA, Auteur ; Olga V. MARTYNOVA, Auteur Article en page(s) : 101993 Langues : Anglais (eng) Mots-clés : ASD Prosody Emotions EEG Pitch Loudness Index. décimale : PER Périodiques Résumé : Background Paralinguistic features, such as prosody (tempo, loudness, and timbre), are an essential marker of a speaker?s emotional state. Abnormal processing of emotional prosody may result in the deficient social behavior associated with autism spectrum disorder (ASD). Method Two groups of children participated in our study: the ASD group consisted of 30 preschoolers from 4 to 6 years of age and 24 typically developing (TD) peers. An electroencephalogram (EEG) was acquired in response to a combination of syllables uttered with the following types of emotional prosody: joy, anger, sadness, fear, and calmness. Results Children with ASD and TD showed a similar EEG oscillatory response to fear and anger prosodies. Significant group differences in power spectral density (PSD) were detected for sad and joy intonations. The PSD differences between pairs of intonations, such as joyful and sad, sad and neutral, or joyful and neutral, were significantly higher in the control group than in the ASD group. EEG responses to affective prosody also demonstrated less hemispheric asymmetry in the ASD than in the TD group. Conclusions Our results suggest that difficulties in emotional prosody recognition in autistic children could be based on the atypical processing of specific acoustic features coding differences between sad, neutral, and joyful intonations and could underlie emotional perception deficits in individuals with ASD. En ligne : https://doi.org/10.1016/j.rasd.2022.101993 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=480
in Research in Autism Spectrum Disorders > 96 (August 2022) . - 101993[article] Brain oscillatory patterns of affective prosody perception in children with autism spectrum disorder [Texte imprimé et/ou numérique] / Aleksandra V. MASLENNIKOVA, Auteur ; Galina V. PORTNOVA, Auteur ; Olga V. MARTYNOVA, Auteur . - 101993.
Langues : Anglais (eng)
in Research in Autism Spectrum Disorders > 96 (August 2022) . - 101993
Mots-clés : ASD Prosody Emotions EEG Pitch Loudness Index. décimale : PER Périodiques Résumé : Background Paralinguistic features, such as prosody (tempo, loudness, and timbre), are an essential marker of a speaker?s emotional state. Abnormal processing of emotional prosody may result in the deficient social behavior associated with autism spectrum disorder (ASD). Method Two groups of children participated in our study: the ASD group consisted of 30 preschoolers from 4 to 6 years of age and 24 typically developing (TD) peers. An electroencephalogram (EEG) was acquired in response to a combination of syllables uttered with the following types of emotional prosody: joy, anger, sadness, fear, and calmness. Results Children with ASD and TD showed a similar EEG oscillatory response to fear and anger prosodies. Significant group differences in power spectral density (PSD) were detected for sad and joy intonations. The PSD differences between pairs of intonations, such as joyful and sad, sad and neutral, or joyful and neutral, were significantly higher in the control group than in the ASD group. EEG responses to affective prosody also demonstrated less hemispheric asymmetry in the ASD than in the TD group. Conclusions Our results suggest that difficulties in emotional prosody recognition in autistic children could be based on the atypical processing of specific acoustic features coding differences between sad, neutral, and joyful intonations and could underlie emotional perception deficits in individuals with ASD. En ligne : https://doi.org/10.1016/j.rasd.2022.101993 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=480