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Foundations of Vocal Category Development in Autistic Infants.

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Title: Foundations of Vocal Category Development in Autistic Infants.
Authors: Su, Pumpki Lei, Yoo, Hyunjoo, Ramsay, Gordon, Long, Helen L., Bene, Edina R., Klaiman, Cheryl, Pulver, Stormi L., Richardson, Shana, Pileggi, Moira L., Brane, Natalie, Oller, D. Kimbrough
Source: Journal of Autism & Developmental Disorders. Mar2025, Vol. 55 Issue 3, p862-872. 11p.
Subjects: Vocal cord physiology, Asperger's syndrome in children, Infant development, Autism in children, Research funding, Statistical sampling, Severity of illness index, Phonetics, Language acquisition, Child behavior
Abstract: The present study compared the infant's tendency in the first year of life to produce clusters of particular vocal types (squeals, vocants, and growls) in typically developing (TD) and autistic infants. Vocal clustering provides evidence of vocal category formation and may establish a foundation for speech development. Specifically, we compared the extent of vocal clustering across outcome groups and age groups. We also examined the associations between the extent of vocal clustering and later outcomes at 2 years within the autistic group. Randomly selected 5-min segments (27,153 5-min segments total) from 1293 all-day home recordings from 103 TD infants and 44 autistic infants across the first year were humancoded (about 9.75 h of data coded per infant on average) to derive vocal clustering patterns. Fisher's exact tests were used to compare the occurrence of squeals versus vocants, as well as growls versus vocants, across coded segments. Infants in both groups demonstrated clear clustering patterns of squeals and growls across all age groups. The extent of vocal clustering in the autistic group did not correlate significantly with later language, repetitive behavior, or autism severity outcomes. These findings highlight the robustness of the systematic production of vocal categories across the first year of life. The similarity of the clustering patterns in the TD and autistic groups suggests that vocal category formation through active infant vocal exploration is a robust feature of early speech development. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Autism & Developmental Disorders is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Foundations of Vocal Category Development in Autistic Infants.
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  Data: <searchLink fieldCode="AR" term="%22Su%2C+Pumpki+Lei%22">Su, Pumpki Lei</searchLink><br /><searchLink fieldCode="AR" term="%22Yoo%2C+Hyunjoo%22">Yoo, Hyunjoo</searchLink><br /><searchLink fieldCode="AR" term="%22Ramsay%2C+Gordon%22">Ramsay, Gordon</searchLink><br /><searchLink fieldCode="AR" term="%22Long%2C+Helen+L%2E%22">Long, Helen L.</searchLink><br /><searchLink fieldCode="AR" term="%22Bene%2C+Edina+R%2E%22">Bene, Edina R.</searchLink><br /><searchLink fieldCode="AR" term="%22Klaiman%2C+Cheryl%22">Klaiman, Cheryl</searchLink><br /><searchLink fieldCode="AR" term="%22Pulver%2C+Stormi+L%2E%22">Pulver, Stormi L.</searchLink><br /><searchLink fieldCode="AR" term="%22Richardson%2C+Shana%22">Richardson, Shana</searchLink><br /><searchLink fieldCode="AR" term="%22Pileggi%2C+Moira+L%2E%22">Pileggi, Moira L.</searchLink><br /><searchLink fieldCode="AR" term="%22Brane%2C+Natalie%22">Brane, Natalie</searchLink><br /><searchLink fieldCode="AR" term="%22Oller%2C+D%2E+Kimbrough%22">Oller, D. Kimbrough</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Autism+%26+Developmental+Disorders%22">Journal of Autism & Developmental Disorders</searchLink>. Mar2025, Vol. 55 Issue 3, p862-872. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Vocal+cord+physiology%22">Vocal cord physiology</searchLink><br /><searchLink fieldCode="DE" term="%22Asperger's+syndrome+in+children%22">Asperger's syndrome in children</searchLink><br /><searchLink fieldCode="DE" term="%22Infant+development%22">Infant development</searchLink><br /><searchLink fieldCode="DE" term="%22Autism+in+children%22">Autism in children</searchLink><br /><searchLink fieldCode="DE" term="%22Research+funding%22">Research funding</searchLink><br /><searchLink fieldCode="DE" term="%22Statistical+sampling%22">Statistical sampling</searchLink><br /><searchLink fieldCode="DE" term="%22Severity+of+illness+index%22">Severity of illness index</searchLink><br /><searchLink fieldCode="DE" term="%22Phonetics%22">Phonetics</searchLink><br /><searchLink fieldCode="DE" term="%22Language+acquisition%22">Language acquisition</searchLink><br /><searchLink fieldCode="DE" term="%22Child+behavior%22">Child behavior</searchLink>
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  Data: The present study compared the infant's tendency in the first year of life to produce clusters of particular vocal types (squeals, vocants, and growls) in typically developing (TD) and autistic infants. Vocal clustering provides evidence of vocal category formation and may establish a foundation for speech development. Specifically, we compared the extent of vocal clustering across outcome groups and age groups. We also examined the associations between the extent of vocal clustering and later outcomes at 2 years within the autistic group. Randomly selected 5-min segments (27,153 5-min segments total) from 1293 all-day home recordings from 103 TD infants and 44 autistic infants across the first year were humancoded (about 9.75 h of data coded per infant on average) to derive vocal clustering patterns. Fisher's exact tests were used to compare the occurrence of squeals versus vocants, as well as growls versus vocants, across coded segments. Infants in both groups demonstrated clear clustering patterns of squeals and growls across all age groups. The extent of vocal clustering in the autistic group did not correlate significantly with later language, repetitive behavior, or autism severity outcomes. These findings highlight the robustness of the systematic production of vocal categories across the first year of life. The similarity of the clustering patterns in the TD and autistic groups suggests that vocal category formation through active infant vocal exploration is a robust feature of early speech development. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Journal of Autism & Developmental Disorders is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s10803-024-06267-9
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        Text: English
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        PageCount: 11
        StartPage: 862
    Subjects:
      – SubjectFull: Vocal cord physiology
        Type: general
      – SubjectFull: Asperger's syndrome in children
        Type: general
      – SubjectFull: Infant development
        Type: general
      – SubjectFull: Autism in children
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      – SubjectFull: Research funding
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      – SubjectFull: Statistical sampling
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      – SubjectFull: Child behavior
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              Text: Mar2025
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