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Marginal and Canonical Babbling in 10 Infants at Risk for Cerebral Palsy.

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Title: Marginal and Canonical Babbling in 10 Infants at Risk for Cerebral Palsy.
Authors: Long, Helen L.1 helen.long@wisc.edu, Hustad, Katherine C.1,2
Source: American Journal of Speech-Language Pathology. Aug2023, Vol. 32 Issue 4S, p1835-1849. 15p.
Subject Terms: *Movement disorders, *Developmental disabilities, *Speech evaluation, *Language acquisition, *Cognitive testing, *Children, Vowels, Infant development, Risk assessment, Phonetics, Descriptive statistics, Research funding, Cerebral palsy, Speech, Secondary analysis, Disease risk factors
Geographic Terms: United States
Abstract: Purpose: This study is a preliminary quantification and characterization of the development of marginal and canonical syllable patterns in 10 infants at risk for cerebral palsy (CP). Method: We calculated marginal and canonical babbling ratios from parent– infant laboratory recordings of 10 infants at two time points, approximately 13 and 16 months of age. The frequency and diversity of labial, coronal, and velar types of marginal and canonical syllables were also examined. Differences across three outcome groups were compared: infants later diagnosed with CP (n = 3, CP group), risk of CP due to ongoing gross motor delays (n = 4, risk group), and current typically developing status with resolved gross motor delays (n = 3, TDx group). Performance on the Mullen Scales was included for perspective on cognitive development. Results: Higher marginal syllable ratios were observed in the CP and risk groups than the TDx group. An increasing canonical syllable ratio across the two ages was consistently observed in the TDx group. The TDx group produced a greater frequency and diversity of canonical syllable types than the risk and CP groups, and of marginal syllable types than the CP group. Conclusions: This study offers preliminary support for the possibility that speech motor impairment in infants with CP have the potential to be observed and quantified early in vocal development prior to the expected onset of first words. Prolonged rates of marginal syllable forms may be suggestive of speech motor impairment; however, additional longitudinal outcome data over a longer time course and a larger sample of infants are needed to provide further support for this possibility. [ABSTRACT FROM AUTHOR]
Copyright of American Journal of Speech-Language Pathology is the property of American Speech-Language-Hearing Association 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: Education Research Complete
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  Data: Marginal and Canonical Babbling in 10 Infants at Risk for Cerebral Palsy.
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  Data: <searchLink fieldCode="AR" term="%22Long%2C+Helen+L%2E%22">Long, Helen L.</searchLink><relatesTo>1</relatesTo><i> helen.long@wisc.edu</i><br /><searchLink fieldCode="AR" term="%22Hustad%2C+Katherine+C%2E%22">Hustad, Katherine C.</searchLink><relatesTo>1,2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22American+Journal+of+Speech-Language+Pathology%22">American Journal of Speech-Language Pathology</searchLink>. Aug2023, Vol. 32 Issue 4S, p1835-1849. 15p.
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  Data: Purpose: This study is a preliminary quantification and characterization of the development of marginal and canonical syllable patterns in 10 infants at risk for cerebral palsy (CP). Method: We calculated marginal and canonical babbling ratios from parent– infant laboratory recordings of 10 infants at two time points, approximately 13 and 16 months of age. The frequency and diversity of labial, coronal, and velar types of marginal and canonical syllables were also examined. Differences across three outcome groups were compared: infants later diagnosed with CP (n = 3, CP group), risk of CP due to ongoing gross motor delays (n = 4, risk group), and current typically developing status with resolved gross motor delays (n = 3, TDx group). Performance on the Mullen Scales was included for perspective on cognitive development. Results: Higher marginal syllable ratios were observed in the CP and risk groups than the TDx group. An increasing canonical syllable ratio across the two ages was consistently observed in the TDx group. The TDx group produced a greater frequency and diversity of canonical syllable types than the risk and CP groups, and of marginal syllable types than the CP group. Conclusions: This study offers preliminary support for the possibility that speech motor impairment in infants with CP have the potential to be observed and quantified early in vocal development prior to the expected onset of first words. Prolonged rates of marginal syllable forms may be suggestive of speech motor impairment; however, additional longitudinal outcome data over a longer time course and a larger sample of infants are needed to provide further support for this possibility. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of American Journal of Speech-Language Pathology is the property of American Speech-Language-Hearing Association 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.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=ehh&AN=170032236
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        Value: 10.1044/2022_AJSLP-22-00165
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        Text: English
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        PageCount: 15
        StartPage: 1835
    Subjects:
      – SubjectFull: Movement disorders
        Type: general
      – SubjectFull: Developmental disabilities
        Type: general
      – SubjectFull: Speech evaluation
        Type: general
      – SubjectFull: Language acquisition
        Type: general
      – SubjectFull: Cognitive testing
        Type: general
      – SubjectFull: Children
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      – SubjectFull: Vowels
        Type: general
      – SubjectFull: Infant development
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      – SubjectFull: Risk assessment
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      – SubjectFull: Phonetics
        Type: general
      – SubjectFull: Descriptive statistics
        Type: general
      – SubjectFull: Research funding
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      – SubjectFull: Cerebral palsy
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      – SubjectFull: Speech
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      – SubjectFull: Secondary analysis
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      – SubjectFull: Disease risk factors
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      – SubjectFull: United States
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      – TitleFull: Marginal and Canonical Babbling in 10 Infants at Risk for Cerebral Palsy.
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              Text: Aug2023
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