Six month-old infants with deformational plagiocephaly do not differ from unaffected infants with respect to vocal control
| Autor: | Annette Hasenberg, Kathleen Wermke, Philipp Meyer-Marcotty, Tilmann Schweitzer, Christian Linz, Felix Kunz |
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| Rok vydání: | 2017 |
| Předmět: |
Male
medicine.medical_specialty Supine position Sound production Audiology Language Development Bayley Scales of Infant Development Babbling 03 medical and health sciences 0302 clinical medicine Multivariate analysis of variance 030225 pediatrics medicine Humans Language Development Disorders Early language Plagiocephaly Nonsynostotic business.industry Infant General Medicine Language development Otorhinolaryngology Pediatrics Perinatology and Child Health Female Deformational plagiocephaly Sleep business 030217 neurology & neurosurgery |
| Zdroj: | International Journal of Pediatric Otorhinolaryngology. 102:15-20 |
| ISSN: | 0165-5876 |
| DOI: | 10.1016/j.ijporl.2017.08.030 |
| Popis: | Objectives The recommendation of a supine sleeping position led to a significant reduction of SIDS, but increased positional skull deformities (DP). Here, a quantitative analysis of babbling aims to complement previous studies of language-relevant competence based on items of the Bayley-scales that suggested the presence of developmental language delays in DP infants. Measures of fundamental frequency variability as proxies for vocal control are well suited for testing this assumption, since the laryngeal neuro-muscular system matures early and is coupled with brain function while working rapidly in coordinating the structures and mechanisms involved in infant sound production. Methods Sixty-six healthy, full-term infants with normal hearing and a monolingual background took part: (1) moderately asymmetrical DP group - N = 41; 21 male; (2) severely asymmetrical DP group - N = 10; 8 male; and (3) controls - N = 15; 5 male (group assignment based on stereophotogrammetric 360° scans). Fundamental frequency (fo) measures were taken as proxies for vocal control skills during babbling. Results A MANOVA revealed no significant multivariate effect for the shape group, Wilks' λ = 0.86, F(2, 63) = 1.21, p = 0.30, η2 = 0.07 (medium effect-size). The results do not support previous findings based on Bayley scale evaluations that suggested a negative impact of DP on language development during infancy. Conclusions A strong link between DP and brain dysfunction affecting vocal control, which would cause deviations in otherwise healthy DP infants, was not observed. Objective long-term studies of sound production are necessary to identify and/or understand the potential consequences of DP on early language development. |
| Databáze: | OpenAIRE |
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