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KMID : 1035420210090040167
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Journal of The Korean Society of Integrative Medicine
2021 Volume.9 No. 4 p.167 ~ p.181
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Acoustic duration of consonants and words by phonetic complexity in children with functional articulation and phonological disorders
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Kang Eun-Yeong
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Abstract
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Purpose : This study was conducted to investigate whether phonetic complexity affected the type and frequency of articulation errors and the acoustic duration of consonants and words produced by children with functional articulation and phonological disorders.
Methods : The participants in this study were 20 children with functional articulation and phonological disorders and 20 children without such disorders who were between 3years 7months old and 4years 11months old. The participants were asked to name what they saw in pictures and their responses were recorded. The types and frequencies of articulation errors and the acoustic duration of words were analyzed and words were categorized as being of either ‘high’ or ‘low’ phonetic complexity. The acoustic duration of initial and final consonants and vowels following initial consonants were compared between the groups according to articulatory complexity.
Results : Children with functional articulation and phonological disorders produced articulation errors more frequently when saying high complexity words and had longer word duration when saying low-complexity words than children without such disorders. There was no major difference in initial and final consonant duration between the groups. but the main effect of articulatory complexity on the duration of both consonants was significant.
Conclusion : These results suggest that the articulatory-phonic structure of words influences the speech motor control ability of children with functional articulation and phonological disorders. When articulating consonants, children with functional articulation and phonological disorders had speech motor control ability similar to that of children without such disorders.
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KEYWORD
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acoustic duration, articulation and phonological disorders, phonetic complexity
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