|
KMID : 1036820140190040532
|
|
Communication Sciences & Disorders
2014 Volume.19 No. 4 p.532 ~ p.539
|
|
|
Cases with Speech Sound Disorders Assimilating Plosives and Nasals to Various Vowel Featur
|
|
Kim Min-Jung
|
|
|
Abstract
|
|
|
Objectives: To enhance the efficiency of treatment, it is important to understand the influence of coarticulation on speech errors. However, there is little Korean research on coarticulation for speech sound disorders beyond the influence of vowel tongue position. This research examines detailed coarticulatory phenomena in various error patterns with plosives and nasals.
Methods: Data was collected from 4 children, between the ages of late 2 to middle 4, with speech sound disorders with more than 3 consistent manner or place change patterns in plosives and nasals. The speech samples were collected from a formal word test and spontaneous conversation. Plosives and nasals in the samples were analyzed for percentage of feature retention and percentage of error patterns according to phonological contexts.
Results: The various phonological error patterns showed on the same consonant. They were influenced by the following vowel features. Velar fronting, velarization, and alveolarization were influenced by horizontal tongue position. Labialization was influenced lip rounding, posterior nasal frication was influenced by vertical tongue position. Denasalization was influenced by oral resonance.
Conclusion: These children with speech sound disorders demonstrated various phonological error patterns according to the aforementioned vowel features. The present study showed that it is important to analyze vowel contexts to understand the effect of coarticulation on speech errors.
|
|
|
KEYWORD
|
|
|
Speech sound disorders, Coarticulation, Vowel feature, Phonological error pattern
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|