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Rehabilitation Practice and Science

Translated Title

學齡前兒童音韻異常分析

Abstract

Speech sound errors have been noted as the most common speech disorder among children. However, recent studies about pronunciation errors among preschool children are lacking. Our aim was to evaluate the characteristics and frequency of pronunciation errors among pre-school children with phonological disorder in Taiwan. Between December 2006 and November 2008, we recruited children visiting our outpatient department for evaluation of speech sound errors. Children with speech delay, hearing loss, mental retardation, orofacial abnormalities, chromosomal abnormalities and other pervasive developmental disorders identified by clinical evaluation and clinical birth histories acquired from their families were excluded. Finally, 126 children who met the criteria of phonological disorder were enrolled in this study. All pronunciation errors were analyzed by manner rules, including substitution, omission, distortion and addition. The data of all 126 children were analyzed. The most common error sounds in order of frequency were ”ㄔ”, ”ㄕ” and ”ㄓ”. Each child had an average of 9.2 pronunciation errors. Consonant errors were far more common than were vowel errors. The consonant error rate was 90% and vowel error rate was 10%. The most common pronunciation errors among consonants were substitution errors. The most common pronunciation errors among vowels were omission errors. In this study we found that children with phonological disorder had difficulty with complex sounds, especially those phonetic symbols needing fine oral and nasal coordination. According to our study, careful evaluation and long-term follow-up of these children is necessary.

Language

Traditional Chinese

First Page

159

Last Page

168

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