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KMID : 1036820150200020202
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Communication Sciences & Disorders
2015 Volume.20 No. 2 p.202 ~ p.213
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Nasalance Scores of Normal Hearing Children of Deaf Adults and Normal Hearing Adults: Longitudinal Study
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Kim Jae-Ock
Seo Min-Hee
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Abstract
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Objectives: This study intends to identify how the deviant resonant speech of deaf parents influences the resonance of speech sounds produced by their preschool aged children (children of deaf adults, CODA). It was a longitudinal study done over 2 years.
Methods: The following subjects were selected: seven 3 to 4 age children with normal hearing of deaf parents (CODA group); seven age-matched children with normal hearing of normal hearing parents (Normal group). The nasalance scores of the two groups were compared in the production of /a/ vowels and 3 types of sentence stimuli?oral sentences (high pressure consonants and low pressure consonants) and nasal consonants sentences.
Results: The nasalance scores of all stimuli except the nasal consonant sentence in the CODA group were higher than the Normal group in both the 1st and 2nd year of the study. The nasalance scores of the CODA group were significantly lower in vowel /a/ and oral consonant sentences.
Conclusion: The findings indicate that the deviant resonant characteristics of deaf parents may influence the speech of their children during this stage of speech development.
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KEYWORD
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Children of deaf adults (CODA), Nasalance, Vowel, Sentence
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