Motor Speech Profile을 통한 한국 정상화자의 말수행력 특성 분석 = 부산, 경남지역 중심으로

다국어 초록 (Multilingual Abstract)

Purpose: It is critical to implement objective analyses and comparison regarding speech performance in order to assess and understand sub-optimal verbal motor functions. So far, the Motor Speech Profile, a CSL sub program of KayPentax, has been widely utilized for objective speech performance analyses. It is however, difficult to adopt to make comparisons for normal Korean speakers given the threshold and reference values of the program were based on results obtained from foreign speakers. Thus, in the present study, speech performance of normal Korean speakers was analyzed using the Motor Speech Profile thereby providing/establish reference values for Korean. Methods: A total of 334 Korean adults (136 male and 198 female subjects) were enrolled for the study and categorized by age: 20-39 year old, 40-59 year old, and older than 60 year old. Within a normal range of pitch and strength, subject's voice was obtained while phonating vowel /a/ and then, repetition of vowel phonating (i-u), and diadochokinetic assessment (pa, ta, ka, a) were performed. Two experienced examiner edited for ranges of stable voice for further analyses. Results: When compared between sexes, 10 parameters showed statistical significant whilst it was demonstrated that multiple parameters were statistically reduced by each group. Variables related to the vF0, vAm, F2rate, /pa/DDKavp, /pa/DDKjit, /ta/DDKavr were more influenced by the group yet the F0, F2magn, F2aver related variables were rather impacted by subjects' gender. Conclusion: It is significant to establish reference values for speech performance through objective assessment tools. Given the scant information available, further investigations with regards to speech performance in normal Korean speakers may provide objective database to distinguish impaired speech performances resulted by normal aging processes from pathological consequences.

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