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경직형 뇌성마비 아동의 하위그룹별 말속도와 쉼의 특성 및 말명료도와의 관계

Characteristics of speech rate and pause in children with spastic cerebral palsy and their relationships with speech intelligibility

말소리와 음성과학 2020년 12권 3호 p.95 ~ 103
정필연, 심현섭,
소속 상세정보
정필연 ( Jeong Pil-Yeon ) - Ewha Womans University Center for Child Development and Disability
심현섭 ( Sim Hyun-Sub ) - Ewha Womans University Department of Communication Disorders

Abstract


The current study aimed to identify the characteristics of speech rate and pause in children with spastic cerebral palsy (CP) and their relationships with speech intelligibility. In all, 26 children with CP, 4 with no speech motor involvement and age-appropriate language ability (NSMI-LCT), 6 with no speech motor involvement and impaired language ability (NSMI-LCI), 6 with speech motor involvement and age-appropriate language ability (SMI- LCT), and 10 with speech motor involvement and impaired language ability (SMI-LCI) participated in the study. Speech samples for the speech rate and pause analysis were extracted using a sentence repetition task. Acoustic analysis were made in Praat. First, it was found that regardless of the presence of language impairment, significant group differences between the NSMI and SMI groups were found in speech rate and articulation rate. Second, the SMI groups showed a higher ratio of pause time to sentence production time, more frequent pauses, and longer durations of pauses than the NSMI groups. Lastly, there were significant correlations among speech rate, articulation rate, and intelligibility. These findings suggest that slow speech rate is the main feature in SMI groups, and that both speech rate and articulation rate play important roles in the intelligibility of children with spastic CP.

키워드

spastic cerebral palsy; rate; pause; intelligibility

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