학령전기 말소리장애 아동의 음운인식능력에 따른 음운처리능력과 언어능력 = Phonological Processing and Language Skills in Preschool Children with Speech Sound Disorders According to Phonological Awareness Skills

다국어 초록 (Multilingual Abstract)

Purpose : The existing literature has conflicting findings about the pre-literacy and language skills of children with speech sound disorders (SSD), which may be due to the heterogeniety within SSD. The purpose of the study was to examine whether or not the children with SSD with low phonological awareness (PA) are at greater risk for acquiring phonological processing skills (phonological memory and phonological retrieval) and language skills (expressive vocabulary and sentence repetition) than the chidlren with SSD with high PA. Methods : Eleven 56~75 month-old children with SSD (5 children with SSD-low PA and 6 children with SSD-high PA) and their sex- and age-matched typically-developing peers (TD) were participated. The performance in PA task, non-word repetition task (NWR), rapid automatic naming task (RAN) (alphanumeric and nonalphanumeric), sentence repetition task (SR) and REVT of children with SSD-low PA and SSD-high PA were compared to those of their typical peers. Results : Findings indicate that the SSD-low PA group performed more poorly on NWR, RAN-alphanumeric, and REVT-expressive than the TD group. The SSD-high PA group performed better on SR than other groups and showed the performance levels between SSD-low PA and TD groups on the other tasks, though not significant. Conclusions : The results of this study support the hypothesis that children with SSD-low PA may be more vulnerable to difficulties in phonological processing and language skills than children with SSD-high PA and TD children.

국문 초록 (Abstract)

목적 : 기존의 말소리장애 아동을 대상으로 한 연구들에서 이들의 음운처리능력과 언어능력에서일관적이지 않은 결과를 보인 이유는 학령전기 말소리장애 아동 집단의 이질성 때문일 수 있다. 이에본 연구에서는 본 연구에서는 4~6세 학령전기 말소리장애 아동을 음운인식능력에 따라 두 집단으로나누어 이들의 음운처리능력(음운기억, 음운인출)과 언어능력(표현어휘, 문장 따라말하기)을 살펴보고자하였다. 방법: 56~75개월 사이의 말소리장애 아동 11명과 이들과 성별과 월령을 일치시킨 일반 아동11명이 본 연구에 참여했다. 다시 말소리장애 아동을 음운인식능력에 따라 나눈 후, 세 집단 간음운인식 과제, 비단어 따라말하기 과제, 빠른 이름대기 과제(비문자 조건, 문자 조건), REVT(수용, 표현), 문장 따라말하기 과제에서의 수행을 비교했다. 결과: 연구결과, 비단어 따라말하기 과제, 빠른이름대기 과제-문자 조건, REVT 표현어휘력에서 음운인식능력이 낮은 말소리장애 아동은 일반아동보다 유의미하게 낮은 수행을 보였다. 비록 유의미한 차이는 없었으나, 음운능력이 좋은 말소리장애아동의 경우 다른 과제들에서 음운능력이 낮은 말소리장애 아동 집단보다는 높고 또래 아동 집단보다는낮은 수행 경향성을 보였던 것과는 달리 문장 따라말하기 과제에서는 가장 우수한 수행 경향성을보였다. 결론 : 본 연구결과는 말소리장애 아동의 낮은 음운인식능력은 문해능력 결함의 위험요인이라는 것을 확인할 수 있었다. 본 연구는 학령전기 말소리장애 아동 집단의 이질성을 확인하고임상에서 이들의 음운처리능력 평가의 중요성을 확인한 예비 가이드라인을 제시했다는 데에 의의가있다.

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