고기능 자폐스펙트럼장애 아동과 일반 아동의 감정 발화 모방 능력 비교: 청지각적 평가 및 음향학적 분석 = A Comparison of Imitation Abilities of Emotional Utterances in Children with High-Functioning Autism Spectrum Disorders and Typical Development

다국어 초록 (Multilingual Abstract)

Purpose: This study was designed to investigate prosodic characteristics in emotional utterances of children diagnosed with high-functioning autism spectrum disorders (HF-ASD). Method: Ten primary grade children with HF-ASD and 10 children with typical development (TD) aged 7 to 11 years participated in this study. To compare the two groups, auditory-perceptual rating and acoustic analysis of three dimensions [temporal (overall speech rate), intensity (mean intensity, APQ, HNR), and spectral (mean fundamental frequency, SD F0, PPQ)] in emotional utterance tasks (neutral, happiness, anger, sadness) were performed. Results: There were significant differences in auditory-perceptual rating of happiness, anger, and sadness except neutral between the two groups. Also, compared to the TD group in acoustic analysis, children with HF-ASD produced greater mean intensity, SD F0 in happiness, greater SD F0 in anger, and faster overall speech rate in sadness. Conclusion: This study demonstrates that children with HF-ASD have atypical prosodic characteristics in emotional utterances. This finding suggests that the prosodic control ability of HF-ASD should be considered in interventions to enhance their emotional expression skills.

국문 초록 (Abstract)

연구목적: 본 연구는 감정 발화 과제에서 고기능 자폐스펙트럼장애 아동(HF-ASD)과 일반 아동이 감정 발화를 산출할 때, 운율적 특성에 집단 간 차이가 있는지 살펴보고자 하였다. 연구방법: 초등학교(만 7-11세) HF-ASD 아동 10명과 일반 아동 10명을 연구대상으로 감정 발화 모방 과제(중립, 기쁨, 화남, 슬픔)를 통해 청지각적 평가와 시간(전체 말속도), 강도(평균 강도, APQ, HNR), 스펙트럴(평균 기본주파수, 기본주파수의 표준편차, PPQ)의 세 개의 차원에서 음향학적 분석을 실시하였다. 연구결과: 청지각적 평가에서 중립을 제외한 기쁨, 화남, 슬픔의 감정에서 유의한 집단 간 차이를 보였다. 또한 음향학적 분석 결과, 기쁨의 평균 강도와 기본주파수의 표준편차, 화남의 기본주파수의 표준편차, 그리고 슬픔의 전체 말속도에서 집단 간 유의한 차이를 보였다. 결론: 본 연구는 HF-ASD 아동이 감정 발화를 적절히 산출하는 데 어려움을 보이며, 이를 위한 운율 산출 능력 증진을 위한 중재가 요구됨을 시사한다.

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