이 연구의 목적은 청각장애 아동 집단의 어두 파열음 지각 발달이 건청 아동과 비교하여 차이가 있는가를 알아보고, 청각장애 아동 집단이 발성 유형을 지각할 때 VOT 단서를 이용하여 지각하는 가를 밝혀 청능훈련과 청각재활의 기초자료로 활용하는 것이다. 이 연구를 위해 VOT를 변화시킨 합성음(/ph, th, kh/+/a/)을 이용하여 청각장애 아동 11명과 건청 아동 7명에게 지각실험을 실시하였다. 연구 결과, 청각장애 아동 집단과 건청 아동 집단은 VOT 변화에 따라 집단 간 유사한 지각 패턴을 나타내었으나, 청각장애 아동 집단은 건청 아동 집단에 비해서 가변성이 높은 것으로 나타났다.

The purpose of this study was to investigate the perception of stop-consonants in initial position by children with hearing impairment was different from that of peer normal children. For this purpose, the perceptional experiment of vocal types of the stops in condition of bilabial, alveolar and velar was performed. Participants were classified into two groups, 11 with children with hearing impairment, 7 with normal children for this study. Research question are as follows : the author focused on the perception according to VOT modulation of stop consonants by the children with hearing impairment, normal children. 1) Is there any difference in the perception of the stop phonation types among groups? 2) Is there any difference in the perception of the categorical perception among groups? Children with hearing impairment showed similar responses pattern with that of the normal children, but it was not stable. Also, children with hearing impairment showed inconsistent response pattern in triple confrontational perception compared with normal children. In summary, children with hearing impairment showed similar perceptual pattern to that of the normal children but their response pattern was rather unstable.

The purpose of this study was to investigate the perception of stop-consonants in initial position by children with hearing impairment was different from that of peer normal children. For this purpose, the perceptional experiment of vocal types of the stops in condition of bilabial, alveolar and velar was performed. Participants were classified into two groups, 11 with children with hearing impairment, 7 with normal children for this study. Research question are as follows : the author focused on the perception according to VOT modulation of stop consonants by the children with hearing impairment, normal children. 1) Is there any difference in the perception of the stop phonation types among groups? 2) Is there any difference in the perception of the categorical perception among groups? Children with hearing impairment showed similar responses pattern with that of the normal children, but it was not stable. Also, children with hearing impairment showed inconsistent response pattern in triple confrontational perception compared with normal children. In summary, children with hearing impairment showed similar perceptual pattern to that of the normal children but their response pattern was rather unstable.

VOT, perceptional experiment