CAJ | 학술논문

目的探索一种适合检测4岁正常儿童水平方位声源定位能力的方法,并对测试结果进行分析.方法标准测听室内,利用自制的声源定位测试仪,采用儿童角度辨别阈方法测试10名4岁正常儿童水平01°±45°、±90°、±135°、180°八个方位的角度辨别阈值(minimum audible angle,MAA).结果 MAA(0°)=(3.80±0.71)°,MAA(-45°)=(7.70±1.27)°,MAA(45°)=(7.10±1.39)°,MAA(-90°)=(8.15±2.38)°,MAA(90°):(7.61±2.47)°,MAA(-135°)=(8.85±2.70)°,MAA(135°)=(8.30±1.42)°,MAA(180°)=(5.20±1.27)°.受试儿童水平8个方位的MAA均小于10°,且正前方辨别阈值最小,正后方次之.结论儿童角度辨别阈测试方法可用来评估4岁正常儿童声源定位能力.
목적 탐색일충괄합검측4세정상인동수평방위성원정위능력적방법,병대측시결과진행분석.방법 표준측은실내,이용자제적성원정위측시의,채용인동각도변별역방법측시10명4세정상인동수평01°±45°、±90°、±135°、180°팔개방위적각도변별역치(minimum audible angle,MAA).결과 MAA(0°)=(3.80±0.71)°,MAA(-45°)=(7.70±1.27)°,MAA(45°)=(7.10±1.39)°,MAA(-90°)=(8.15±2.38)°,MAA(90°):(7.61±2.47)°,MAA(-135°)=(8.85±2.70)°,MAA(135°)=(8.30±1.42)°,MAA(180°)=(5.20±1.27)°.수시인동수평8개방위적MAA균소우10°,차정전방변별역치최소,정후방차지.결론 인동각도변별역측시방법가용래평고4세정상인동성원정위능력.
Objective To investigate the effective way to test 4-year-old children's ability of sound localization in the horizontal plane. Methods Using minimum audible angle(MAA)measure procedure on the basis of conditioned play audiometry, sound localization test Was conducted for 4-year-old children at 01°,±45°,±90°,±135°and 180°standard positions in the horizontal plane. Results The outcome of sound localization test for 4-year-old children separately were: MAA(0°)=(3.80 4-0.71)°,MAA(-45°)=(7.70±1.27)°,MAA(45°)=(7.10±1.39)°,MAA(-90°)=(8.15±2.38)°,MAA(90°)=(7.61±2.47)°,MAA(-135°)=(8.85±2.70)°,MAA(135°)=(8.30±1.42)°,MAA(180°)=(5.20±1.27)°. The MAA of eight standard positions were less than 10°,and the MAA(0°)was the smallest one. Conclusions Our findings suggest that MAA test procedure on the basis of conditioned play audiometry could be used to evaluate the ability of sound localization in 4-year-old children.