摘要
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0°、±45°、±90°、4-135°、180°八个方位的角度辨别阈值(minimumaudibleangle,MAA)。结果MAA(0°)=(3.804-0.71)°,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°)=(5.204-1.27)°。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。
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 0°, _±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 ± 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.
出处
《中华耳鼻咽喉头颈外科杂志》
CAS
CSCD
北大核心
2009年第11期906-910,共5页
Chinese Journal of Otorhinolaryngology Head and Neck Surgery
基金
国家自然科学基金面上项目(30973309)
关键词
声定位
辨别阈
测听法
儿童
Sound localization
Differential threshold
Audiometry
Child