中国听力语言康复科学杂志Issue(5)：343-346,4.DOI:10.3969/j.issn.1672-4933.2013.05.004
听障儿童双耳双模式配戴的声源定位能力初探*
The Sound Localization Abilities of Implanted Children Fitted with Hearing Aids in the Opposite Ears
摘要
Abstract
Objective To investigate that if the binaural-bimodal fitting can improve the sound localization abilities of hearing-impaired children and what factors influence the binaural-bimodal advantage in sound localization ability. Methods The sound localization abilities of 16 subjects were tested under different hearing aid modes and sound source angles with two-alternative forced-choice tasks. Results When the sound source was located in 90°/270°, 38% of the subjects showed the binaural-bimodal advantage, and the proportion fell to 25% in 45°/315°location. According to further analysis, the binaural-bimodal advantage in sound localization was closely related with the microphone positions of CI and the experience with hearing aids before CI surgery. Conclusion It's difficult for children with a CI to localize the sound source. The binaural-bimodal condition is better than unilateral CI condition when the sound is located on the left and right side (maximum IID and ITD clues), and the advantage decreases with the decrease of the sound source angles. The position of CI microphone can influence the sound localization ability, and the experience with hearing aids before CI surgery may be another factor that affects the binaural-bimodal advantage in sound localization.关键词
听障儿童/双耳双模式配戴/声源定位Key words
Hearing-impaired child/Binaural-bimodal fitting/Sound localization引用本文复制引用
赵航,孙喜斌,崔玉华,杨影..听障儿童双耳双模式配戴的声源定位能力初探*[J].中国听力语言康复科学杂志,2013,(5):343-346,4.基金项目
卫生行业科研专项项目任务单元课题 （）
上海市哲学社会科学基金青年项目 （）
