Effect of Contralateral Stimulation on Auditory Filter Bandwidth: A Preliminary Study

摘要：

The main goal of this study was to examine the effect of contralateral stimulation on auditory filter shape. Auditory filter was measured at 1 and 2 kHz for normal-hearing listeners using notched-noise method with and without contralateral stimulation presented. A broadband noise was presented as contralateral stimulation at three levels: 50, 60, and 70 dB SPL. Results indicated that contralateral stimulation at 50 dB SPL slightly increased frequency selectivity (i.e. reduced auditory filter bandwidth) for 2 kHz, suggesting that auditory efferent fibers such as medial olivocochlear bundles may function to improve frequency selectivity of the cochlear. Such improvement in the cochlear frequency selectivity appeared to be dependent on signal frequency and intensity of contralateral stimulation.

关键词： Auditory filter contralateral stimulation auditory efferent fiber

作者: Chang Liu

作者单位: Dept.of Communication Sciences and Disorders,University of Texas at Austin,TX 78712,USA

会议类型: 国际会议

会议名称: The 3rd International Conference on Bioinformatics and Biomedical Engineering(iCBBE 2009)(第三届生物信息与生物医学工程国际会议)

会议地点: 北京

会议语种:英文

页码: 1-4

在线出版日期: 2009-06-11（万方平台首次上网日期，不代表论文的发表时间）