用移动耳植入物研究处理器测量双耳膜线索的侧向化)
Stephen R Dennison1, Tanvi Thakkar2, Alan Kan3
1University of Wisconsin-Madison, Madison, Wisconsin 53711, USA.
The Journal of the Acoustical Society of America
|June 30, 2023
概括
双边耳植入物 (BICI) 用户更多地依赖于水平差异而不是时间差异来定位声音. 新的研究表明,同步处理器可以帮助BICI听众完成空间听力任务.
科学领域:
- 听力学 听力学是指听力学.
- 神经科学是一个神经科学.
- 生物医学工程 生物医学工程
背景情况:
- 双边耳植入体 (BICI) 用户对对声部定位至关重要的双耳线索的访问有限.
- 现有的处理器往往缺乏同步,阻碍了使用间隔时间差异 (ITDs).
研究的目的:
- 调查BICI听众如何利用组合的音声间水平差异 (ILD) 和信封ITD进行声音本地化.
- 评估CCi-MOBILE研究处理器在向BICI用户提供空间线索方面的潜力.
主要方法:
- 使用CCi-MOBILE处理器向BICI听众呈现振幅调制的刺激,具有不同的ILD和封面ITD.
- 听力正常 (NH) 的听众使用类似的刺激进行了测试,以进行比较.
- 对六名BICI和十名NH听者的数据进行了线索权重分析.
主要成果:
- 在BICI和NH听众中,声间水平差异 (ILDs) 发现是声音横向化的一个更重要的提示,而不是信封声间时间差异 (ITDs).
- 封面ITD有助于NH听众的侧面化,但对BICI听众的影响微不足道.
结论:
- CCi-MOBILE研究处理器适用于BICI用户的双耳测试.
- 调查结果为开发改进的双边处理策略提供了洞察力,以提高BICI听众的空间听力.
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