单侧耳聋和耳植入物:在一个新的语音噪音和定位任务组合中的表现.
Nadine I Ibrahim1, Obada Abdulrazzak, Chioma Anidi1
1Department of Otolaryngology-Head & Neck Surgery, University of Michigan, Ann Arbor, Michigan.
概括
单侧耳聋 (SSD) 损害了噪音中的语音和声音定位. 耳植入物 (CI) 提高了语音表现,但头部运动可能为SSD患者提供进一步的适应性益处.
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:
- 单侧耳聋 (SSD) 在听觉感知方面存在重大挑战,影响噪音环境中的声音定位和语音理解.
- 补偿性头部运动是听力障碍患者的一个已知的适应策略.
研究的目的:
- 分析SSD对听觉行为的影响,包括声音本地化和语音噪音性能.
- 量化和比较正常听力 (NH) 和SSD,带有和没有耳植入物 (CI) 的个体的补偿头部运动.
主要方法:
- 一项前性研究,涉及NH,SSD和CI的SSD参与者.
- 实验对象在受控的声环境中执行了语音噪音和声音定位任务,同时监控头部运动.
- 分析的重点是定位精度,语音噪音性能和头部运动指标 (移位,发病延迟,响应时间).
主要成果:
- 与NH对照组相比,SSD受试者在语音噪音和声音定位方面的准确性降低.
- 耳植入为声音定位提供了有限的好处,但提高了语音噪声性能,特别是在最佳信号对噪声比率 (SNR) 时.
- 耳植入物使用者表现出较短的头部运动响应时间,尽管发病延迟和位移与仅使用SSD的参与者没有显著差异.
结论:
- 耳植入物主要提高了SSD患者的语音噪音表现.
- 虽然声音定位能力存在,但它们的临床意义可能是温和的.
- 通过设备编程或培训,可以利用适应性头部运动策略,进一步提高SSD中的听觉性能.
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