感官表现和学生索引的听力努力为多说话者语音可理解性提供了互补的贡献
Jacie R McHaney1,2, Kenneth E Hancock3,4, Daniel B Polley3,4
1Department of Communication Science and Disorders, University of Pittsburgh, Pittsburgh, PA, 15260, USA.
Scientific reports
|December 27, 2024
概括
在杂的环境中,成功的语音理解取决于感官处理和倾听的努力. 我们的研究发现,信封后响应 (EFR) 和学生测量的听力努力的结合显著预测了语音可理解性表现.
科学领域:
- 听觉神经科学 听觉神经科学
- 精神声学是一种精神声学.
- 语音感知 语音感知
背景情况:
- 多说话者语音可理解性依赖于将目标语音与背景噪音分开.
- 这种分离涉及感官处理 (自下而上) 和认知努力 (自上而下).
- 了解这些因素之间的相互作用对于解释语音理解困难至关重要.
研究的目的:
- 调查正常听力成年人的时间听力处理和倾听力度之间的相互作用.
- 为了确定这些因素如何与语音噪音可理解性有关.
- 探索对语音分离表现的潜在协同效应.
主要方法:
- 使用对振幅调制音调的信封跟踪响应 (EFR) 测量时间处理.
- 在语音噪音任务中使用瞳孔测量来评估听力.
- 通过使用快速语音噪音 (QuickSIN) 测试来评估语音可理解性.
- 分析了EFR,听力和QuickSIN性能之间的关系.
主要成果:
- 通过瞳孔扩张进行索引的倾听力度,随着背景噪音的增加而增加.
- 在QuickSIN测试中,语音可理解性仅在最具挑战性的信号噪音比率下降.
- 无论是EFR还是听力努力都没有独立预测QuickSIN性能.
- EFR和听力努力的联合影响显著解释了语音可理解性的差异.
结论:
- 听觉感官编码 (EFR) 和倾听力度 (学生响应) 之间存在协同作用,以确定多说话者语音可理解性.
- 这些发现强调了考虑神经效率和认知负载对于全面评估语音理解的重要性.
- 结果表明,新的,多维的方法来评估语音可理解性缺陷,即使在正常听力的人.
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