年龄,刺激降解和句子语境对听觉时间处理的影响
Zilong Xie1, Madeline Johnson1
1School of Communication Science and Disorders, Florida State University, Tallahassee, Florida 32306, USAzx22c@fsu.edu, mgj22c@fsu.edu.
JASA express letters
|March 20, 2025
概括
随着年龄的增长,语音时间线索敏感性受损,特别是语音发声时间感知. 这种与年龄相关的处理语音的缺陷似乎独立于句子上下文,即使听觉刺激降低了.
科学领域:
- 听觉神经科学 听觉神经科学
- 语音感知 语音感知
- 精神声学是一种精神声学.
背景情况:
- 与年龄相关的听力损失会影响语言理解.
- 时间处理缺陷在老年人中很常见.
- 刺激降解,就像耳植入物所经历的那样,可以进一步挑战听觉感知.
研究的目的:
- 调查年龄,刺激降解和句子上下文如何影响语音时间线索的感知.
- 确定与年龄相关的时间处理缺陷是否受到语言背景或听觉输入质量的调制.
主要方法:
- 使用语音分类任务对20-72岁的成年人进行了测试.
- 刺激包括未处理的和8通道的语音编码语音声音 (牙/帐对比度) 与不同的语音发声时间.
- 句子的上下文被操纵为中立,形偏差或帐偏差.
主要成果:
- 年龄较大与对语音发声时间差异敏感性降低有关.
- 这种与年龄相关的时间敏感性下降在所有句子语境中都被观察到.
- 年龄对时间敏感性的负面影响在与未经处理的刺激相比,对声编码刺激的负面影响较小.
结论:
- 在处理语音时间线索,特别是语音发声时间方面,与年龄相关的缺陷是显著的.
- 从句子上下文的自上而下的语言影响似乎没有减轻与年龄相关的时间处理下降.
- 刺激降解可能与时间暗示灵敏度的年龄相关影响相互作用,这表明听觉处理中的复杂相互作用.
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