听觉记忆的变化在前声中的原始听觉记忆及其对双耳听觉处理的影响
Ruiqi Ruan1, Junsheng Hong2, Fan Yuan2
1School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Zhejiang, China.
Hearing research
|October 22, 2025
概括
与年龄相关的听力损失,或听力障碍,损害原始听觉记忆 (PAM) 能力,影响双耳处理. 老年人减少PAM,即使听力正常,也与复杂的声音环境中的困难相关.
科学领域:
- 听觉神经科学 听觉神经科学
- 老年学是一门学科.
- 语音和听力科学 语言和听力科学
背景情况:
- 听力障碍通常影响老年人,导致超出外周听力损失的双耳处理缺陷.
- 有效的声音定位和声音中的语音依赖于在反响条件下处理时间细结构 (TFS).
- 对于TFS集成至关重要的原始听觉记忆 (PAM) 容量,在长症中了解甚少.
研究的目的:
- 调查年龄和听力损失严重程度对PAM能力的影响.
- 为了确定PAM容量是否解释与年龄相关的双耳处理中的下降.
- 在复杂的声学环境中探索PAM和听觉处理之间的关系.
主要方法:
- 一组33名年轻人,45名听力正常的老年人和118名患有大的老年人参与了这项研究.
- 评估了原始听觉记忆 (PAM) 容量,使用了中断相关性测试.
- 双耳处理通过噪音中的语音接收值,竞争性句子测试和双耳数字听力来评估.
主要成果:
- 随着年龄的增长,PAM能力显著下降,与老年人低频听力损失相关.
- 即使是听力正常的老年人也表现出与年龄相关的PAM下降.
- 减少PAM (<8毫秒) 与双耳处理受损和时间缺陷有关.
结论:
- 与年龄相关的听力损失会影响早期的双耳暗示集成,导致双耳处理较差.
- PAM的恶化与复杂的听觉环境中的缺陷密切相关.
- 这些发现有助于更好地理解直接对反响的声音集成和听觉处理.
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