听力和认知衰退在衰老不同影响神经跟踪的语境支持与随机的语言时间跨越语言时间尺度的言语随机
Elena Bolt1,2, Katarina Kliestenec1, Nathalie Giroud1,2,3
1Computational Neuroscience of Speech and Hearing, Department of Computational Linguistics, University of Zurich, Zurich, Switzerland.
PloS one
|December 6, 2024
概括
老年人的认知衰退和听力损失会对语言处理产生不同的影响. 语境线索有助于音节跟踪,建议综合方法,以更好地理解.
科学领域:
- 神经科学是一个神经科学.
- 老年学是一门学科.
- 语音处理 语音处理
背景情况:
- 认知能力下降和听力损失在老年人中很普遍.
- 这些情况往往同时发生,并且独立地影响语音处理.
- 认知衰退,听力损失和语音语境之间的相互作用尚未完全理解.
研究的目的:
- 研究认知衰退和听力损失对神经语音处理的综合影响.
- 检查语境线索在老年人语音感知中的作用.
- 分析认知和听觉障碍如何影响不同语言层面的神经反应.
主要方法:
- 在60岁以上的成年人中评估认知功能 (蒙特利尔认知评估) 和听力能力 (纯音调平均值).
- 在听有支持或随机上下文的句子时录制脑电图 (EEG).
- 分析了听觉唤起的潜力和语音跟踪 (阶段锁定值) 在短语,单词,音节和语音速率.
主要成果:
- 认知能力下降与语音识别精度降低相关,并影响了P2听觉唤起的潜在组件.
- 听力损失影响了神经跟踪的单词和语音速率,但不是短语或音节速率.
- 语境线索显著改善了音节速率的语音跟踪.
结论:
- 认知衰退和听力损失对老年人语音处理的神经基础产生不同的影响.
- 语境信息在增强语音处理方面发挥着至关重要的作用,特别是在音节层面.
- 未来的研究应该探索认知状态,听力能力和语境在老龄人口的语音感知中的相互作用.
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