语境对语音感知的影响:在语音发声时间连续的声学层次机制的证据
1Department of Education, Hunan First Normal University, Changsha, China; Department of Psychology, University of Jyvaskyla, Jyväskylä, Finland.
NeuroImage
|March 15, 2025
概括
语境线索,如说话者的性别,影响早期的语音处理,影响我们如何感知语音发声时间 (VOT). 这表明,在基本层面上,语境会影响声学编码.
科学领域:
- 心理语言学 心理语言学
- 听觉神经科学 听觉神经科学
- 语音感知 语音感知
背景情况:
- 语境信息显著塑造了语音感知.
- 正确的处理水平,其中的上下文与声学线索集成是有争议的.
- 具体来说,目前还不清楚上下信息是否会影响早期的声学编码.
研究的目的:
- 调查说话者的性别背景如何影响语音感知.
- 为了确定情境线索是否调节早期声学处理阶段.
- 根据前身句子的性别,检查神经对语音发声时间 (VOT) 变化的反应.
主要方法:
- 利用机器学习算法来解码语音发声时间 (VOT).
- 在语音感知任务中记录了脑电图 (EEG) 反应.
- 展示了参与者在男性和女性前体声之后的VOT连续体.
主要成果:
- 在早期的EEG信号中发现了VOT连续性的线性表示.
- 基于性别的上下文线索在这个早期阶段调节了语音感知.
- 在整个VOT连续性中观察到环境影响,而不仅仅是在特定的点上.
结论:
- 语境信息在早期的声学处理水平上影响语音感知.
- 基于性别的背景对VOT的感知产生了广泛而一致的调制.
- 这些发现支持在语音处理中整合上下文的一般声学层次机制.
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