连续讲话,在单词之间插入暂停,增加了语音包的皮质跟踪
Suwijak Deoisres1, Yuhan Lu2, Frederique J Vanheusden3
1Institute of Sound and Vibration Research, University of Southampton, Southampton, United Kingdom.
PloS one
|July 27, 2023
概括
在连续演讲中添加暂停,可以显著提高语音外重建的准确性,特别是在三角形和三角形频段. 这种增强主要是由语音发作区域驱动的,这表明对听觉唤起响应检测的潜在临床应用.
科学领域:
- 神经科学是一个神经科学.
- 听觉神经科学 听觉神经科学
- 语音处理 语音处理
背景情况:
- 解码多变量时间响应函数 (解码器) 通过分析语音刺激和神经反应之间的相关性来评估语音包裹的皮质跟踪.
- 众所周知,听觉迟到的反应会随着刺激间隔的延长而改善,但其对语音外重建准确性的影响仍然不清楚.
研究的目的:
- 为了调查是否在连续的语音中添加暂停,可以提高使用解码器的语音信封重建准确度.
- 确定停顿是否影响三角形和三角形频段,以及响应是否以语音发作区域为主.
主要方法:
- 参与者听到连续的自然语音,短暂的 (250毫秒) 暂停的语音和长时间的 (500毫秒) 暂停的语音.
- 电脑电图 (EEG) 和语音信封被记录并过成三角 (1-4 Hz) 和 (4-8 Hz) 频段.
- 分析的重点是整个语音外和细分发病/非发病区域.
主要成果:
- 与自然语音相比,插入暂停的连续语音显著增加了语音包的重建相关性,无论是在三角波和三角波段.
- 重建准确度的提高主要观察到语音外的发病区域.
- 较长的暂停导致重建准确度的更大提高.
结论:
- 在连续的语音刺激中插入暂停会提高语音包的重建准确性,特别是在三角形和三角形频段,并由语音发作驱动.
- 这种技术可以提高在临床环境中听觉唤起的响应的检测能力,尽管它会影响语言的自然性.
- 停顿和开始对解码器的影响在比较不同语音体时需要考虑.
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