语音运动系统参与挑战语音感知:激活概率估计元分析
Maxime Perron1,2, Veronica Vuong1,3,4, Madison W Grassi1
1Rotman Research Institute, Baycrest Academy for Research and Education, Toronto, Ontario, Canada.
Human brain mapping
|September 13, 2024
概括
发言的产生和感知共享神经资源,特别是在左额头和部区域. 这种重叠有助于理解具有挑战性的语言,整合感官和运动控制.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 语音和听力科学 语言和听力科学
背景情况:
- 讨论了语音产生和感知之间的相互作用,理论表明共享的神经机制.
- 一些研究表明,在困难的听力场景中,增强语音运动系统的参与,以改善感知.
研究的目的:
- 使用元分析研究语音产生与各种具有挑战性的语音感知条件之间的神经重叠.
- 识别特定的大脑区域和与语音感知中的感觉运动集成相关的条件.
主要方法:
- 基于坐标的元分析使用激活概率估计 (ALE).
- 检查了语音生产和三个感知任务的神经重叠:语音噪音,光谱退化语音和语言复杂语音.
主要成果:
- 在左额头,岛屿和部区域发现了显著的神经重叠,包括左额头部 (FOC),下额头 (IFG),时间平面 (PT) 和补充前运动区域 (SMA前).
- 左IFG对语言内容表现出敏感性,而左SMA对信号质量 (语音退化/噪音) 呈现出反应.
- 左侧PT和FOC始终被激活,后侧FOC在所有条件中都重叠.
结论:
- 确定了与语境独立 (FOC,PT) 和语境依赖 (SMA前,后侧IFG) 的语音运动区域,参与挑战语音感知.
- 这些已识别的区域可能支持感觉运动集成和语音感知和语音生成的执行控制.
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