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在人类喉运动皮层中,神经控制词汇语调的产生
Junfeng Lu1,2,3, Yuanning Li4,5,6,7, Zehao Zhao1,2,3
1Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, 200040, China.
Nature communications
|October 31, 2023
概括
研究人员发现了大脑如何控制语音语言中词汇音调的音调. 喉运动皮层中的本地大脑区域编码运动信息,而不是特定的音色类别,以产生音调动态.
科学领域:
- 神经科学是一个神经科学.
- 语言学的语言学.
- 语音制作 语音制作
背景情况:
- 音调语言使用词汇音调,需要精确的声张力控制来实现单词的含义.
- 了解词汇语调产生的神经机制对于言语科学至关重要.
研究的目的:
- 为了研究普通话说者的词汇语音产生的神经基础.
- 为了确定大脑如何编码词汇音调的音调动力学.
主要方法:
- 高密度的直接皮质录音在普通话母语的人.
- 音调生产的计算建模.
- 喉运动皮质 (LMC) 的直接电皮刺激.
主要成果:
- 喉运动皮质 (LMC) 为音调动力学编码关节动力学信息,而不是音调类别.
- 确定了LMC群体活动的明显模式,用于提高和降低音调.
- 对特定的LMC群体的皮质电刺激在发声过程中引起了音调的变化.
结论:
- 这项研究揭示了对词汇音调的声调调控的神经基础.
- 喉运动皮质 (LMC) 在通过动态编码生成词汇音调的音调轮方面发挥着关键作用.
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