在L1和L2语音运动控制系统中,长期感觉运动适应的神经机制
Xiao Cai1, Yulong Yin2, Qingfang Zhang3
1Department of Psychology, Renmin University of China, Beijing, China; School of Foreign Languages, Renmin University of China, Beijing, China.
Brain and language
|November 13, 2025
概括
第一语言 (L1) 讲者表现出高效的感觉运动适应,而第二语言 (L2) 讲者则稍后适应. 听觉反使用和神经激活的差异突出了不同的语音运动学习机制.
科学领域:
- 神经科学是一个神经科学.
- 语音科学 语言科学
- 语言学的语言学.
背景情况:
- 感官运动适应对于语音产生至关重要.
- 了解第一语言 (L1) 和第二语言 (L2) 发言者的神经差异对于语音治疗至关重要.
研究的目的:
- 为了比较L1和L2扬声器中长期感觉运动适应的神经机制.
- 调查听觉反在动力指挥更新中的作用.
- 探索语言特异的神经网络招募和阶段连贯性模式.
主要方法:
- 使用了持续扰动模式.
- 收集的行为和事件相关潜力 (ERP) 数据.
- 采用源本地化和-马相连贯性分析.
主要成果:
- L1说话者在所有阶段都表现出适应;L2说话者仅在后期阶段表现出适应.
- 两组都使用了类似的神经网络,但L2说话者表现出更大的激活程度.
- 观察到theta-gamma相相干性的语言特异性变化,可能表明表示稳定性.
结论:
- L2扬声器可能在使用听觉反来适应电机指挥方面效率较低.
- 在适应过程中,神经网络的招募和阶段一致性模式在L1和L2说话者之间有所不同.
- 结果提供了对L2语音不准确性和运动系统功能的见解.
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