在前额叶和叶皮层的共享声学网络用于语言的产生和理解
Xenia Dmitrieva1, Jean-Luc Anton2, Amie Fairs1
1Aix-Marseille Université (AMU) & CNRS, Laboratoire de Parole et Langage (LPL), Aix-en-Provence, France.
Cerebral cortex (New York, N.Y. : 1991)
|October 13, 2025
概括
这项研究表明,产生和理解口语激活了类似的大脑网络. 运动和皮层中特定于语音体的活动支持语言的产生和理解.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 语言学的语言学.
背景情况:
- 传统的神经生物学模型提出了用于语言的产生和理解的独特大脑网络.
- 在这两种模式中,语音处理的特定神经支仍然不完全理解.
研究的目的:
- 通过使用功能磁共振成像 (fMRI) 调查语言的产生和理解是否招募类似的语音特异的神经网络.
- 在单词生成和理解任务期间,比较大脑对不同语音类别 (双双音 vs 气囊音) 的反应.
主要方法:
- 功能磁共振成像 (fMRI) 用于37名参与者.
- 参与者完成了语言生产和理解任务,涉及最少的单词对,最初的语音不同 (例如",子"和"驴").
- 为了检查地形活动模式,进行了个别特定的兴趣区域分析.
主要成果:
- 类似的感觉运动网络被激活为语言的生产和理解.
- 在运动区域观察到特定于语音的地形活动模式,分别在舌头和嘴唇皮层中分别对膜和双唇初始单词进行明显的激活.
- 后部和中部上叶皮在两个任务中表现出相似的活动模式,与双 - 初始单词相比,膜 - 初始单词的激活增强.
结论:
- 这些发现挑战了经典的神经生物学模型,因为它表明语言生产和理解的神经网络的显著重叠.
- 有证据支持皮质组织,其中声学是由运动皮质中类似的地形激活和两种模式中皮质中分布式激活所代表的.
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