语言功能的皮层位置在语言之间可能有所不同,而白质路径在脑损伤患者中是相似的
Corinna Boerner1,2, Axel Schroeder1,2, Bernhard Meyer1
1Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University Munich, 81675 Munich, Germany.
Brain sciences
|August 26, 2023
概括
这项研究探讨了使用脑损伤患者的大脑中的语言表达. 虽然一些皮层语言区域显示出基于语言组的差异,但皮层下路径在各种语言和双语中看起来很相似.
科学领域:
- 神经科学是一个神经科学.
- 语言学的语言学.
- 认知科学 认知科学
背景情况:
- 语言的神经基础包括皮层和皮下结构.
- 研究跨不同语言和双语的语言表达对于理解大脑可塑性至关重要.
研究的目的:
- 为了检查不同语言的脑皮层语言区域和皮层下白质路径在脑损伤患者说各种语言的差异.
- 探索语言背景 (巴尔托斯拉夫语与印欧语) 和双语对语言网络的影响.
主要方法:
- 利用导航重复性跨脑磁性刺激 (nrTMS) 来识别皮质语言部位.
- 采用扩散张力成像 (DTI) 与纤维跟踪来分析皮质下语言-口才白质路径.
- 分析了40名脑损伤患者的刺激部位和白质通路体积的错误率.
主要成果:
- 在巴尔托斯拉夫语和印欧语的发言者之间,在额头和身刺激部位观察到错误率的显著差异.
- 双语个体在叶刺激部位的错误率中显示出显著的差异.
- 在语言群体或双语状态之间,在皮层下白质语言通路的体积上没有发现显著差异.
结论:
- 皮层语言表示可能会表现出由语言背景和语义处理影响的微妙变化,尽管这些发现需要进一步的统计证实.
- 皮层下语言结构和路径似乎在不同语言和双语之间在很大程度上得到保护.
- 这项研究表明,在不同语言群体之间,语言处理的潜在相似的潜在皮层和皮下网络.
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