功能连接性解释了后次区域的神经导航TMS如何差异地影响语言处理
Maria Vasileiadi1, Anna-Lisa Schuler1, Michael Woletz1
1Center for Medical Physics and BME, Medical University of Vienna, Vienna, Austria.
Brain stimulation
|June 30, 2023
概括
研究人员绘制了参与语言产生的大脑区域的地图,在叶中发现了不同语言错误的不同区域. 这项研究阐明了语言的神经解剖学,有助于理解语言困难.
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:
- 维尼克区域,通常是后部上时 (STG),传统上与语言理解有关.
- 新出现的证据表明,后部STG在语言生产中也起着至关重要的作用.
研究的目的:
- 在语言生产过程中调查后部STG区域的选择性招募.
- 在演讲过程中区分叶内的功能角色.
主要方法:
- 在23名健康参与者中使用功能磁共振成像 (fMRI) 和神经导航的跨磁刺激 (TMS).
- 在图片命名任务中应用TMS以诱导语音障碍 (无声症,语音停顿,语义/语音偏听症).
- 利用E场建模和静止状态fMRI绘制错误位置并分析网络连接.
主要成果:
- 声学和语义错误局限于STG.
- 贫血和语言停止局部化到中椎 (MTG).
- 连接分析显示了不同类型的错误的独特网络模式,其中包括一个更大的网络.
结论:
- 这项研究揭示了时圈内用于语言生产的功能解离.
- 研究结果提供了对语言产生的神经解剖学和对言语困难的因果理解的见解.
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