结构和功能神经基质,是具体效应的基础
Jing Yan1,2, Wenjuan Li1, Tingting Zhang1
1MOE Key Lab for Neuroinformation, High-Field Magnetic Resonance Brain Imaging Key Laboratory of Sichuan Province, Center for Psychiatry and Psychology, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, Sichuan, China.
Brain structure & function
|June 30, 2023
概括
具体效应,有利于具体的单词,与大脑结构和连接性有关. 更大的右半球参与度和网络连接性预测了更好的记忆力,具体而不是抽象的词.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 神经成像是一种神经成像.
背景情况:
- 具体效应描述了与抽象词相比,具体词的处理速度更快,更准确.
- 使用基于任务的fMRI进行的先前研究表明,不同的神经机制是具体和抽象文字处理的基础.
- 具体效应的神经基础,特别是结构和功能连接,仍然不太了解.
研究的目的:
- 研究具体效应与大脑结构 (灰质体积,GMV) 之间的关系.
- 检查具体效应与静止状态功能连接 (rsFC) 之间的关联.
- 确定GMV和rsFC如何共同和单独预测具体性效应.
主要方法:
- 利用神经成像技术评估灰色物质体积 (GMV) 和静止状态功能连接 (rsFC).
- 相关的GMV和rsFC测量与具体效应的个体差异.
- 研究了神经成像标记物和具体效应之间的预测关系.
主要成果:
- 在左下额头 (IFG),右中 (MTG),右补充运动区域和右前带带皮层 (ACC) 的GMV与具体效应之间发现了负相关性.
- 观察到左IFG,右MTG和右ACC的rsFC与默认模式的节点,前对面和背侧注意力网络和具体效应之间的正相关性.
- 无论是GMV还是rsFC都是具体效应的重要预测因素.
结论:
- 大脑网络内部和大脑网络之间的功能连接更强,特别是右半球参与度更高,预测了更大的具体性效应.
- 这些发现突出了结构和功能大脑组织在支持具体和抽象词语的差异处理中的作用.
- 该研究提供了对具体效应的神经支的见解,将其与网络连接和半球参与联系起来.
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