ISSN 1671-3710
CN 11-4766/R
主办：中国科学院心理研究所
出版：科学出版社

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汉字阅读中左侧额中回的子区域分化及其在脑网络中的关键节点作用

陈甜, 黄家萱, 王小娟, 杨剑峰   

  1. 陕西师范大学心理学院,
  • 收稿日期:2026-04-25 修回日期:2026-09-02 接受日期:2026-09-15

Possible subregional differentiation of the left middle frontal gyrus in Chinese character reading and the region’s role as a key node in brain networks

CHEN Tian, HUANG Jiaxuan, WANG Xiaojuan, YANG Jianfeng   

  1. , ,
  • Received:2026-04-25 Revised:2026-09-02 Accepted:2026-09-15

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摘要： 左侧额中回是语言认知神经科学研究识别汉字阅读特异激活的脑区，其确切功能一直是研究者争议的问题。近年来，大量研究表明，额中回在汉字阅读中的激活可能与工作记忆、执行控制加工等一般认知加工相关。本文系统综述了上述两方面的最新研究进展，提出左侧额中回参与汉字阅读的两种可能解释：一是该脑区可能存在功能分离的子区域：其后部主要参与词汇阅读相关的神经激活，其前部更多承载工作记忆、执行功能等一般认知加工任务。另一种可能是左侧额中回在一般认知控制网络与语言/阅读网络之间发挥着枢纽作用。未来研究需要从跨领域的研究视角，深入探究左侧额中回作为跨网络交互节点在阅读中的动态激活。

关键词: 左侧额中回, 神经网络, 工作记忆, 执行控制

Abstract: The left middle frontal gyrus has been identified in cognitive neuroscience of language as a region showing Chinese-reading-specific activation, yet its precise function remains debated. In recent years, accumulating evidence has suggested that activation of the middle frontal gyrus during Chinese reading may be related to general cognitive processes, such as working memory and executive control. This review systematically summarizes recent advances in these two lines of research and proposes two possible accounts of the involvement of the left middle frontal gyrus in Chinese reading. First, this region may contain functionally dissociable subregions: its posterior portion may be more involved in neural activation associated with lexical reading, whereas its anterior portion may primarily support general cognitive processes such as working memory and executive function. Second, the left middle frontal gyrus may act as a hub between general cognitive control networks and language/reading networks. Future research should adopt a cross-domain perspective to further investigate the dynamic activation of the left middle frontal gyrus as a node mediating cross-network interactions during reading.

Key words: left middle frontal gyrus, neural network, working memory, executive control