语篇理解中语义整合的神经机制及其影响因素

语义整合是把当前阅读中新出现的词语与之前的语境进行语义联结以形成连贯表征的过程。在语篇理解中, 很多理论都确定了整合这一过程的重要性, 语义整合是达成语篇连贯的一个关键步骤, 探究其神经机制及影响因素对理解语篇有重要意义。已有的ERP研究表明语篇理解中的语义整合是即时发生的; 已有的fMRI研究和神经震荡的分析提供了参与这一过程的具体脑区和神经网络的证据。其影响因素主要包括语篇内因素、非言语因素和个体差异。

The Neural Mechanism and Influential Factors of Semantic Unification in Discourse Comprehension

Semantic unification is a key process of discourse comprehension, which refers to the process in which readers integrate the meaning of a new word into its prior context. Most theories of discourse comprehension agree on the significance of semantic unification in discourse comprehension. So far, numerous ERP studies have shown that readers immediately relate an upcoming word to its prior discourse context. Studies using fMRI and the analysis of oscillation have revealed specific brain areas and neural networks that are related to semantic unification in discourse comprehension. Besides, there are many factors that affect semantic unification in discourse comprehension, which can be divided into three categories: inner-discourse factors, extra-language factors, and individual differences.