词汇线索和话语整合：对 N400 和 P600 成分的 ERP 研究

IF 3.2 2区心理学 Q1 BEHAVIORAL SCIENCES

Cortex Pub Date : 2024-07-01 DOI:10.1016/j.cortex.2024.06.009

Eva Klingvall, Fredrik Heinat

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引用次数: 0

摘要

在一项瑞典语句子阅读ERP研究中，我们调查了N400和P600成分的作用。通过在四种条件（语境引出/非引出和语境匹配程度）下操纵关键词语的词汇检索和话语整合的难易程度，我们从句子加工的角度探讨了这些成分。结果表明，N400 反映了词汇检索和对已存储概念知识的访问，而 P600 成分则反映了语用过程，如将单词融入话语语境或单词的信息结构状态。这些结果支持句子加工的单流模型，在单流模型中，词汇检索和整合并不像多流模型那样平行进行。

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Lexical cues and discourse integration: An ERP study of the N400 and P600 components

In a sentence reading ERP study in Swedish we investigated the roles of the N400 and P600 components. By manipulating ease of lexical retrieval and discourse integration of the critical words in four conditions (contextually primed/non-primed and degree of contextual fit), we explored these components from a sentence processing perspective. The results indicate that the N400 indexes lexical retrieval and access of stored conceptual knowledge, whereas the P600 component indexes pragmatic processes, such as integration of a word into the discourse context, or the information structural status of the word. The results support single-stream models of sentence processing where lexical retrieval and integration do not take place in parallel, as in multi-stream models.

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来源期刊

Cortex 医学-行为科学

CiteScore

7.00

自引率

5.60%

发文量

250

审稿时长

74 days

期刊介绍： CORTEX is an international journal devoted to the study of cognition and of the relationship between the nervous system and mental processes, particularly as these are reflected in the behaviour of patients with acquired brain lesions, normal volunteers, children with typical and atypical development, and in the activation of brain regions and systems as recorded by functional neuroimaging techniques. It was founded in 1964 by Ennio De Renzi.