The time course of orthographic and semantic activation in Chinese character recognition: evidence from anERP study
The time course of orthographic and semantic activation in Chinese character recognition: evidence from anERP study
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汉字识别中正字法和语义激活的时间进程：ERP 研究的证据
DOI：
10.1080/23273798.2019.1652762
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发表时间：
2019-08-08
影响因子：
2.3
通讯作者：
Yan, Nan
中科院分区：
文献类型：
--
作者：
Zhane, Hao;Su, I-Fan;Yan, Nan
摘要本研究采用事件相关电位（ERP）技术，通过图片-文字匹配任务，探讨汉字识别过程中正字法和语义激活的时间动态。ERP结果显示，正字法的影响发生早，持续时间长，而语义效应相对较晚。特别是，正字法的效果表现出较大的枕骨N170，较小的额叶P200，和较大的N400组件的字符共享正字法的信息与成对的图片。观察到的正字法效应可能反映了汉字从N170和P200的部首水平易化到N400的词汇水平竞争的加工过程。相比之下，语义效应只在N400处被发现。此外，在N400处发现了一个显著的正字法与语义的相互作用，反映了汉字识别中语义激活过程中正字法的相关性，这表明熟练的读者可以直接从正字法中获得汉字的意义。
ABSTRACT In this investigation, a picture-character matching task using the event-related potential (ERP) technique was conducted to identify the temporal dynamics of orthographic and semantic activation during Chinese character recognition. The ERP results revealed that the impact of orthography occurred early and was long-lasting, whereas the semantic effect was comparatively late. In particular, the orthographic effect exhibited a larger occipital N170, smaller frontal P200, and larger N400 component for characters sharing orthographic information with paired pictures. The observed orthographic effect may reflect the processing of characters shifting from radical-level facilitation at the N170 and P200 to lexical-level competition at the N400. In contrast, a semantic effect was only found at the N400. Additionally, a significant orthography by semantic interaction was found at the N400, reflecting the relevance of orthography during semantic activation in Chinese character recognition which suggested that character meaning could be directly accessed from orthography for skilled readers.