Gao Fei, Wang Jianqin, Wu Chenggang, Wang Meng-Yun, Zhang Juan, Yuan Zhen
Faculty of Arts and Humanities, University of Macau, Macao, China.
Centre for Cognitive and Brain Sciences, University of Macau, Macao, China.
Cogn Neurodyn. 2022 Apr;16(2):471-481. doi: 10.1007/s11571-021-09720-y. Epub 2021 Oct 9.
In previous word reading studies, lexicality has been used as a variable to examine the impacts of word form and meaning information on the many stages of word recognition process. Yet the neural dynamics associated with lexicality effect of various information processing for Chinese visual word recognition has not been well elucidated. In this study, Chinese native speakers were instructed to read Chinese disyllabic compound words, morphological legal (pseudo-words) and illegal non-words with their brain potentials recorded. Event-related potentials (ERP) results showed that N200 was related to Chinese orthographic processing, where three lexical conditions elicited comparable patterns. A semantic discrimination was found for N400 between pseudo-words/non-words and real words, which is in favor of the lexical view of the N400 effect. Further, a later ERP component P600 exhibited the difference between the non-words and pseudo-words, reflecting a re-analysis of word meaning or grammatical operation on Chinese morphological legality. Therefore, we argue that Chinese morphological information might have an independent representation (the P600 effect) in mental lexicon.
在以往的单词阅读研究中，词汇性被用作一个变量，以检验单词形式和意义信息对单词识别过程多个阶段的影响。然而，与汉语视觉单词识别中各种信息处理的词汇性效应相关的神经动力学尚未得到充分阐明。在本研究中，以汉语为母语的受试者被要求阅读汉语双音节复合词、形态合法的（假词）和非法的非词，并记录他们的脑电活动。事件相关电位（ERP）结果表明，N200与汉语正字法加工有关，三种词汇条件引发了可比的模式。在假词/非词和真词之间发现了N400的语义辨别，这支持了N400效应的词汇观点。此外，一个较晚的ERP成分P600显示了非词和假词之间的差异，反映了对词义的重新分析或对汉语形态合法性的语法操作。因此，我们认为汉语形态信息可能在心理词典中有独立的表征（P600效应）。
