形态复杂文字处理中形式与意义的时间动态:韩语屈折动词的ERP研究

IF 1.2 3区 心理学 Q2 LINGUISTICS Journal of Neurolinguistics Pub Date : 2022-11-01 DOI:10.1016/j.jneuroling.2022.101098
Joonwoo Kim , Jinwon Kang , Jeahong Kim , Kichun Nam
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引用次数: 1

摘要

词干是动词屈折变化的核心组成部分,它包含了基本的语义和句法属性,在文字处理中起着核心作用。本研究通过事件相关电位(ERP)词汇决策实验,考察了韩语动词词干长度对词形复杂词视觉识别的影响,以揭示形式和意义在复杂词视觉识别中的作用。此外,为了确定亚词汇加工(即形态加工)和词汇语义加工的时间轨迹,我们还研究了全词频在形态效应中的潜在调节作用。行为学结果表明,相对于词干长度相同但词干长度较长的目标,词干长度较短的目标的词汇决策速度更快。全词频率与词干长度之间存在显著的交互作用,其中高频词的词干长度效应不显著。ERP数据揭示了必然的结果;频率效应早在N100就出现了,随后是N250、N400和P600分量的显著调制。茎长效应在潜伏期N250、N400和N400范围内得到证实。在N400分量中,词干长度效应只在中低词频水平上表现出来,在高频水平上不表现出来。综上所述,目前的数据为在扫描单词的整个形式后,在早期视觉单词处理中同时激活词形和词汇语义信息提供了证据。结果讨论了目前的模型的形态复杂的文字处理。
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Temporal dynamics of form and meaning in morphologically complex word processing: An ERP study on Korean inflected verbs

The word stem is distinguished as the core component in verb inflections that envelopes essential semantic and syntactic properties, playing a central role in word processing. In the present study, in order to find the role of form and meaning during the visual recognition of morphologically complex words, the effect of the stem length of inflected Korean verbs was examined in an event-related potential (ERP) lexical decision experiment. Additionally, a potential modulation of whole-word frequency in morphological effect was investigated in order to locate the temporal locus of sublexical (i.e., morphological) and lexico-semantic processing. Behavioral results showed that lexical decision times were faster for targets with shorter stem length compared to targets with identical word length but longer stem length. A significant interaction between the whole-word frequency and stem length was also found, in which stem length effect was not significant in words with high frequency. The ERP data revealed corollary results; the frequency effect emerged as early as N100, followed by significant modulations of N250, N400, and P600 components. The stem length effect was demonstrated in latency ranges N250, N400, and N400. In the N400 component, the interaction of two factors was revealed in which stem length effect shown only in the medium- and low-word frequency levels, but not in the high-frequency level. Taken together, the present data provide evidence for simultaneous activation of morphological and lexico-semantic information in early visual word processing after scanning the whole-form of a word. The results are discussed in terms of the current models of morphologically complex word processing.

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来源期刊
Journal of Neurolinguistics
Journal of Neurolinguistics 医学-神经科学
CiteScore
3.90
自引率
5.00%
发文量
49
审稿时长
17.2 weeks
期刊介绍: The Journal of Neurolinguistics is an international forum for the integration of the neurosciences and language sciences. JNL provides for rapid publication of novel, peer-reviewed research into the interaction between language, communication and brain processes. The focus is on rigorous studies of an empirical or theoretical nature and which make an original contribution to our knowledge about the involvement of the nervous system in communication and its breakdowns. Contributions from neurology, communication disorders, linguistics, neuropsychology and cognitive science in general are welcome. Published articles will typically address issues relating some aspect of language or speech function to its neurological substrates with clear theoretical import. Interdisciplinary work on any aspect of the biological foundations of language and its disorders resulting from brain damage is encouraged. Studies of normal subjects, with clear reference to brain functions, are appropriate. Group-studies on well defined samples and case studies with well documented lesion or nervous system dysfunction are acceptable. The journal is open to empirical reports and review articles. Special issues on aspects of the relation between language and the structure and function of the nervous system are also welcome.
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