Joonwoo Kim , Jinwon Kang , Jeahong Kim , Kichun Nam
{"title":"Temporal dynamics of form and meaning in morphologically complex word processing: An ERP study on Korean inflected verbs","authors":"Joonwoo Kim , Jinwon Kang , Jeahong Kim , Kichun Nam","doi":"10.1016/j.jneuroling.2022.101098","DOIUrl":null,"url":null,"abstract":"<div><p><span>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 </span>N100<span>, 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.</span></p></div>","PeriodicalId":50118,"journal":{"name":"Journal of Neurolinguistics","volume":null,"pages":null},"PeriodicalIF":1.2000,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Neurolinguistics","FirstCategoryId":"102","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0911604422000422","RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"LINGUISTICS","Score":null,"Total":0}
引用次数: 1
Abstract
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.
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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