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Development of a lexical decision task with kanji pseudohomophones: Toward the application for aphasia assessment Kosei Hashimoto 1,2 , Akira Uno 2 , Ami Sambai 3 1Department of Rehabilitation, JCHO Kumamoto General Hospital 2Graduate School of Comprehensive Human Sciences, University of Tsukuba 3Faculty of Education, Osaka Kyoiku University Keyword: 語彙性判断課題 , 同音擬似語 , 文字列レキシコン , 漢字 , lexical decision task , pseudohomophone , orthographic lexicon , kanji pp.321-331
Published Date 2018/12/15
DOI https://doi.org/10.11477/mf.6001200196
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 Lexical decision tasks require the participants to determine whether a given letter string is a real word or not. To perform a lexical decision task, it is inferred that participants refer to the orthographic lexicon which contains the visual forms of known words for verification of the given letter string. Pseudohomophones are considered useful for accurately assessing the orthographic lexicon. Therefore, we created a lexical decision task that includes kanji pseudohomophonic stimuli and asked the participants to perform lexical decision and reading aloud tasks using the same stimuli. The results from healthy adults indicated that pseudohomophonic effects were observed in both lexical decision and reading aloud tasks, which corresponded with previous English reports. These results suggested that our lexical decision task was useful for the assessment of the orthographic lexicon: thus, it is considered that an inhibitory feedback influenced the orthographic lexicon from phonological (and semantic) representations in visual word recognition for kanji pseudohomophonic stimuli.


Copyright © 2018, Japanese Association of Speech-Language-Hearing Therapists. All rights reserved.

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電子版ISSN 印刷版ISSN 1349-5828 日本言語聴覚士協会

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