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Print-specific N170 involves multiple subcomponents for Japanese Hiragana
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| Title: | Print-specific N170 involves multiple subcomponents for Japanese Hiragana |
| Authors: | Uno, Tomoki Browse this author | | Okumura, Yasuko Browse this author →KAKEN DB | | Kasai, Tetsuko Browse this author →KAKEN DB |
| Keywords: | Visual word processing | | Event-related potential | | N170 | | Attention |
| Issue Date: | 22-May-2017 |
| Publisher: | Elsevier |
| Journal Title: | Neuroscience letters |
| Volume: | 650 |
| Start Page: | 77 |
| End Page: | 81 |
| Publisher DOI: | 10.1016/j.neulet.2017.04.020 |
| PMID: | 28412533 |
| Abstract: | Print-specific N170 in event-related potentials is generally considered to reflect relatively automatic processing for letter strings, which is crucial for fluent reading. However, our previous studies demonstrated that print-specific N170 for transparent Japanese Hiragana script consists of at least two subcomponents under rapid stimulus presentation: an attention-related left-lateralized N170 and a bilateral N170 associated with more automatic orthographic processes (Okumura, Kasai & Murohashi, 2014, 2015). The present study aimed to confirm the latter component by controlling presentation frequency of letters and nonlinguistic visual controls (i.e., symbols), but found a quite different pattern of results; an enhanced occipito-temporal positivity for words (80-120 ms poststimulus) followed by the typical left-lateralized N170 and an enhanced parietal negativity for nonwords (150-200 ms). These results should provide further insights into the interaction processes between attention and early stages of print processing. |
| Rights: | © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/73709 |
| Appears in Collections: | 教育学院・教育学研究院 (Graduate School of Education / Faculty of Education) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 河西 哲子
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