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  1. システム情報系 (Faculty of Engineering, Information and Systems)
  2. 川崎 真弘 (Kawasaki Masahiro)
  1. コンテンツタイプ (Contents Type)
  2. 雑誌発表論文等 (Journal article, etc.)
  3. S~
  4. Scientific reports

Theta-alpha EEG phase distributions in the frontal area for dissociation of visual and auditory working memory

http://hdl.handle.net/2241/00145796
50a727b2-7b81-49ac-b4de-f4539eed38bc
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SR_7-42776.pdf SR_7-42776 (1.7 MB)
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item type Journal Article(1)
公開日 2017-04-11
タイトル
タイトル Theta-alpha EEG phase distributions in the frontal area for dissociation of visual and auditory working memory
言語
言語 eng
資源タイプ
タイプ journal article
著者 Akiyama, Masakazu

× Akiyama, Masakazu

WEKO 160080

Akiyama, Masakazu

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Tero, Atsushi

× Tero, Atsushi

WEKO 160081

Tero, Atsushi

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Kawasaki, Masahiro

× Kawasaki, Masahiro

WEKO 160082

Kawasaki, Masahiro

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Nishiura, Yasumasa

× Nishiura, Yasumasa

WEKO 160083

Nishiura, Yasumasa

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Yamaguchi, Yoko

× Yamaguchi, Yoko

WEKO 160084

Yamaguchi, Yoko

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著者別名 川崎, 真弘

× 川崎, 真弘

WEKO 204192
e-Rad 40513370
筑波大学研究者総覧 0000003383

川崎, 真弘

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抄録
内容記述 Working memory (WM) is known to be associated with synchronization of the theta and alpha bands observed in electroencephalograms (EEGs). Although frontal-posterior global theta synchronization appears in modality-specific WM, local theta synchronization in frontal regions has been found in modality-independent WM. How frontal theta oscillations separately synchronize with task-relevant sensory brain areas remains an open question. Here, we focused on theta-alpha phase relationships in frontal areas using EEG, and then verified their functional roles with mathematical models. EEG data showed that the relationship between theta (6 Hz) and alpha (12 Hz) phases in the frontal areas was about 1:2 during both auditory and visual WM, and that the phase distributions between auditory and visual WM were different. Next, we used the differences in phase distributions to construct FitzHugh-Nagumo type mathematical models. The results replicated the modality-specific branching by orthogonally of the trigonometric functions for theta and alpha oscillations. Furthermore, mathematical and experimental results were consistent with regards to the phase relationships and amplitudes observed in frontal and sensory areas. These results indicate the important role that different phase distributions of theta and alpha oscillations have in modality-specific dissociation in the brain.
書誌情報 Scientific reports

巻 7, p. 42776, 発行日 2017-03
ISSN
収録物識別子 2045-2322
PubMed番号
関連識別子
関連識別子 28266595
DOI
関連識別子
関連識別子 10.1038/srep42776
権利
権利情報 © The Author(s) 2017
権利
権利情報 This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
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出版者 Nature Publishing Group
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