定量的な光刺激による一次視覚野のα波の応答評価

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2018/07/01

タイトル(英語): Response of Alpha Wave in Visual Cortex with Quantitative Light Stimulus

著者名: 小林　由弥（東京大学工学系研究科），庭野　恭彰（東京大学工学系研究科），田中　敬（東京大学工学部），赤尾　旭彦（東京大学工学系研究科），小谷　潔（東京大学工学系研究科／東京大学先端科学技術研究センター／JSTさきがけ），神保　泰彦（東京大学工学系研究科）

著者名(英語): Yuya Kobayashi (School of Engineering, The University of Tokyo), Yasuaki Niwano (School of Engineering, The University of Tokyo), Satoshi Tanaka (Faculty of Engineering, The University of Tokyo), Akihiko Akao (School of Engineering, The University of Toky

キーワード: 脳波，α波，視覚野，光刺激，振動現象　　EEG，alpha waves，visual cortex，light stimulus，oscillatory phenomena

要約(英語): Electroencephalogram (EEG) is generated by collective activity of neural population. In those waves, low frequency waves, called alpha waves (8-12[Hz]), are often observed in visual cortex, and the relationship between such waves and cognitive functions have been studied by many researchers. However, the mechanism of the generation of alpha waves is not understood well. In this study, we build an experimental system that can present quantitative light stimuli, and record the response of alpha waves. As a result, we observed that the onset of the recovery of alpha waves power is delayed comparing to the end of the stimuli, and also confirmed that there is a difference between decay speed and recovery speed of the alpha waves. By comparing such results with mathematical models of alpha waves already proposed, we can understand which model conforms to real alpha waves well, and that will be helpful for understanding how alpha waves are generated, and how human visual cortex works.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.138 No.7 （2018）特集：平成29年電子・情報・システム部門大会

本誌掲載ページ: 822-827 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/138/7/138_822/_article/-char/ja/