脳磁図による時空間的な局在性の指標を用いた多感覚刺激に対する脳活動の評価

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: 2020/07/01

タイトル(英語): Estimation of Brain Response to Multimodal Stimuli by Index of Spatiotemporal Locality by Magnetoencephalography

著者名: 森　史奈（東京大学大学院 工学系研究科），菊池　恵吾（東京大学大学院 工学系研究科），杉野　正和（東京大学大学院 工学系研究科），小谷　潔（東京大学先端科学技術研究センター），神保　泰彦（東京大学大学院 工学系研究科）

著者名(英語): Fumina Mori (Graduate School of Engineering, The University of Tokyo), Keigo Kikuchi (Graduate School of Engineering, The University of Tokyo), Masato Sugino (Graduate School of Engineering, The University of Tokyo), Kiyoshi Kotani (Research Center for Advanced Science and Technology, The University of Tokyo), Yasuhiko Jimbo (Graduate School of Engineering, The University of Tokyo)

キーワード: 脳磁図，多感覚，P300m　　magnetoencephalography，multimodal，P300m

要約(英語): Brain-computer interface enables people who cannnot move their own body freely to manipulate machines and helps their communication and life. Recent BCI uses multimodal stimuli to increase bit rate of the system, so it is important to reveal when and which part of the brain part is activated to discriminate target stimuli. Though magnetoencephalography measures brain activity with high spatial and temporal resolution, there is a few index to estimate spatiotemporal locality of response. We propose an index to estimate spatiotemporal locality of response to multimodal stimuli of oddball paradigm from magnetoencephalography (MEG) signals. The validity of proposed index is demonstrated by simulation. Discrimination task was conducted with different ratio of target/non-target stimuli with visual and auditory location. Response to visual target stimuli were strong and made no spatiotemporal defference, so visual dominance was implied.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.140 No.7 （2020） 特集：2019年電子・情報・システム部門大会

本誌掲載ページ: 711-717 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/140/7/140_711/_article/-char/ja/