神経集団ネットワークの違いが光刺激に起因する事象関連脱同期に与える影響の評価

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: 2021/05/01

タイトル(英語): Dependence of Neuronal Network Structure on Event-Related Desynchronization Caused by Light Stimulation

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

著者名(英語): Masato Sugino (School of Engineering, The University of Tokyo), Fumina Mori (School of Engineering, The University of Tokyo), Kiyoshi Kotani (RCAST, The University of Tokyo), Yasuhiko Jimbo (School of Engineering, The University of Tokyo)

キーワード: 脳波，神経方位拡散密度画像，振動現象，アルファ波，核磁気共鳴画像法，視覚野　　EEG，NODDI，oscillatory phenomena，alpha wave，MRI，visual cortex

要約(英語): Previous experiments have shown that neural population structure in the cerebral cortex affects cognitive function. However, it is unclear how the activity of the neural population is involved between them. In this study, we compared the relationship between the structure and activity of neural populations in the primary visual cortex. Intracellular volume fraction obtained by NODDI analysis of diffusion-weighted MRI was used as an indicator of neural population structure. The temporal delay in change of alpha wave intensity on event-related desynchronization in response to light stimuli was also used as an indicator of neural population activity. Using the stochastic oscillation mathematical model, we simulated event-related desynchronization and measured delay in change of alpha wave intensity when the coupling probability is changed on the model. The results showed that delay in attenuation of alpha wave intensity was smaller and delay in recovery was greater in both cases measurement and simulation, given higher neuron density. In conclusion, it is clear that structural features of the neuronal population affect the collective activity and that such phenomenon can be explained by mathematical models.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.141 No.5 （2021） 特集：神経工学

本誌掲載ページ: 602-606 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/141/5/141_602/_article/-char/ja/