ラット聴覚野と視覚野からの皮質脳波の同時計測

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): Simultaneous Mapping of Neural Activities in Auditory and Visual Cortex of Rat

著者名: 森　叶人（東京大学大学院情報理工学系研究科），白松(磯口)　知世（東京大学大学院情報理工学系研究科），石津　光太郎（東京大学定量生命科学研究所），高橋　宏知（東京大学大学院情報理工学系研究科）

著者名(英語): Kanato Mori (Graduate School of Information Science and Technology, The University of Tokyo), Tomoyo Isoguchi Shiramatsu (Graduate School of Information Science and Technology, The University of Tokyo), Kotaro Ishizu (Institute for Quantitave Bioscience,

キーワード: 皮質脳波，聴覚野，視覚野，ミスマッチ陰性電位，ラット　　electrocorticogram，auditory cortex，visual cortex，mismatch negativity，rat

要約(英語): In the mammalian cerebral cortex, each sensory cortex plays a central role in the information processing of each sensory modality, yet the cross-modal interactions between sensory cortices remains to be elucidated. Herein, we designed a surface electrode array with 32 recording sites and established a novel electrophysiological technique to record neural activities simultaneously from the auditory and visual cortices of anesthetized rats. We evaluated our mapping in two ways; first, the middle-latency potentials in the auditory evoked potentials and visual evoked potentials were localized in the auditory and visual cortex, respectively. Second, the microelectrode array successfully recorded auditory and visual mismatch negativity (aMMN and vMMN), which is one of the neural activities reported to reflect cross-modal interactions in previous human studies. In addition, we demonstrated that MMN distributed beyond the border between these sensory cortices, suggesting cross-modal interactions between these areas. Taken together, the present recording technique will contribute to elucidating cross-modality information processing in sensory cortices.

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: 614-619 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_614/_article/-char/ja/