A study on the emergent mechanism of neuronal circuits for memory formation by simultaneous fMRI and EEG

2008 Fiscal Year Final Research Report

• Project/Area Number: 18680027
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Cognitive science
• Research Institution: Kyoto University (2007-2008); Okayama University (2006)
• Principal Investigator: MIZUHARA Hiroaki Kyoto University, 大学院・情報学研究科, 講師 (30392137)
• Project Period (FY): 2006 – 2008
• Keywords: 神経科学 / 脳・神経 / 認知科学 / 計測工学 / 生物・生体工学 / 非侵襲脳活動計測 / 脳波 / MRI

Research Abstract

脳内の神経回路網は, 状況に応じて動的に形成される必要がある. しかしながら, 従来の脳機能イメージング手法では, この動的に形成される神経回路網を同定することが困難であった. そこで本研究では, 脳波と機能的磁気共鳴画像法を同時に計測することにより, 脳内で動的に創発する皮質ネットワークを同定する手法を構築した. さらに, 記憶化大中の脳波と機能的磁気共鳴画像法の同時計測を実施することにより, 記憶保持に関連して動的に生成される脳内のネットワークを同定した.

Research Products

• [Journal Article] Human cortical circuits for central executive function emerge by theta phase synchronization. (2007)
  • Author(s): Hiroaki Mizuhara, Yoko Yamaguchi
  • Journal Title: NeuroImage Vol. 36 Pages: 232-244
  • Peer Reviewed
• [Presentation] EEG theta-gamma coupling during explicit memory retention. (2008)
  • Author(s): Mizuhara, H., and Yamaguchi, Y.
  • Organizer: Human Brain Mapping, 14th Annual Meeting
  • Place of Presentation: Melbourne, Austraria
  • Year and Date: 20080000
• [Presentation] Theta EEG power enhancement for encoding novel scene at attentional blink period. (2007)
  • Author(s): Mizuhara H., and Yamaguchi Y
  • Organizer: Neuro2007, The 30th annual meeting of Japan Neuroscience Society
  • Place of Presentation: Yokohama.
  • Year and Date: 20070000
• [Presentation] Neuronal networks with theta and gamma oscillations for encoding novel events in attentional blink task. (2007)
  • Author(s): Mizuhara H., and Yamaguchi Y.
  • Organizer: Society for Neuroscience, 37th annual meeting
  • Place of Presentation: San Diego
  • Year and Date: 20070000
• [Remarks] 受賞 : Hiroaki Mizuhara, Yoko Yamaguchi, Human cortical circuits for central executive function emerge by theta phase synchronization, NeuroImage Section Editors Choice Award, (2007.6)