Research concerning human frontal EEG reflecting decision-making

• Project/Area Number: 19700480
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Physical education
• Research Institution: The University of Tokyo
• Principal Investigator: YAMANAKA Kentaro The University of Tokyo, 大学院・教育学研究科, 助教 (90359662)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,600,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥300,000); Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2007: ¥2,300,000 (Direct Cost: ¥2,300,000)
• Keywords: 教育生理学 / 神経科学 / 生理学 / 脳・神経 / 認知科学 / 実験系心理学

Research Abstract

本研究は、準備していた行動をこらえる・我慢する、という、ヒトが社会生活を円滑に行う上で重要な意志決定機能を反映する前頭皮質活動を、おもにGo/NoGo課題遂行中に記録した脳波から同定することを試みた。その際に、従来から行われている事象をトリガとした多数試行の加算平均波形(事象関連電位)だけでなく、単一試行脳波におけるパワーと位相のダイナミクスを詳細に検討した。その結果、NoGo試行における前頭皮質において、θ帯域の脳波には試行間で位相の一致したパワーの増大が、α帯域の脳波には背景振動の位相の急激な変化が、それぞれ確認された。NoGo試行の出現確率を操作して、「NoGoの意志決定」を行う確率を変化させると、α帯域の脳波の位相の変化のみが影響を受けることから、NoGoの意志決定は、α帯域の位相の急激な変化に反映されていることが示唆された。

Research Products

• [Journal Article] Single-trial EEG power and phase dynamics associated with voluntary inhibition (2009)
  • Author(s): Yamanaka K. Yamamoto Y.
  • Journal Title: Journal of Cognitive Neuroscience (印刷中)
  • Peer Reviewed
• [Journal Article] Extracting a Stimulus-unlocked Component from EEG during NoGo Trials of Go/NoGo Task (2008)
  • Author(s): Takeda Y. Yamanaka K. Yamamoto Y.
  • Journal Title: NeuroImage 41(3) Pages: 777-788
  • Peer Reviewed
• [Journal Article] Temporal decomposition of EEG during a simple reaction time task into stimulus and response-locked components (2008)
  • Author(s): Takeda Y. Yamanaka K. Nozaki D. Yamamoto Y.
  • Journal Title: NeuroImage 39(2) Pages: 742-754
  • Peer Reviewed
• [Journal Article] Extracting a Stimulus-unlocked Component from EEG during NoGo Trials of Go/NoGo Task (2008)
  • Author(s): Takeda Y. Yamanaka K. Noza ki D. Yamamoto Y.
  • Journal Title: Neurolmage 41(3) Pages: 777-788
  • Peer Reviewed
• [Journal Article] Temporal decomposition of EEG during a simple reaction time task into stimulus-and response-locked components. (2008)
  • Author(s): Takeda Y. Yamanaka K. Yamamoto Y.
  • Journal Title: NeuroImage Vol.39(2) Pages: 742-754
  • Peer Reviewed
• [Journal Article] Extracting a Stimulus-unlocked Component from EEG during NoGo Trials of Go/NoGo Task.
  • Author(s): Takeda Y. Yamanaka K. Nozaki D. Yamamoto Y.
  • Journal Title: NeuroImage (印刷中)(掲載確定)
  • Peer Reviewed
• [Presentation] Manipulation of synchronous neural oscillations and cognitive processes by transcranial magnetic stimulation (2009)
  • Author(s): Kitajo K. Miyota R. Shimono M. Yamanaka K. Yamaguchi Y.
  • Organizer: Dynamic Brain Forum
  • Place of Presentation: Atami, Shizuoka, Japan
  • Year and Date: 2009-03-03
• [Presentation] 刺激に同期及び非同期した脳波成分の抽出手法の一般化 (2009)
  • Author(s): 武田祐輔, 佐藤雅昭, 山中健太郎, 野崎大地, 山本義春
  • Organizer: ニューロコンピューティング研究会
  • Place of Presentation: 玉川大学,町田市(東京都)
• [Presentation] 刺激に同期及び非同期した脳波成分の抽出手法の一般化 (2009)
  • Author(s): 武田祐輔, 佐藤雅昭, 山中健太郎, 野崎大地, 山本義春
  • Organizer: ニューロコンピューティング研究会
  • Place of Presentation: 東京都町田市
• [Presentation] Lateralized power and phase dynamics in single-trial EEG related to the motor response (2008)
  • Author(s): Yamanaka K. Yamamoto Y.
  • Organizer: Society for Neuroscience 38th Annual Meeting
  • Place of Presentation: Washington DC, USA
• [Presentation] NoGo-specific shortening of dephasing time in midline-frontal alpha-band ongoing EEG oscillation (2007)
  • Author(s): Yamanaka K. Yamamoto Y.
  • Organizer: Society for Neuroscience 37th Annual Meeting
  • Place of Presentation: San Diego, California, USA
• [Presentation] Extraction of covert response-locked EEG component in NoGo trials of Go/NoGo tasks (2007)
  • Author(s): Takeda Y. Yamanaka K. Nozaki D. Yamamoto Y.
  • Organizer: Society for Neuroscience 37th Annual Meeting
  • Place of Presentation: San Diego, California, USA
• [Presentation] Context-dependent modulation of low beta-band EEG activity during continuous Stroop task (2007)
  • Author(s): Iizuka T. Yamanaka K. Yamamoto Y.
  • Organizer: Society for Neuroscience 37th Annual Meeting
  • Place of Presentation: San Diego, California, USA
• [Presentation] NoGo-specific shortening of dephasing time in midline-frontal alpha-band ongoing EEG oscillation. (2007)
  • Author(s): Yamanaka K. Yamamoto Y.
  • Organizer: Society for Neuroscience 37th Annual Meeting
  • Place of Presentation: San Diego, USA
• [Presentation] Extraction of covert response-locked EEG component in NoGo trials of Go/Nogo tasks. (2007)
  • Author(s): Takeda Y. Yamanaka K. Nozaki D. Yamamoto Y.
  • Organizer: Society for Neuroscience 37th Annual Meeting
  • Place of Presentation: San Diego, USA
• [Presentation] Context-dependent modulation of low beta-band EEG activity during continuous Stroop task. (2007)
  • Author(s): Iizuka T. Yamanaka K. Yamamoto Y.
  • Organizer: Society for Neuroscience 37th Annual Meeting
  • Place of Presentation: San Diego, USA