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2010 Fiscal Year Final Research Report

Self-organization mechanisms of topology of local neural circuit

Research Project

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Project/Area Number 19500256
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Bioinformatics/Life informatics
Research InstitutionTohoku University

Principal Investigator

KATAYAMA Norihiro  東北大学, 大学院・情報科学研究科, 准教授 (20282030)

Co-Investigator(Kenkyū-buntansha) KARASHIMA Akihiro  東北大学, 大学院・情報科学研究科, 助教 (40374988)
NAKAO Mitsuyuki  東北大学, 大学院・情報科学研究科, 教授 (20172265)
Project Period (FY) 2007 – 2010
Keywords脳情報処理
Research Abstract

In this study, we investigated the dynamics and self-organization of cortical local neural network by electrophysiological experiments on acute brain slices, mathematical modeling and computer simulations of realistic neural network. It was found that autonomous change of functional neural connections occurred associated with metastable dynamics of ensemble neuronal activities in the local neural circuit. In addition, it is suggested that a certain degree of robustness of the distribution of efficacy of functional neuronal connections against the self-organization of the network.

  • Research Products

    (16 results)

All 2010 2009 2008 2007 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (11 results) Remarks (1 results)

  • [Journal Article] Multi-neuron Action Potentials Recorded with Tetrode are not Instantaneous Mixtures of Single Neuronal Action Potentials2009

    • Author(s)
      Yasushi Shiraishi, Norihiro Katayama, Tetsuya Takahashi, Akihiro Karashima and Mitsuyuki Nakao
    • Journal Title

      Proc 31st IEEE EMBS

      Pages: 4019-4022

    • Peer Reviewed
  • [Journal Article] 神経スパイクの相互相関解析を利用したシナプス結合強度のモデルベース推定2008

    • Author(s)
      菊池修, 片山統裕, 辛島彰洋, 中尾光之
    • Journal Title

      生体医工学

      Volume: 46巻 (6号) Pages: 667-674

    • Peer Reviewed
  • [Journal Article] 複数ニューロン記録用多重電極の設計支援を志向した3次元神経組織モデルの構築2008

    • Author(s)
      久保貴嗣, 片山統裕, 辛島彰洋, 中尾光之
    • Journal Title

      生体医工学

      Volume: 46巻 (6号) Pages: 675-683

    • Peer Reviewed
  • [Journal Article] The 3D position estimation of neurons in the hippocampus based on the multi-site multi-unit recordings with silicon tetrodes2008

    • Author(s)
      T. Kubo, N. Katayama, A. Karashima, M. Nakao
    • Journal Title

      Proc IEEE EMBS

      Volume: 2008巻 Pages: 5021-5024

    • Peer Reviewed
  • [Presentation] 多点細胞外活動電位を利用したニューロン位置推定法の計算機実験に基づく評価2010

    • Author(s)
      孫昊, 片山統裕, 白石泰士, 辛島彰洋, 中尾光之
    • Organizer
      電子情報通信学会MEとバイオサイバネティックス研究会
    • Place of Presentation
      仙台
    • Year and Date
      20101118-19
  • [Presentation] Analysis of spatiotemporal profile of extracellular action potential of a hippocampal pyramidal neuron : a computer simulation study2010

    • Author(s)
      H. Son, N. Katayama, A. Karashima, M. Nakao
    • Organizer
      5th Int Sympo Med, Bio-, Nano-Electronics
    • Place of Presentation
      Tohoku Univ, 仙台
    • Year and Date
      20100224-25
  • [Presentation] Wavelet analysis of spatio-temporal profile of extracellular action potential of multi-compartment model of a hippocampal pyramidal cell2010

    • Author(s)
      孫昊, 片山統裕, 白石泰士, 辛島彰洋, 中尾光之
    • Organizer
      第49回日本生体医工学会大会
    • Place of Presentation
      大阪
    • Year and Date
      20100125-27
  • [Presentation] Self-organization process of network structure in a STDP neural network model2009

    • Author(s)
      N. Katayama, S. Yamada, A. Karashima, M. Nakao
    • Organizer
      日本神経科学学会
    • Place of Presentation
      名古屋
    • Year and Date
      20090916-18
  • [Presentation] マウス視床皮質スライスの多点電位記録によるシナプス応答の解析2009

    • Author(s)
      荒井香, 片山統裕, 白石泰士, 辛島彰洋, 中尾光之
    • Organizer
      電子情報通信学会
    • Place of Presentation
      仙台
    • Year and Date
      2009-11-13
  • [Presentation] 急性海馬CA3スライス内神経回路の准安定なダイナミクス2009

    • Author(s)
      高所晃一, 片山統裕, 辛島彰洋, 中尾光之
    • Organizer
      第24回生体・生理工学シンポジウム, 計測自動制御学会
    • Place of Presentation
      仙台
    • Year and Date
      2009-09-25
  • [Presentation] A three-dimensional neural tissue model of hippocampal CA3 field for simulation of multiunit recording with multi-site electrodes2008

    • Author(s)
      T. Kubo, N. Katayama, A. Karashima, M. Nakao
    • Organizer
      Neurosci. Res.
    • Place of Presentation
      名古屋
    • Year and Date
      20080709-11
  • [Presentation] Balanced reorganization of hippocampal CA3 neural network in vitro2008

    • Author(s)
      O. Kikuchi, N. Katayama, A. Karashima, M. Nakao
    • Organizer
      Intl Sympo Bio-and Nano-Electronics
    • Place of Presentation
      仙台
    • Year and Date
      20080305-06
  • [Presentation] A three-dimensional model of hippocampal tissue for assessment of multisite electrode characteristics2008

    • Author(s)
      T. Kubo, N. Katayama, O. Kikuchi, A. Karashima, M. Nakao
    • Organizer
      Intl Sympo Bio-and Nano-Electronics
    • Place of Presentation
      仙台
    • Year and Date
      20080305-06
  • [Presentation] Modeling of extracellular multiple neuronal activities based on the multi-unit recording2007

    • Author(s)
      T. Kubo, N. Katayama, H. Mushiake, O. Kikuchi, A. Karashima, M. Nakao
    • Organizer
      Neurosci. Res.
    • Place of Presentation
      横浜
    • Year and Date
      2007-09-11
  • [Presentation] Activity-dependent organization of associative neuronal dynamics of the hippocampal CA3 network in vitro2007

    • Author(s)
      O. Kikuchi, N. Katayama, A. Karashima, M. Nakao
    • Organizer
      Neurosci. Res.
    • Place of Presentation
      横浜
    • Year and Date
      2007-09-10
  • [Remarks]

    • URL

      http://www.biomdl.ecei.tohoku.ac.jp/index-j.html

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Published: 2013-07-31  

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