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On the role of new-born neurons in the hippocampus : A computational study with associative memory models

Research Project

Project/Area Number 19500257
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Bioinformatics/Life informatics
Research InstitutionUniversity of Miyazaki

Principal Investigator

DATE Akira  University of Miyazaki, 工学部, 准教授 (60322707)

Co-Investigator(Kenkyū-buntansha) 倉田 耕治  琉球大学, 工学部, 教授 (40170071)
Co-Investigator(Renkei-kenkyūsha) KURATA Koji  琉球大学, 工学部, 教授 (40170071)
Project Period (FY) 2007 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2008: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2007: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords計算論的神経科学 / 数理モデル / 記憶 / ニューロインフォマティックス / 神経回路モデル / 連想記憶 / 新生ニューロン / 記憶容量 / 学習 / ニューラルネットワーク / 脳
Research Abstract

The area of hippocampus in the brain is involved in associative memory recall in which new neurons are born every day. To study the meaning of new-born neurons, we analyzed a property of associative memory networks in which a number of units are replaced. In our network, every time the network learns a new item or pattern, a number of units are erased and the same number of units are added. Our main findings are that the optimal number of replaced units which is relatively small and independent of the network size.

Report

(4 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (31 results)

All 2010 2009 2008 2007 Other

All Journal Article (15 results) (of which Peer Reviewed: 3 results) Presentation (12 results) Remarks (4 results)

  • [Journal Article] ベイズ推論における事後確率分布の構造について2010

    • Author(s)
      伊達章
    • Journal Title

      電子情報通信学会技術研究報告 109

      Pages: 285-290

    • NAID

      110008004314

    • Related Report
      2009 Annual Research Report
  • [Journal Article] ベイズ推論における事後確率分布の構造について2009

    • Author(s)
      伊達章
    • Journal Title

      電子情報通信学会技術研究報告 vol.109

      Pages: 285-290

    • NAID

      110008004314

    • Related Report
      2009 Final Research Report
  • [Journal Article] On the distribution of posterior probability in Bayesian inference with a large number of observations2009

    • Author(s)
      Akira Date
    • Journal Title

      Artificial Life and Robotics vol.13

      Pages: 517-521

    • Related Report
      2009 Final Research Report
  • [Journal Article] 神経振動子場における局在振動の位相同調に関する研究2009

    • Author(s)
      宮田龍太, 伊達章, 倉田耕治
    • Journal Title

      第19回インテリジェント・システム・シンポジウム(FAN 2009)

      Pages: 25-30

    • Related Report
      2009 Final Research Report
  • [Journal Article] 自己組織モデルのための神経場における局在振動の研究2009

    • Author(s)
      宮田龍太, 伊達章, 倉田耕治
    • Journal Title

      電子情報通信学会技術研究報告 vol.109

      Pages: 13-18

    • NAID

      110007333645

    • Related Report
      2009 Final Research Report
  • [Journal Article] 細胞新生する連想記憶モデルの統計力学的解析2009

    • Author(s)
      小松靖直, 青西亨, 倉田耕治
    • Journal Title

      日本物理学会講演概要集 vol.64

      Pages: 299-299

    • NAID

      110007123490

    • Related Report
      2009 Final Research Report
  • [Journal Article] 想起の成否が容易に判別できるホップフィールド2008連想記憶モデルの簡略化2009

    • Author(s)
      伊達章, 山本浩史
    • Journal Title

      電子情報通信学会技術研究報告 vol.108

      Pages: 99-404

    • Related Report
      2009 Final Research Report
  • [Journal Article] 細胞新生する連想記憶モデルの統計力学的解析2009

    • Author(s)
      小松靖直, 青西亨, 倉田耕治
    • Journal Title

      電子情報通信学会技術研究報告 vol.108

      Pages: 49-54

    • NAID

      110007123490

    • Related Report
      2009 Final Research Report
  • [Journal Article] On the distribution of posterior probability in Bayesian inference with a large number of observations2009

    • Author(s)
      Akira Date
    • Journal Title

      Artificial Life and Robotics 13

      Pages: 517-521

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 想起の成否が容易に判別できるHopfield2008連想記憶モデルの簡略化2009

    • Author(s)
      伊達 章
    • Journal Title

      電子情報通信学会技術研究報告 NC2008-171

      Pages: 399-404

    • NAID

      110007324931

    • Related Report
      2008 Annual Research Report
  • [Journal Article] A property of neural networks of associative memory models with replacing units2008

    • Author(s)
      kira Date, Koji Kurata
    • Journal Title

      Artificial Life and Robotics vol.12

      Pages: 291-294

    • Related Report
      2009 Final Research Report
  • [Journal Article] On the distribution of posterior probability in Bayesian inference with a large number of observations2008

    • Author(s)
      Akira Date
    • Journal Title

      Proceedings of the 13th International Symposium on Artificial Life and Robotics

    • Related Report
      2009 Final Research Report
  • [Journal Article] A property of neural networks of associative memory models with replacing units2008

    • Author(s)
      Akira Date
    • Journal Title

      Artificial Life and Robotics 12

      Pages: 291-294

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On the distribution of posterior probability in Bayesian inference with a large number of observations2008

    • Author(s)
      Akira Date
    • Journal Title

      Proceedings of the 13th International Symposium on Artificial Life and Robotics 13(CD-ROM)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A model of complex cell development by information separation2007

    • Author(s)
      Akira Date, Koji Kurata
    • Journal Title

      Systems and Computers in Japan vol.38

      Pages: 76-83

    • NAID

      110003225246

    • Related Report
      2009 Final Research Report
  • [Presentation] ベイズ推論における事後確率分布の構造について2010

    • Author(s)
      伊達章
    • Organizer
      電子情報通信学会ニューロコンピューティング研究会
    • Place of Presentation
      玉川大学工学部(東京都町田市)
    • Year and Date
      2010-03-10
    • Related Report
      2009 Final Research Report
  • [Presentation] ベイズ推論における事後確率分布の構造について2010

    • Author(s)
      伊達章
    • Organizer
      電子情報通信学会ニューロコンピューテイング研究会
    • Place of Presentation
      玉川大学
    • Year and Date
      2010-03-10
    • Related Report
      2009 Annual Research Report
  • [Presentation] 神経振動子場における局在振動の位相同調に関する研究2009

    • Author(s)
      宮田龍太, 伊達章, 倉田耕治
    • Organizer
      第19回インテリジェント・システム・シンポジウム(FAN 2009)
    • Place of Presentation
      会津大学(福島県会津若松市)
    • Year and Date
      2009-09-17
    • Related Report
      2009 Final Research Report
  • [Presentation] 自己組織モデルのための神経場における局在振動の研究2009

    • Author(s)
      宮田龍太, 伊達章, 倉田耕治
    • Organizer
      電子情報通信学会ニューロコンピューティング研究会
    • Place of Presentation
      沖縄科学技術研究基盤整備機構(沖縄県国頭郡)
    • Year and Date
      2009-05-25
    • Related Report
      2009 Final Research Report
  • [Presentation] 細胞新生する連想記憶モデルの統計力学的解析2009

    • Author(s)
      小松靖直, 青西亨, 倉田耕治
    • Organizer
      日本物理学会
    • Place of Presentation
      立教大学(東京都豊島区)
    • Year and Date
      2009-03-28
    • Related Report
      2009 Final Research Report
  • [Presentation] 想起の成否が容易に判別できるホップフィールド2008連想記憶モデルの簡略化2009

    • Author(s)
      伊達章, 山本浩史
    • Organizer
      電子情報通信学会ニューロコンピューティング研究会
    • Place of Presentation
      玉川大学工学部(東京都町田市)
    • Year and Date
      2009-03-13
    • Related Report
      2009 Final Research Report
  • [Presentation] 神経振動子場における複数の局在振動2009

    • Author(s)
      伊達章, 倉田耕治
    • Organizer
      リズム現象の研究会IV
    • Place of Presentation
      お茶の水女子大学
    • Year and Date
      2009-01-24
    • Related Report
      2009 Final Research Report 2008 Annual Research Report
  • [Presentation] 細胞新生する連想記憶モデルの統計力学的解析2009

    • Author(s)
      小松靖直, 青西亨, 倉田耕治
    • Organizer
      電子情報通信学会ニューロコンピューティング研究会
    • Place of Presentation
      北海道大学(札幌市)
    • Year and Date
      2009-01-19
    • Related Report
      2009 Final Research Report
  • [Presentation] 想起の成否が容易に判別できるHopfield2008連想記憶モデルの簡略化2009

    • Author(s)
      伊達 章
    • Organizer
      電子情報通信学会ニューロコンピューティング研究会
    • Place of Presentation
      玉川大学
    • Related Report
      2008 Annual Research Report
  • [Presentation] 脳とコンピュータ:記憶の書き込み、読み出し、整理の仕方2008

    • Author(s)
      伊達章
    • Organizer
      JSTサイエンスカフェみやざき
    • Place of Presentation
      宮日会館(宮崎市)
    • Year and Date
      2008-09-14
    • Related Report
      2009 Final Research Report
  • [Presentation] On the distribution of posterior probability in Bayesian inference with a large number of observations2008

    • Author(s)
      Akira Date
    • Organizer
      International Symposium on Artificial Life and Robotics
    • Place of Presentation
      ビーコンプラザ(大分市)
    • Year and Date
      2008-02-02
    • Related Report
      2009 Final Research Report
  • [Presentation] On the distribution of posterior probability in Bayesian inference with a large number of observations2008

    • Author(s)
      Akira Date
    • Organizer
      Artificial Life and Robotics (AROB 12th '07)
    • Place of Presentation
      大分県別府市
    • Year and Date
      2008-02-02
    • Related Report
      2007 Annual Research Report
  • [Remarks]

    • URL

      http://www.cs.miyazaki-u.ac.jp/~date/index-j.html

    • Related Report
      2009 Final Research Report
  • [Remarks]

    • URL

      http://www.cs.miyazaki-u.ac.jp/~date/index-j.html

    • Related Report
      2009 Annual Research Report
  • [Remarks]

    • URL

      http://www.cs.miyazaki-u.ac.jp/~date/index-j.html

    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://www.cs.miyazaki-u.ac.jp/~date/index-j.html

    • Related Report
      2007 Annual Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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