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Theoretical study on neural correlates of thoughts and inference

Research Project

Project/Area Number 12210001
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Biological Sciences
Research InstitutionHokkaido University

Principal Investigator

TSUDA Ichiro  Hokkaido University, Graduate School of Science, Division of Mathematics, Professor, 大学院理学研究科, 教授 (10207384)

Co-Investigator(Kenkyū-buntansha) NAMIKI Takao  Graduate School of Science, Division of Mathematics, Assistant, 大学院理学研究科, 助手 (40271712)
MATSUMOTO Kenji  Graduate School of Science, Division of Mathematics, Associate Professor, 大学院理学研究科, 助教授 (80183953)
IKEGAMI Takashi  The University of Tokyo, graduate school of Arts and Science, Professor, 大学院総合文化研究科, 教授 (10211715)
KAMPIS Geroge  Japan Advanced Institute of Science and Technology, Visiting Professor, 客員助教授
藤井 宏  京都産業大学, 工学部, 教授 (90065839)
Project Period (FY) 2000 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥17,000,000 (Direct Cost: ¥17,000,000)
Fiscal Year 2002: ¥8,000,000 (Direct Cost: ¥8,000,000)
Fiscal Year 2001: ¥9,000,000 (Direct Cost: ¥9,000,000)
KeywordsThoughts / Inferences / Chaos / Fractal / Learning experimen / Associative memories / episodic memories / エピソード記憶形成 / カントール集合 / カオス的遍歴 / 時系列の階層記憶 / カテゴリー形成 / 思考・推論の神経相関 / 思考推論過程 / 不動点型ニューラルヒット / カオス力学系 / 思考推論の神経相関 / 複雑系科学 / 推論過程 / 力学系 / カテゴリー / 三段論法 / 写像合成 / ニューラルネット
Research Abstract

In order to investigate thoughts and inference processes and their neural correlates, we first clarified the difference between thoughts and memories, which is shown in the following: Thoughts are context-free, while associative memories are context-dependent; thoughts can be viewed as finding of relations, computations, and going beyond the circumstances with contradictions, that is, a kind of abduction. We inferred that episodic memories are on the intermediate stage of temporal information processings between thoughts and simple memories.
Second, we made a model for representation of inferen of prooesses by dynamical systems. ************************ ***eed chaotic itinerancy between partially synchronized states, where chaotic itinerancy indicates a process of inference.
Third, we classified inferences, and studied how to conduct an experiment with monkey on a syllogism. We concluded that we should conduct the experiment on category, for the first step. In order to interpret the experimental data, we made a mathematical tool for its analysis.

Report

(4 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (31 results)

All 2002 2001 Other

All Journal Article (8 results) Book (6 results) Publications (17 results)

  • [Journal Article] Hermeneutic approach to the brain : Process versus device2002

    • Author(s)
      P.Erdi
    • Journal Title

      Theoria et Historia Scientiarum VI (2)

      Pages: 307-321

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Journal Article] Hermeneutic approach to the brain : Process versus device2002

    • Author(s)
      P.Erdi
    • Journal Title

      Theoria et Historia Scientiarum VI(2)

      Pages: 307-321

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Journal Article] Making sense of internal logic, In : The Sciences of Interface2001

    • Author(s)
      I.Tsuda
    • Journal Title

      Genista Verlag

      Pages: 131-135

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Journal Article] Cantor coding in the hippocampus2001

    • Author(s)
      I.Tsuda
    • Journal Title

      Japan Journal of Industrial and Applied Mathematics 18(2)

      Pages: 249-258

    • NAID

      10010625026

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Journal Article] Toward an interpretation of dynamic neural activity in terms of chaotic dynamical systems2001

    • Author(s)
      I.Tsuda
    • Journal Title

      Behavioral and Brain Sciences 24(5)

      Pages: 793-847

    • NAID

      120000961284

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Journal Article] Fractal encoding in a chaotic neural network2001

    • Author(s)
      J.K.Ryeu
    • Journal Title

      Physical Review E 64

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Journal Article] 'Making sense of internal logic', In : The Sciences of Interface2001

    • Author(s)
      I.Tsuda
    • Journal Title

      Genista Verlag

      Pages: 131-135

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Journal Article] Fractal encoding in a chaotic neural network2001

    • Author(s)
      J.K.Ryeu
    • Journal Title

      Physical Review E E, 64 046202

      Pages: 1-6

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Book] 複雑系脳理論-「動的脳観」による脳の理解2002

    • Author(s)
      津田一郎
    • Total Pages
      111
    • Publisher
      サイエンス社
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Book] ダイナミックな脳2002

    • Author(s)
      津田一郎
    • Total Pages
      178
    • Publisher
      岩波書店
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Book] Brain theory from complex systemsa viewpoint2002

    • Author(s)
      I.Tsuda
    • Total Pages
      111
    • Publisher
      Science-sha (in Japanese)
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Book] The dynamic brain2002

    • Author(s)
      I.Tsuda
    • Total Pages
      178
    • Publisher
      Iwanami publ. co. (in Japanese)
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Book] Complex Systems : Chaos and Beyond - A Constructive Approach with Applications in Life Sciences2001

    • Author(s)
      I.Tsuda
    • Total Pages
      273
    • Publisher
      Springer-Verlag Berlin
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Book] Complex Systems : Chaos and Beyond--A Constructive Approach with Applications in Life Sciences2001

    • Author(s)
      I.Tsuda
    • Total Pages
      273
    • Publisher
      Springer・Verlag Berlin
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] I.Tsuda: "Making sense of internal logic"The Sciences of Interface. 131-135 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] I.Tsuda: "Cantor coding in the hippocampus"Japan Journal of Industrial and Applied Mathematics. 18(2). 249-258 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] I.Tsuda: "Toward an interpretation of dynamic neural activity in terms of chaotic dynamical systems"Behavioral and Brain Sciences. 24(5). 793-847 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] J.K.Ryeu: "Fractal encoding in a chaotic neural network"Physical Review E. 64. 1-6 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] P.Erdi: "Hermeneutic approach to the brain : Process versus device"Theoria et Historia Scientiarum. VI(2). 307-321 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] 津田一郎: "複雑系脳理論-「動的脳観」による脳の理解"サイエンス社. 111 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] I.Tsuda: "Making sense of internal logic"The Sciences of Interface(eds.H.H.Diebner, T.Druckrey and P.Weibel, Genista Verlag, Tubingen). 131-135 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] I.Tsuda: "Cantor coding in the hippocampus"Japan Journal of Industrial and Applied Mathematics. 18(2). 249-258 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] I.Tsuda: "Toward an interpretation of dynamic neural activity in terms of chaotic dynamical systems"Behavioral and Brain Sciences. 24(5). 575-628 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] I.Tsuda: "Fractal encoding in a chaotic neural network"Physical Review E. 64. 1-6 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Namiki: "Function Dynamics"Japan J.Indust.Appl.Math.. 18. 405-423 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Namiki: "Asymptotic behavior of one-dimensional cellular automata traffic models"Proceedings of Cellular Automata (Yokohama National Univ.). Nov.15-16. 130-134 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 津田一郎: "複雑系脳理論"サイエンス社. 111 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] I.Tsuda: "Complex Systems : Chaos and Beyond-A Constructive Approach with Applications in Life Sciences"Springer-Verlag. 273 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] I.Tsuda: "Making sense of internal logic"In "Science of Interfaces". (印刷中). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] I.Tsuda: "Towards an interpretation of dynamic brain activity in terms of chaotic dynamical Systems"Behavioral and Brain Sciences. Vol.24,no.2(印刷中). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] K.Kaneko: "Complex Systems : Chaos and Beyond"Springer-Verlag, Berlin, Heidelberg. 273 (2001)

    • Related Report
      2000 Annual Research Report

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Published: 2001-04-01   Modified: 2018-03-28  

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