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Building a consciousness meter commonly applicable for various conscious states

Research Project

Project/Area Number 26870860
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Brain biometrics
Cognitive science
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Masafumi Oizumi  国立研究開発法人理化学研究所, 脳科学総合研究センター, 客員研究員 (30715371)

Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords意識 / 意識レベル / 情報理論 / 統合情報理論 / 情報幾何学
Outline of Final Research Achievements

We derived novel measures of integrated information from information theory and information geometry, which quantifies integration of information in neural networks. Our measures overcome several mathematical problems that previous measures have. Moreover, it is elucidated how integrated information is related to transfer entropy and Granger causality, which have been widely used in analysis of neural networks. This advances intuitive understanding of integrated information. We applied the proposed measure to human fMRI data and showed that integrated information decreased when people see meaningful visual stimuli compared with that when people see meaningless visual stimuli.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (12 results)

All 2016 2015 2014 Other

All Int'l Joint Research (1 results) Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Open Access: 3 results,  Acknowledgement Compliant: 2 results,  Peer Reviewed: 2 results) Presentation (8 results) (of which Int'l Joint Research: 7 results,  Invited: 6 results)

  • [Int'l Joint Research] Monash University(Australia)

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Unified Framework for Information Integration Based on Information Geometry2016

    • Author(s)
      Masafumi Oizumi, Naotsugu Tsuchiya, Shun-ichi Amari
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 113 Issue: 51 Pages: 14817-14822

    • DOI

      10.1073/pnas.1603583113

    • Related Report
      2016 Annual Research Report
    • Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Measuring Integrated Information from the Decoding Perspective2016

    • Author(s)
      Oizumi M, Amari S-i, Yanagawa T, Fujii N, Tsuchiya N
    • Journal Title

      PLoS Comput Biol

      Volume: 12 Issue: 1 Pages: e1004654-e1004654

    • DOI

      10.1371/journal.pcbi.1004654

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] From the Phenomenology to the Mechanisms of Consciousness: Integrated Information Theory 3.02014

    • Author(s)
      Masafumi Oizumi, Larissa Albantakis, Giulio Tononi
    • Journal Title

      PLoS Computational Biology

      Volume: 10 Issue: 5 Pages: e1003588-e1003588

    • DOI

      10.1371/journal.pcbi.1003588

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] How can we assess "Machine Consciousness"? ;From the perspective of Integrated Information Theory2016

    • Author(s)
      Masafumi Oizumi
    • Organizer
      13th Japanese-German Frontiers of Science Symposium
    • Place of Presentation
      Potsdam, German
    • Year and Date
      2016-10-09
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Measures of Consciousness From the Viewpoint of Information Geometry2016

    • Author(s)
      Masafumi Oizumi
    • Organizer
      FQXi’s 5th International Conference
    • Place of Presentation
      Banff, Canada
    • Year and Date
      2016-08-21
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A unified framework for quantifying information integration based on information geometry2016

    • Author(s)
      Masafumi Oizumi
    • Organizer
      The 39th Annual Meeting of the Japan Neuroscience Society Satellite Symposium
    • Place of Presentation
      Tokyo, Japan
    • Year and Date
      2016-07-25
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A unified framework for quantifying information integration based on information geometry2016

    • Author(s)
      Masafumi Oizumi, Naotsugu Tsuchiya, Shun-ichi Amari
    • Organizer
      The 39th Annual Meeting of the Japan Neuroscience Society
    • Place of Presentation
      Yokohama, Japan
    • Year and Date
      2016-07-20
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A unified framework for quantifying information integration based on information geometry2016

    • Author(s)
      Masafumi Oizumi
    • Organizer
      CNS 2016 Workshop on Methods of Information Theory in Computational Neuroscience
    • Place of Presentation
      Jeju, Korea
    • Year and Date
      2016-07-06
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A Unified Framework for Information Integration Based on Information Geometry2015

    • Author(s)
      Masafumi Oizumi
    • Organizer
      2nd Monash Brain Function Workshop
    • Place of Presentation
      Melbourne, Australia
    • Year and Date
      2015-12-14
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] The Integrated Information Theory of Consciousness; Theory and Practice2015

    • Author(s)
      Masafumi Oizumi
    • Organizer
      International Symposium on Neural mechanisms of brain functions that require awareness
    • Place of Presentation
      新潟大学(新潟県・新潟市)
    • Year and Date
      2015-07-25
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Integrated Information Theory of Consciousness2014

    • Author(s)
      Masafumi Oizumi, Giulio Tononi, Christof Koch, Naotsugu Tsuchiya, Albantakis Larissa
    • Organizer
      ASSC
    • Place of Presentation
      Brisbane, Australia
    • Year and Date
      2014-07-16 – 2014-07-19
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2018-03-22  

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