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2005 Fiscal Year Final Research Report Summary

Brain Mechanisms Subserving Perception of Rules/Principles

Research Project

Project/Area Number 13224032
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionTokyo Medical and Dental University

Principal Investigator

IRIKI Atsushi  Tokyo Medical and Dental University, Graduate School, Professor, 大学院医歯学総合研究科, 教授 (70184843)

Co-Investigator(Kenkyū-buntansha) TAOKA Miki  Tokyo Medical and Dental University, Graduate School, Associate Professor, 大学院医歯学総合研究科, 助教授 (80236174)
OJIMA Hisayuki  Tokyo Medical and Dental University, Graduate School, Assistant Professor, 大学院医歯学総合研究科, 講師 (00104539)
ISHIBASHI Hidetoshi  Tokyo Medical and Dental University, Graduate School, Assistant Professor, 大学院医歯学総合研究科, 講師 (60334439)
YOKOCHI Hiroko  Tokyo Medical and Dental University, Graduate School, Research Associate, 大学院医歯学総合研究科, 助手 (50345295)
HIHARA Sayaka  Tokyo Medical and Dental University, Graduate School, Research Associate, 大学院医歯学総合研究科, 助手 (70361706)
Project Period (FY) 2001 – 2005
KeywordsJapanese Monkeys / Neurophysiology / Brain Imaging / Motion Analyses / Tool-Use / Single Neuron Activities
Research Abstract

Humans can perceive a modal and symbolic informations such as Rules, Principles, Relationships etc., which could not be attributed to specific receptors which detect physical energy. This abilities should be acquired through continuous primates' evolutionary processes. Common patterns of brain information processing mechanisms among primates, including humans, could be assumed, and thus, we attempted to detect such precursors in the monkey brain.
During the course of human postnatal period, varieties of higher cognitive functions develop in parallel with linguistic functions, which include, purpose-means relationship of bodily actions, logical problem solving abilities, perception of rational relationships between self actions and their results, perception of relative logical structures of object manipulation acts, and so on. Higher cognitive abilities of inference and prediction related to bodily acts would comprise bases of these functions. We have been successful in recording neurona … More l activities from the cerebral cortex which are related to various tool-using acts in Japanese monkeys, that were previously believed never be able to use tools. During such tool-use learning processes, we were able to train monkeys with task which would represent precursors of above depicted higher cognitive functions, and attempted to uncover neural mechanisms of such an intelligence.
The paradigms included, 1) Representation of semantics of hand-mouth coordination acts in the parietal cortex, 2) Neural mechanisms to represent an intention for combined tool-using acts, 3) Acquisition of the precursors of "naming" by perception of semantics, 4) Induction of imitation behavior after training joint attention, 5) Representation of movements of body parts as elements constituting actions as a whole, 6) Understandings of the spatial structure based on bodily awareness, 7) Perception of relationship between self body and external space in the secondary somatosensory area, 8) Parietal representation of structure/segmentation of the motor acts. Less

  • Research Products

    (14 results)

All 2006 2004 2003 2002

All Journal Article (12 results) Book (2 results)

  • [Journal Article] Extension of corticocortical afferents into the anterior bank of the intraparietal sulcus by tool-use training in adult monkeys2006

    • Author(s)
      Hihara, S. et al.
    • Journal Title

      Neuropsychologia (in press)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Extension of corticocortical afferents into the anterior bank of the intraparietal sulcus by tool-use training in adult monkeys.2006

    • Author(s)
      Hihara, S., Notoya, T., Tanaka, M., Ichinose, S., Ojima, H., Obayashi, S., Fujii, N., Iriki, A.
    • Journal Title

      Neuropsychologia (in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Tools for the body (schema)2004

    • Author(s)
      Maravita, A. et al.
    • Journal Title

      Trends in Cognitive Neuroscince 8

      Pages: 79-86

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Monkey brain areas underlying remote-controlled operation2004

    • Author(s)
      Obayashi, S. et al.
    • Journal Title

      European Journal of Neuroscience 19

      Pages: 1397-1407

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Tools for the body (schema).2004

    • Author(s)
      Maravita, A., Iriki, A.
    • Journal Title

      Tr. Cogn. Sci. 8

      Pages: 79-86

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Monkey brain areas underlying remote-controlled operation.2004

    • Author(s)
      Obayashi, S., Suhara, T, Nagai, Y., Okauchi, T., Maeda, J., Iriki, A.
    • Journal Title

      Eur. J. Neurosci. 19

      Pages: 1397-1407

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Spontaneous vocal differentiation of coo-calls for tools and food in Japanese monkeys2003

    • Author(s)
      Hihara, S. et al.
    • Journal Title

      Neuroscience Research 45

      Pages: 383-389

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Inferior parietal somatosensory neurons coding face-hand coordination in japanese macaques2003

    • Author(s)
      Yokochi, H. et al.
    • Journal Title

      Somatosenroy and Motor Research 20

      Pages: 115-125

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Spontaneous vocal differentiation of coo-calls for tools and food in Japanese monkeys.2003

    • Author(s)
      Hihara, S., Yamada, H., Iriki, A., Okanoya, K.
    • Journal Title

      Neurosci. Res. 45

      Pages: 383-389

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Inferior parietal somatosensory neurons coding face-hand coordination in Japanese macaques.2003

    • Author(s)
      Yokochi, H., Tanaka, M., Kumashiro, M., Iriki, A.
    • Journal Title

      Somatsens. Motor Res. 20

      Pages: 115-125

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Bilateral activity and callosal connections in the somatosensory cortex2002

    • Author(s)
      M.Kumashiro, et al.
    • Journal Title

      Current Psychological Cognition 21

      Pages: 3-32

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Bidirectional communication between a Japanese monkey and a human through eye gaze and pointing.2002

    • Author(s)
      Kumashiro, M., Ishibashi, H., Itakura, S., Iriki, A.
    • Journal Title

      Curr. Psychol. Cogn. 21

      Pages: 3-32

    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] Homo faber 道具を使うサル2004

    • Author(s)
      入來 篤史
    • Total Pages
      219
    • Publisher
      医学書院
    • Description
      「研究成果報告書概要(和文)」より
  • [Book] Homo faber-Tool-Using Monkeys2004

    • Author(s)
      Iriki, A.
    • Total Pages
      219
    • Publisher
      Igaku-Shoin, Tokyo
    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2008-05-27  

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