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Neural circuit mechanisms of the processing of numbers and sequences

Research Project

Project/Area Number 21700366
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Neuroscience in general
Research InstitutionThe University of Tokyo

Principal Investigator

MORITA Kenji  東京大学, 大学院・医学系研究科, 助教 (60446531)

Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords計算論的神経科学 / 数 / 段階性 / 動作制御 / 大脳皮質 / 神経機構 / 数理モデル / 数の認識 / 脳機構
Research Abstract

I have studied neural circuit mechanisms of the processing of numbers such as the numerosity of sensory stimuli and the planning/execution of sequential actions through computational modeling, and have proposed specific models on the possibility that detailed properties of individual cortical pyramidal neurons, in particular, nonlinear input integration and cooperative plasticity induction on the dendritic branches, as well as short-term synaptic plasticity, significantly contribute to the processing of numbers and the planning/execution of sequential actions.

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (19 results)

All 2012 2011 2010 2009

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (14 results)

  • [Journal Article] Reinforcement learning: computing the temporal difference of values via distinct corticostriatal pathways2012

    • Author(s)
      Morita K
    • Journal Title

      Trends Neurosci

      Volume: 35 Issue: 8 Pages: 457-467

    • DOI

      10.1016/j.tins.2012.04.009

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Impact of gamma-oscillatory inhibition on the signal transmission of a cortical pyramidal neuron.2011

    • Author(s)
      Xiumin Li, Kenji Morita, Hugh P. C. Robinson, & Michael Small
    • Journal Title

      Cognitive Neurodynamics

      Volume: 5 Issue: 3 Pages: 241-251

    • DOI

      10.1007/s11571-011-9169-6

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Highly differentiated projection-specific cortical subnetworks2011

    • Author(s)
      Mieko Morishima
    • Journal Title

      Journal of Neuroscience

      Volume: 31 Issue: 28 Pages: 10380-1039150

    • DOI

      10.1523/jneurosci.0772-11.2011

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Possible dendritic contribution to unimodal numerosity tuning and Weber-Fechner law-dependent numerical cognition2010

    • Author(s)
      森田賢治
    • Journal Title

      Frontiers in Computational Neuroscience 3

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Possible dendritic contribution to unimodal numerosity tuning and Weber-Fechner law-dependent numerical cognition2009

    • Author(s)
      Kenji Morita
    • Journal Title

      Frontiers in Computational Neuroscience

      Volume: 3巻

    • DOI

      10.3389/neuro.10.012.2009

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Presentation] Frequency preference of a layer V pyramidal neuron in response to oscillatory inhibition at the apical tuft dendrites2010

    • Author(s)
      Xiumin Li、Kenji Morita、Hugh P. C. Robinson、Michael Small
    • Organizer
      Society for Neuroscience, Annual Meeting 2010
    • Place of Presentation
      San Diego Convention Center(San Diego, CA,アメリカ合衆国)
    • Year and Date
      2010-11-14
    • Related Report
      2011 Final Research Report
  • [Presentation] Frequency preference of a layer V pyramidal neuron in response to osci llatory inhibition at the apical tuft dendrites2010

    • Author(s)
      Xiumin Li, Kenji Morita, Hugh P.C.Robinson, Michael Small
    • Organizer
      Society for Neuroscience, Annual Meeting 2010
    • Place of Presentation
      San Diego Convention Center (San Diego, CA,アメリカ合衆国)
    • Year and Date
      2010-11-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] γ振動を伴う持続的神経活動が再帰入力によって維持される機構の探索2010

    • Author(s)
      森田賢治
    • Organizer
      第33回日本神経科学大会・第53回日本神経科学会大会・第20回日本神経回路学会大会(Neuro2010)
    • Place of Presentation
      神戸コンベンションセンター(兵庫県神戸市)
    • Year and Date
      2010-09-04
    • Related Report
      2011 Final Research Report
  • [Presentation] γ振動を伴う持続的神経活動が再帰入力によって維持される機構の探索(Exploring the composition of the recurrent neural activity accompanied with γ rhythm by injecting simulated complex conductance)2010

    • Author(s)
      森田賢治
    • Organizer
      第33回日本神経科学大会・第53回日本神経科学会大会・第20回日本神経回路学会大会(Neuro2010)
    • Place of Presentation
      神戸コンベンションセンター(兵庫県 神戸市)
    • Year and Date
      2010-09-04
    • Related Report
      2010 Annual Research Report
  • [Presentation] Spatial Noise and Cortical Functions : Potential Functional Roles of the Inhomogeneity across Dendritic Branches of Cortical Pyramidal Cells2010

    • Author(s)
      森田賢治
    • Organizer
      The 4th International Neural Microcircuitry Conference "Signal Processing Mechanisms of Cortical Neurons"
    • Place of Presentation
      カヌチャリゾート(沖縄県名護市)
    • Year and Date
      2010-06-26
    • Related Report
      2011 Final Research Report
  • [Presentation] Spatial Noise and Cortical Functions : Potential Functional Roles of the Inhomogeneity across Dendritic Branches of Cortical Pyramidal Cells2010

    • Author(s)
      森田賢治
    • Organizer
      The 4th International Neural Microcircuitry Conference "Signal Processing Mechanisms of Cortical Neurons"
    • Place of Presentation
      カヌチャリゾート(沖縄県 名護市)
    • Year and Date
      2010-06-26
    • Related Report
      2010 Annual Research Report
  • [Presentation] Spatial noise and cortical functions : Effects of the spatial variability of the inputs and the membrane properties over the dendritic tree2009

    • Author(s)
      森田賢治
    • Organizer
      The 39th annual meeting of the Society for Neuroscience
    • Place of Presentation
      McCormick Place(Chicago, IL 60616,アメリカ合衆国)
    • Year and Date
      2009-10-19
    • Related Report
      2011 Final Research Report
  • [Presentation] Spatial noise and cortical functions : Effects of the spatial variability of the inputs and the membrane properties over the dendritic tree2009

    • Author(s)
      森田賢治
    • Organizer
      The 39th annual meeting of the Society for Neuroscience
    • Place of Presentation
      McCormick Place, Chicago, IL 60616, USA
    • Year and Date
      2009-10-19
    • Related Report
      2009 Annual Research Report
  • [Presentation] 単一神経細胞内の空間的非一様性が入出力関係に与える影響2009

    • Author(s)
      森田賢治
    • Organizer
      第32回日本神経科学大会
    • Place of Presentation
      名古屋国際会議場(愛知県名古屋市)
    • Year and Date
      2009-09-18
    • Related Report
      2011 Final Research Report
  • [Presentation] 単一神経細胞内の空間的非一様性が入出力関係に与える影響2009

    • Author(s)
      森田賢治
    • Organizer
      第32回日本神経科学大会
    • Place of Presentation
      名古屋国際会議場(愛知県)
    • Year and Date
      2009-09-18
    • Related Report
      2009 Annual Research Report
  • [Presentation] Spatial noise and cortical functions : effects of the spatial variability of the inputs and the membrane properties over the dendritic tree2009

    • Author(s)
      森田賢治
    • Organizer
      第36回国際生理学会世界大会(IUPS2009)
    • Place of Presentation
      国立京都国際会館(京都府京都市)
    • Year and Date
      2009-07-31
    • Related Report
      2011 Final Research Report
  • [Presentation] Spatial noise and cortical functions : effects of the spatial variability of the inputs and the membrane properties over the dendritic tree2009

    • Author(s)
      森田賢治
    • Organizer
      第36回国際生理学会世界大会(IUPS2009)
    • Place of Presentation
      国立京都国際会館(京都府)
    • Year and Date
      2009-07-31
    • Related Report
      2009 Annual Research Report
  • [Presentation] Dendritic Contribution to the Weber's Law in the Number Sense2009

    • Author(s)
      森田賢治
    • Organizer
      Cellular Approaches to Neuronal Signal Processing
    • Place of Presentation
      京都大学百周年時計台記念館(京都府京都市)
    • Year and Date
      2009-07-23
    • Related Report
      2011 Final Research Report
  • [Presentation] Dendritic Contribution to the Weber's Law in the Number Sense2009

    • Author(s)
      森田賢治
    • Organizer
      Cellular Approaches to Neuronal Signal Processing
    • Place of Presentation
      京都大学百周年時計台記念館(京都府)
    • Year and Date
      2009-07-23
    • Related Report
      2009 Annual Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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