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Neural mechanisms of flexible decision making.

Research Project

Project/Area Number 20680022
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Neurophysiology and muscle physiology
Research InstitutionJuntendo University

Principal Investigator

UKA Takanori  Juntendo University, 医学部, 准教授 (50372933)

Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥24,700,000 (Direct Cost: ¥19,000,000、Indirect Cost: ¥5,700,000)
Fiscal Year 2010: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
Fiscal Year 2009: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2008: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Keywords運動視 / 立体視 / 大脳皮質 / 連合野 / 視覚 / 神経生理学
Research Abstract

How do we generate flexible decisions? In this study, we recorded neural activity while monkeys performed a task switching paradigm where they randomly switched between two discrimination tasks. We found that sensory neurons are specifically recruited for each task to realize flexible decisions. Our results may be useful not only for understanding the mechanisms underlying flexible decisions, but also for developing brain-machine interfaces that support flexible decisions.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (23 results)

All 2010 2009 2008

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (20 results)

  • [Journal Article] The spatial profile of macaque MT neurons is consistent with Gaussian sampling of logarithmically coordinated visual representation.2010

    • Author(s)
      Kumano H, Uka T
    • Journal Title

      J Neurophysiol 104

      Pages: 61-75

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] The spatial profile of macaque MT neurons is consistent with Gaussian sampling of logarithmically coordinated visual representation.2010

    • Author(s)
      Kumano H, Uka T.
    • Journal Title

      J Neurophysiol

      Volume: 104 Pages: 61-75

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dynamic readout of behaviorally relevant signals from area MT during task switching.2009

    • Author(s)
      Sasaki R, Uka T
    • Journal Title

      Neuron 62

      Pages: 147-157

    • Related Report
      2010 Final Research Report 2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] Quantification of direction-speed tuning and its relationship with pattern motion selectivity in macaque area MT.2010

    • Author(s)
      Kumano H, Uka T
    • Organizer
      The 33rd Annual Meeting of the Japan Neuroscience Society.
    • Place of Presentation
      Kobe.
    • Year and Date
      2010-11-03
    • Related Report
      2010 Final Research Report
  • [Presentation] Quantification of direction-speed tuning and its relationship with pattern motion selectivity in macaque area MT.2010

    • Author(s)
      Kumano H, Uka T.
    • Organizer
      第33回日本神経科学大会
    • Place of Presentation
      神戸
    • Year and Date
      2010-09-03
    • Related Report
      2010 Annual Research Report
  • [Presentation] Neural mechanisms of flexibility in perceptual decisions.2009

    • Author(s)
      Uka T
    • Organizer
      The 57th Annual Meeting of the Japanese Society for Clinical Eletrophysiology of Vision.
    • Place of Presentation
      Urayasu.
    • Year and Date
      2009-10-31
    • Related Report
      2010 Final Research Report
  • [Presentation] Neural mechanisms of flexibility in perceptual decisions.2009

    • Author(s)
      Uka T
    • Organizer
      第57回日本臨床視覚電気生理学会
    • Place of Presentation
      浦安
    • Year and Date
      2009-10-31
    • Related Report
      2009 Annual Research Report
  • [Presentation] Change of spatial resolution of direction discrimination : Comparison of MT neuronal and psychophysical performance.2009

    • Author(s)
      Kumano H, Uka T
    • Organizer
      The 39th Annual Meeting of the Society for Neuroscience
    • Place of Presentation
      Chicago.
    • Year and Date
      2009-10-20
    • Related Report
      2010 Final Research Report
  • [Presentation] Change of spatial resolution of direction discrimination : Comparison of MT neuronal and psychophysical performance.2009

    • Author(s)
      Kumano H, Uka T
    • Organizer
      39^<th> annual meeting of the Society for Neuroscience
    • Place of Presentation
      Chicago, USA
    • Year and Date
      2009-10-20
    • Related Report
      2009 Annual Research Report
  • [Presentation] Spatial resolution of direction discrimination : comparison of MT neuron and behavior.2009

    • Author(s)
      Kumano H, Uka T
    • Organizer
      The 32nd Annual Meeting of the Japan Neuroscience Society.
    • Place of Presentation
      Nagoya.
    • Year and Date
      2009-09-16
    • Related Report
      2010 Final Research Report
  • [Presentation] Spatial resolution of direction discrimination : comparison of MT neuron and behavior.2009

    • Author(s)
      Kumano H, Uka T
    • Organizer
      第32回日本神経科学大会
    • Place of Presentation
      名古屋
    • Year and Date
      2009-09-16
    • Related Report
      2009 Annual Research Report
  • [Presentation] A computational model of task switching using leaky integrators.2009

    • Author(s)
      Sasaki R, Uka T
    • Organizer
      The 36th International Congress of Physiological Sciences.
    • Place of Presentation
      Kyoto.
    • Year and Date
      2009-07-28
    • Related Report
      2010 Final Research Report
  • [Presentation] Modeling and testing the receptive field profile of macaque MT neurons.2009

    • Author(s)
      Kumano H, Uka T
    • Organizer
      The 36th International Congress of Physiological Sciences.
    • Place of Presentation
      Kyoto.
    • Year and Date
      2009-07-28
    • Related Report
      2010 Final Research Report
  • [Presentation] A computational model of task switching using leaky integrators.2009

    • Author(s)
      Sasaki R, Uka T
    • Organizer
      第36回国際生理学会
    • Place of Presentation
      京都
    • Year and Date
      2009-07-28
    • Related Report
      2009 Annual Research Report
  • [Presentation] Modeling and testing the receptive field profile of macaque MT neurons.2009

    • Author(s)
      Kumano H, Uka T
    • Organizer
      第36回国際生理学会
    • Place of Presentation
      京都
    • Year and Date
      2009-07-28
    • Related Report
      2009 Annual Research Report
  • [Presentation] A leaky integrator model can account for the time course of MT choice probability during task switching2008

    • Author(s)
      Sasaki R & Uka T
    • Organizer
      Society for Neuroscience, 38^<th> Annual Meeting
    • Place of Presentation
      Washington DC
    • Year and Date
      2008-11-19
    • Related Report
      2008 Annual Research Report
  • [Presentation] Fine spatial resolution of motion direction discrimination of macaque MT neurons in the presence of visual noise.2008

    • Author(s)
      Kumano H, Uka T
    • Organizer
      The 38th Annual Meeting of the Society for Neuroscience.
    • Place of Presentation
      Washington DC.
    • Year and Date
      2008-11-17
    • Related Report
      2010 Final Research Report
  • [Presentation] Fine spatial resolution of motion direction discrimination of macaque MT neurons in the presence of visual noise2008

    • Author(s)
      Kumano H & Uka T
    • Organizer
      Society for Neuroscience, 38^<th> Annual Meeting
    • Place of Presentation
      Washington DC
    • Year and Date
      2008-11-17
    • Related Report
      2008 Annual Research Report
  • [Presentation] Contraction of receptive field size of macaque MT neurons in the presence of visual noise.2008

    • Author(s)
      Kumano H, Uka T
    • Organizer
      The 31st Annual Meeting of the Japan Neuroscience Society.
    • Place of Presentation
      Tokyo.
    • Year and Date
      2008-07-10
    • Related Report
      2010 Final Research Report
  • [Presentation] Spatial profile of macaque MT neurons is consistent with Gaussian sampling of logarithmically coordinated visual representation.2008

    • Author(s)
      Uka T, Kumano H
    • Organizer
      The 31st Annual Meeting of the Japan Neuroscience Society.
    • Place of Presentation
      Tokyo.
    • Year and Date
      2008-07-10
    • Related Report
      2010 Final Research Report
  • [Presentation] Contraction of receptive field size of macaque MT neurons in the presence of visual noise2008

    • Author(s)
      Kumano H & Uka T
    • Organizer
      The 31^<st> Annual Meeting of the Japan Neuroscience Society
    • Place of Presentation
      Tokyo
    • Year and Date
      2008-07-10
    • Related Report
      2008 Annual Research Report
  • [Presentation] Spatial profile of macaque MT neurons is consistent with Gaussian sampling of logarithmically coordinated visual representation2008

    • Author(s)
      Uka T & Kumano H
    • Organizer
      The 31^<st> Annual Meeting of the Japan Neuroscience Society
    • Place of Presentation
      Tokyo
    • Year and Date
      2008-07-10
    • Related Report
      2008 Annual Research Report
  • [Presentation] A leaky integrator model can account for the time course of MT choice probability during task switching.2008

    • Author(s)
      Sasaki R, Uka T
    • Organizer
      The 38th Annual Meeting of the Society for Neuroscience.
    • Place of Presentation
      Washington DC.
    • Year and Date
      2008-01-19
    • Related Report
      2010 Final Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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