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Involvement of the ventral premotor cortex in adaptive reaching movements following dynamic changes of motor frame of reference

Research Project

Project/Area Number 17500269
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Neurophysiology and muscle physiology
Research InstitutionHirosaki University

Principal Investigator

KURATA Kiyoshi  Hirosaki University, School of Medicine, Professor, 医学部, 教授 (30170070)

Project Period (FY) 2005 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2006: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2005: ¥2,300,000 (Direct Cost: ¥2,300,000)
Keywordsreaching / adaptation / neuronal activity / cerebral cortex / premotor cortex / reference frame / 視覚座標系 / 運動座標系 / 座標変換 / 最適運動 / 利得制御 / 視覚運動変換 / 運動学習
Research Abstract

In reaching, a spatial visuomotor transformation should occur in our brain. We can make the transformation not only when the relationship between visual and motor coordinates is default, but also when a gain for the relationship is changed, for example, in a microsurgery. We trained monkeys to make reaching movements when visuospatially identical targets were presented on a computer display by aligning a cursor that indicated their hand position, while the gain was systematically changed. We recorded and analyzed movement-related neuronal activity in the ventral premotor cortex (PMv) and the primary motor cortex (MI) during reaction time. It was revealed that a majority of the MI neurons and a part of the PMv neurons showed activity changes depending on executed movement direction, amplitude, and velocity, whereas a number of the PMv neurons exhibited activity consistent to the visual location of the targets, but not to motor parameters such as amplitude and velocity. Furthermore, introcortical microstimulation in the PMv evoked changes in direction and amplitude (gain) of reaching movements. The results indicate that the PMv contributes to gain control of reaching during visuomotor transformation.

Report

(3 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • Research Products

    (11 results)

All 2007 2006 2005

All Journal Article (11 results)

  • [Journal Article] 大脳小脳連関2007

    • Author(s)
      蔵田 潔
    • Journal Title

      Brain Medical 19

      Pages: 47-52

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Cerebrocerebellar linkage.2007

    • Author(s)
      Kiyoshi Kurata
    • Journal Title

      Brain Medical 19

      Pages: 47-52

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Gain control of visuomotor transformation in the ventral premotor cortex of monkeys.2006

    • Author(s)
      Kiyoshi Kurata
    • Journal Title

      Abstr. Jpn. Neurosci. Soc. 29(CD-ROM)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Gain Control of Visuomotor Transformation in the Ventral Premotor Cortex of Monkeys.2006

    • Author(s)
      Kiyoshi Kurata
    • Journal Title

      Abstr.Jpn.Neurosci.Soc. 29

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Activity properties and location of neurons in the motor thalamus that project to the cortical motor areas in monkeys.2005

    • Author(s)
      Kiyoshi Kurata
    • Journal Title

      J. Neurophysiol. 94

      Pages: 550-566

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Activity properties and location of neurons in the motor thalamus that project to the cortical motor areas in monkeys.2005

    • Author(s)
      Kiyoshi Kurata
    • Journal Title

      Abstr. Soc. Neurosci. 35(CD-ROM)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Activity properties and location of neurons in the motor thalamus that project to the cortical motor areas in monkeys.2005

    • Author(s)
      Kiyoshi Kurata
    • Journal Title

      J.Neurophysiol 94

      Pages: 550-566

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Activity properties and location of neurons in the motor thalamus that project to the cortical motor areas in monkeys.2005

    • Author(s)
      Kiyoshi Kurata
    • Journal Title

      Abstr.Soc.Neurosci. 35

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Activity properties and location of neurons in the motor thalamus that project to the cortical motor areas in monkeys.2005

    • Author(s)
      Kurata, K.
    • Journal Title

      J.Neurophysiol. 94

      Pages: 550-566

    • Related Report
      2005 Annual Research Report
  • [Journal Article] The relationship between salivary biomarkers and state-trait anxiety inventory score under mental arithmetic stress : a pilot study.2005

    • Author(s)
      Noto Y., Sato T., Kudo M., Kurata, K., Hirota K.
    • Journal Title

      Anesth.Anal. 101

      Pages: 1873-1876

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 運動制御の神経機構とその障害2005

    • Author(s)
      蔵田 潔
    • Journal Title

      理学療法 22

      Pages: 960-965

    • NAID

      10016683767

    • Related Report
      2005 Annual Research Report

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Published: 2005-04-01   Modified: 2016-04-21  

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