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前頭眼野からの滑動性眼球運動発現の神経機構

Research Project

Project/Area Number 20020009
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Biological Sciences
Research InstitutionTokyo Medical and Dental University

Principal Investigator

杉内 友理子  Tokyo Medical and Dental University, 大学院・医歯学総合研究科, 准教授 (30251523)

Project Period (FY) 2008 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,900,000)
Fiscal Year 2009: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 2008: ¥2,000,000 (Direct Cost: ¥2,000,000)
Keywords前頭眼野 / smooth pursuit / 前庭入力 / 橋核 / 前庭神経核 / smooth Pursuit
Research Abstract

前頭眼野近傍の領域から滑動性眼球運動を発現する出力経路を明らかにするため、この領域に順行性神経標識物質を注入し、その投射様式を解析した。その結果、カハル間質核(interstitial nucleus of Cajal, INC)、視蓋前域、Darkschewitsch核、小細胞性赤核、中脳網様体、橋被蓋網様核(nucleus reticularis tegmenti pontis, NRTP),橋核に同側優位の投射を、また前庭神経核、舌下神経前位核(nucl. prepositus hypoglossi, NPH)、延髄網様体に両側性の投射を認めた。橋核では、Kawanoにより解析された滑動性眼球運動関連領域であるMST領域が投射することで知られる背外側橋核への投射も認められたが、内側部(dorsomedial nucleus, paramedian nucleus)が主であった。前庭神経核への投射は、特に外側核腹側部(Brodal)に多かった。この弓状溝周囲領域から前庭神経核への投射は、前庭神経核に逆行性標識物質を注入後の皮質前庭神経核細胞の分布によっても裏付けられた。外直筋神経にWGA-HRPを注入し、transne uronalに標識された両側の前庭神経核ニューロンに、順行性に標識された皮質前庭神経核細胞の神経終末が結合している像が認められた。従って、FEFの滑動性眼球運動関連部位からの出力路を形成する可能性があるのは、(1)NRTP,橋核内側部を経て小脳に至る経路、(2)前庭神経核を介する経路(前庭動眼反射の経路に結合するもの、積分器に入力するもの)(3)積分器であるNPH,INCを介する経路が考えられた。(1)はKawanoらにより解析されたMST野からの背外側橋核,腹側労片葉,片葉を介する出力経路とは、明らかに異なる経路であると考えられた。

Report

(2 results)
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (17 results)

All 2010 2009 2008

All Journal Article (3 results) (of which Peer Reviewed: 2 results) Presentation (13 results) Book (1 results)

  • [Journal Article] 上丘における機能局在について2010

    • Author(s)
      杉内友理子, 高橋真有
    • Journal Title

      Equilibrium Research 69

      Pages: 58-63

    • NAID

      10026088717

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 前庭脊髄路2009

    • Author(s)
      杉内友理子
    • Journal Title

      Clinical Neuroscience 27

      Pages: 747-751

    • NAID

      10009387415

    • Related Report
      2009 Annual Research Report
  • [Journal Article] Neural circuits for triggering saccades in the brainstem2008

    • Author(s)
      Shinoda Y., Sugiuchi Y, Izawa Y., and Takahashi M.
    • Journal Title

      Progress in Brain Research 171

      Pages: 79-85

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] カハル間質核細胞の入出力機構2009

    • Author(s)
      杉内友理子, 伊澤佳子, 高橋真有, 篠田義一
    • Organizer
      第68回日本めまい平衡医学会総会
    • Place of Presentation
      徳島
    • Year and Date
      2009-11-25
    • Related Report
      2009 Annual Research Report
  • [Presentation] Properties of Input-output Organization of INC Neurons as a Counterpart of IBNs in the Horizontal Saccade System2009

    • Author(s)
      杉内友理子, 伊澤佳子, 高橋真有, 篠田義一
    • Organizer
      Neuroscience meeting
    • Place of Presentation
      名古屋
    • Year and Date
      2009-09-16
    • Related Report
      2009 Annual Research Report
  • [Presentation] Input-output organization of INC neurons in the pathway from the superior colliculus to trochlear motoneurons2009

    • Author(s)
      Sugiuchi Y. Izawa Y, Takahashi M. and Shinoda Y.
    • Organizer
      Eye Movements and Vision
    • Place of Presentation
      Oxford
    • Year and Date
      2009-03-31
    • Related Report
      2008 Annual Research Report
  • [Presentation] Morphological correlates for commissur al mirror-symmetric excitation and reciprocal inhibition in the superior colliculi for control of saccades2009

    • Author(s)
      Takahashi M., Sugiuchi Y. and Shinoda Y.
    • Organizer
      Eye Movements and Vision
    • Place of Presentation
      Oxford
    • Year and Date
      2009-03-31
    • Related Report
      2008 Annual Research Report
  • [Presentation] The interstitial nucleus of Cajal and Its functional roles in generation of vertical saccade and the vestibulo-ocular reflex2008

    • Author(s)
      Sugiuchi, Y. Izawa Y., Takahashi M., and Shinoda Y.
    • Organizer
      The 25th Barany Society Meeting
    • Place of Presentation
      Kyoto
    • Related Report
      2008 Annual Research Report
  • [Presentation] Neural networks that subserves vertical saccadic eye movements2008

    • Author(s)
      Izawa Y., Sugiuchi Y., and Shinoda Y
    • Organizer
      The 25th Barany Society Meeting
    • Place of Presentation
      Kyoto
    • Related Report
      2008 Annual Research Report
  • [Presentation] Functional roles of commissural Mirror-symmetric excitation and reciprocal inhibition between the superior colliculus for control of vertical saccades2008

    • Author(s)
      Takahashi M., Sugiuchi, and Shinoda Y.
    • Organizer
      The 25th Barany Society Meeting
    • Place of Presentation
      Kyoto
    • Related Report
      2008 Annual Research Report
  • [Presentation] Functional role of the interstitial nucleus of Cajal in vertical saccade system2008

    • Author(s)
      Sugiuchi, Y., Izawa Y., Takahashi M., and Shinoda Y.
    • Organizer
      Neuroscience 2008, Workshop
    • Place of Presentation
      Tokyo
    • Related Report
      2008 Annual Research Report
  • [Presentation] Excitatory and Inhibitory pathways from the superior colliculus to vertical ocular motoneurons2008

    • Author(s)
      Izawa Y, Sugiuchi, Y. and Shinoda Y.
    • Organizer
      Neuroscience 2008, Workshop
    • Place of Presentation
      Tokyo
    • Related Report
      2008 Annual Research Report
  • [Presentation] Functional role of commissural excitation and inhibition between the superior colliculus for control of saccadic eye movements2008

    • Author(s)
      Takahashi M., Sugiuchi, Y. and Shinoda Y.
    • Organizer
      Neuroscience 2008, Workshop
    • Place of Presentation
      Tokyo
    • Related Report
      2008 Annual Research Report
  • [Presentation] 前庭系による運動制御の神経機構-前庭脊髄路と前庭皮質投射について-2008

    • Author(s)
      杉内友理子
    • Organizer
      第23回日本大脳基底核研究会
    • Place of Presentation
      河口湖町
    • Related Report
      2008 Annual Research Report
  • [Presentation] カハル間質核細胞の垂直性サッケード生成における役割2008

    • Author(s)
      杉内友理子,伊澤佳子,高橋真有、篠田義一
    • Organizer
      第67回日本めまい平衡学会総会
    • Place of Presentation
      秋田
    • Related Report
      2008 Annual Research Report
  • [Presentation] 上丘から上斜筋運動ニューロンへの相反入力パターンの解析2008

    • Author(s)
      伊澤佳子,杉内友理子,篠田義一
    • Organizer
      第67回日本めまい平衡学会総会
    • Place of Presentation
      秋田
    • Related Report
      2008 Annual Research Report
  • [Book] 日常臨床に役立つめまいと平衡障害2009

    • Author(s)
      杉内友理子
    • Publisher
      金原出版
    • Related Report
      2009 Annual Research Report

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Published: 2008-04-01   Modified: 2018-03-28  

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