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Neuroanatomical properties of 'time comparison circuit' in weakly electric fishes

Research Project

Project/Area Number 22570073
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Animal physiology/Animal behavior
Research InstitutionThe Graduate University for Advanced Studies

Principal Investigator

MATSUSHITA Atsuko  総合研究大学院大学, 先導科学研究科, 助教 (50450416)

Research Collaborator KAWASAKI Masashi  米国バージニア州立大学, 生物学部, 教授
Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2010: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords弱電気魚 / 神経伝達物質 / 時間情報 / 抑制性シナプス / 聴覚系 / 時間感覚 / 免疫組織化学 / 比較神経解剖学 / 国際研究者交流 米国バージニア / 神経会達物質 / Calyx of Held
Research Abstract

Weakly electric fish shows behavioral sensitivity to microsecond time difference between electrosensory signals from different body areas. The hypothetical time comparison circuit consists oftwo types of time-coding neurons and a small cell, to which the two time-coding neurons converged. Here I studied the type of synaptic transmission in the time-coding circuit in two species. I immunohistochemically found that one of the inputs of the time-coding neuron is inhibitory in Gymnarchus (mormyriform). However, in Brachyhypopomus (gymnotiform), conventional electron microscopy showed that both inputs are excitatory. This comparative analysis revealed that the topologies of time coding neurons are identical in all major groups of other weakly electric fishes so far studied. However, the modes of synaptic transmission to the small cell, a time comparator, are different between species.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (22 results)

All 2013 2012 2011 2010

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (14 results) Book (2 results)

  • [Journal Article] Cholesterol homeostasis in the ovaries of neonatallydiethylstilbestrol-treated mice2013

    • Author(s)
      Kakuta H, Matsushita A, Arikawa K, Iguchi T, Sato T
    • Journal Title

      Experimental and Clinical Endocrinology& Diabetes

      Volume: 121 Issue: 02 Pages: 94-101

    • DOI

      10.1055/s-0033-1333780

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Time disparity sensitive behavior and its neuralsubstrates of a pulse-type gymnotiform electricfish, Brachyhypopomus gauderio.2012

    • Author(s)
      Matsushita A, Pyon G, Kawasaki M
    • Journal Title

      Journal ofComparative Physiology A

      Volume: - Issue: 7 Pages: 583-599

    • DOI

      10.1007/s00359-012-0784-4

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Glass scales on the wing of the swordtail butterfly Graphium sarpedon act as thin film polarizing reflectors2012

    • Author(s)
      Stavenga DG, Matsushita A, Arikawa K, Leertouwer HL, Wilts BD
    • Journal Title

      Journal of Experimental Biology

      Volume: 215 Issue: 4 Pages: 657-662

    • DOI

      10.1242/jeb.066902

    • NAID

      120006576078

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Rhabdom evolution in butterflies: insights from the uniquely tiered and heterogeneous ommatidia of the Glacial Apollo butterfly, Parnassius glacialis2012

    • Author(s)
      Matsushita A, Awata H, Wakakuwa M, Takemura SY, Arikawa K
    • Journal Title

      Proceedings of the Royal Society B

      Volume: 279 Pages: 3482-3490

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Eyes with basic dorsal and specific ventral regions in the glacial Apollo, Parnassiusglacialis (Papilionidae)2010

    • Author(s)
      Awata H, Matsushita A, Wakakuwa M, Arikawa K
    • Journal Title

      The Journal of Experimental Biology

      Volume: 213 Pages: 4023-4029

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Pathway-specific utilization of synaptic zinc in the macaque ventral visual cortical areas2010

    • Author(s)
      Ichinohe N, Matsushita A, Ohta K, Rockland KS
    • Journal Title

      Cerebral Cortex

      Volume: 20 Pages: 2818-2831

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] The small cell-a convergent site of two types of time-lockedneurons in the midbrain of a weakly electricfish, Brachyhypopomus gauderio2012

    • Author(s)
      Matsushita A, Kawasaki M
    • Organizer
      日本比較生理生化学会第34回大会
    • Place of Presentation
      総合研究大学院大学,葉山
    • Related Report
      2012 Final Research Report
  • [Presentation] The small cell - a convergent site of two types of time-locked neurons in the midbrain of a weakly electric fish, Brachyhypopomus gauderio2012

    • Author(s)
      Matsushita A, Kawasaki M
    • Organizer
      日本比較生理生化学会第34回大会
    • Place of Presentation
      神奈川 葉山 総合研究大学院大学
    • Related Report
      2012 Annual Research Report
  • [Presentation] Spectral variety of photoreceptors in the compound eye of the Common Bluebottle butterfly, Graphium sarpedon2012

    • Author(s)
      Chen PJ, Awata H, Matsushita A, Yang EC, Arikawa K
    • Organizer
      日本比較生理生化学会第34回大会
    • Place of Presentation
      神奈川 葉山 総合研究大学院大学
    • Related Report
      2012 Annual Research Report
  • [Presentation] The eye of a “living fossil” butterfly, Parnassius glacialis (Papilionidae): a view into the evolution of rhabdom in insects2012

    • Author(s)
      Arikawa K, Matsushita A, Awata H, Wakakuwa M, Takemura SY
    • Organizer
      The 10th International Congress of Neuroethology
    • Place of Presentation
      University of Maryland, College Park, Maryland, USA
    • Related Report
      2012 Annual Research Report
  • [Presentation] Unique regionalization and distribution of duplicated opsins in the eye of the Common Blue Bottle, Graphium sarpedon2012

    • Author(s)
      Awata H, Matsushita A, Arikawa K
    • Organizer
      The 10th International Congress of Neuroethology
    • Place of Presentation
      University of Maryland, College Park, Maryland, USA
    • Related Report
      2012 Annual Research Report
  • [Presentation] 弱電気魚ブラチハイポポマスの中脳における時間情報処理経路2011

    • Author(s)
      松下敦子,川崎雅司
    • Organizer
      日本動物学会第82回大会
    • Place of Presentation
      旭川市大雪クリスタルホール,旭川
    • Related Report
      2012 Final Research Report
  • [Presentation] 弱電気魚ブラチハイポポマスの中脳における時間情報処理経路2011

    • Author(s)
      松下敦子 川崎雅司
    • Organizer
      日本動物学会第82回大会
    • Place of Presentation
      北海道 旭川市大雪クリスタルホール
    • Related Report
      2011 Annual Research Report
  • [Presentation] 弱電気魚の微小時間情報処理機構の比較解剖学2010

    • Author(s)
      松下敦子
    • Organizer
      第11回 日本比較三学会合同シンポジウム
    • Place of Presentation
      静岡グランシソプ(静岡)
    • Year and Date
      2010-11-20
    • Related Report
      2010 Annual Research Report
  • [Presentation] 弱電気魚の微小時間情報処理機構の比較解剖学2010

    • Author(s)
      松下敦子
    • Organizer
      第11回日本比較三学会合同シンポジウム
    • Place of Presentation
      静岡グランシップ,静岡 (招待講演)
    • Related Report
      2012 Final Research Report
  • [Presentation] Histological studies for time-coding pathway in pulse-type Gymnotiform fish2010

    • Author(s)
      Matsushita A, Kawasaki M
    • Organizer
      Brachyhypopomus gauderio. 9^<th> International Congress of Neuroethology
    • Place of Presentation
      Salamanca, Spain
    • Related Report
      2012 Final Research Report
  • [Presentation] Representation of accurate timing by time-locked neurons in the midbrain of a pulse type electric fish2010

    • Author(s)
      Kawasaki M, Matsushita A
    • Organizer
      Brachyhypopomus gauderio. 9^<th> International Congress of Neuroethology
    • Place of Presentation
      Salamanca, Spain
    • Related Report
      2012 Final Research Report
  • [Presentation] Histological studies for time-coding pathway in pulse-type Gymnotiform fish, Brachyhypopomus gauderio2010

    • Author(s)
      Matsushita A, Kawasaki M
    • Organizer
      9^<th> International Congress of Neuroethology
    • Place of Presentation
      サラマンカ(スペイン)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Representation of accurate timing by time-locked neurons in the midbrain of a pulsetype electric fish, Brachyhypopomus gauderio2010

    • Author(s)
      Kawasaki M, Matsushita A
    • Organizer
      9^<th> International Congress of Neuroethology
    • Place of Presentation
      サラマンカ(スペイン)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Duplication of long-wavelength opsins, ommatidial heterogeneity and regionalization ofthe compound eye of the Glacial Apollo, Parnassius glacialis (Papilionidae)2010

    • Author(s)
      Awata H, Matsushita A, Wakakuwa M, Arikawa K
    • Organizer
      9^<th> International Congress of Neuroethology
    • Place of Presentation
      サラマンカ(スペイン)
    • Related Report
      2010 Annual Research Report
  • [Book] いろいろな感覚の世界-超感覚のしくみを探る-2010

    • Author(s)
      松下敦子
    • Publisher
      電気を出す-弱電気魚の発電行動と電気感覚
    • Related Report
      2012 Final Research Report
  • [Book] いろいろな感覚の世界-超感覚のしくみを探る-(電気を出す-弱電気魚の発電行動と電気感覚)(江口・蟻川共編)2010

    • Author(s)
      松下敦子
    • Total Pages
      25
    • Publisher
      学会出版センター
    • Related Report
      2010 Annual Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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