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Biological implement of visual competitive processes using a primitive competition network

Research Project

Project/Area Number 15500199
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Bioinformatics/Life informatics
Research InstitutionKagoshima University

Principal Investigator

UCHIYAMA Hiroyuki  Kagoshima University, Faculty of Engineering, Professor, 工学部, 教授 (70223576)

Co-Investigator(Kenkyū-buntansha) OHNO Hiroshi  Kagoshima University, Faculty of Engineering, Research Associate, 工学部, 助手 (00363606)
AOKI Kenji  Kagoshima University, Computing and Communications Center, Research Associate, 学術情報基盤センター, 助手 (40359980)
Project Period (FY) 2003 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2004: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2003: ¥2,500,000 (Direct Cost: ¥2,500,000)
Keywordsattention / visual competition / primitive competition model / retinopetal system / isthmo-optic nucleus / visually-guided behavior / non-restrained / 採餌行動
Research Abstract

Purposes of this research project are 1)to clarify some functional and structural properties of the avian retinopetal system, and 2)to clarify how visual competitive processes may be implemented with the primitive competition model. Thus, the following multidisciplinary approaches had been made.
1)Retinal target cells of the isthmo-optic projection, IO target cells(IOTCs) have been labeled intracellularly with neurobiotin. Axonal courses and terminal distributions of the IOTCs have been revealed for the first time, and the results have been published in the Journal of Comparative Neurology.
2)Activity of the IO neurons were recorded in awake, head-unrestrained Japanese quails by means of achronic electrode assembly implanted stereotaxically into the ION. Simultaneously head movements were videotaped with a high-speed video camera (100 fps), and then analyzed activity profiles of the IO neurons with respect to head and eyelid movements. It was found that activity of the IO neurons were suppressed during head movements and elevated around ends of the movements.
3)Intervals between pecks were measured in control and ION-lesioned animals. Pecking cycles were significantly delayed by ION-lesion.
4)In order to clarify neural circuit for visual competition, neuroarchitecture of the ION was investigated by means of intracellular labeling of neurons in the ION.

Report

(3 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • Research Products

    (5 results)

All 2004

All Journal Article (5 results)

  • [Journal Article] Retinal target cells for centrifugal projection from the isthmo-optic nucleus2004

    • Author(s)
      Uchiyama, H.et al.
    • Journal Title

      Journal of Comparative Neurology 476

      Pages: 146-153

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] The avian centrifugal visual system and its possible contribution to focal attention2004

    • Author(s)
      Ohno, H., Yonezawa, S., Arimura, F., Uchiyama, H.
    • Journal Title

      Brain-Inspired IT I.International Collgress Series 1269

      Pages: 61-64

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Retinal target cells for centrifugal projection from the isthmo-optic nucleus2004

    • Author(s)
      Uchiyama, H. et al.
    • Journal Title

      Journal of Comparative Neurology 476

      Pages: 146-153

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] The avian centrifugal visual system and its possible contribution to focal Attention2004

    • Author(s)
      Ohno, H., Yonezawa, S., Arimura, R, Uchiyama, H.
    • Journal Title

      Brain-Inspired IT I.International Congress Series 1269

      Pages: 61-64

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] The avian centrifugal visual system and its possible contribution to focal attention2004

    • Author(s)
      Ohno, H., Yonezawa, S., Arimura, F., Uchiyama, H.
    • Journal Title

      Brain-Inspired IT I.International Congress Series 1269

      Pages: 61-64

    • Related Report
      2004 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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