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Neural mechanisms underlying the perception of transparent wide-field visual flow

Research Project

Project/Area Number 12680397
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Intelligent informatics
Research InstitutionTamagawa University

Principal Investigator

HIDA Eiki  Dep.of inf, &comm.Eng, Tamagawa University, Associate Professor, 工学部, 助教授 (60142006)

Co-Investigator(Kenkyū-buntansha) SAITO Hide-aki  Dep. of inf, &comm.Eng, Tamagawa University, Professor, 工学部, 教授 (30215553)
Project Period (FY) 2000 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥4,000,000 (Direct Cost: ¥4,000,000)
Fiscal Year 2001: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2000: ¥2,600,000 (Direct Cost: ¥2,600,000)
Keywordswide-field visual flow / bi-directional transparent motion / perception of moving / motion aftereffect / Spontaneous discharge / directionally-selective cell / monkey / MST area / 2方向重畳刺激 / MT野
Research Abstract

We investigated perceptional properties of motion aftereffect and its underlying neural mechanisms caused by bi-directional wide-field transparent motion. Prolonged presentation of bi-directional transparent motion induced unidirectional illusionary motion percept. After adapted by unidirectional wide-field visual flow, spontaneous discharge levels of directionally-selective(DS) cells in MST of macaque monkey were decreased by about 25% in comparison with those measured before presentation of adaptation stimulus. This result strongly suggests that perceived direction of illusionary motion induced by motion aftereffect is directly related to the distribution of spontaneous discharge levels among MSTDS cells. To reveal neural substrate for different directional percept in transparent motion stimulation and in motion aftereffect thereby, we analysed tuning properties of DS cells to bi-directional wide-field transparent flow in which constituent coherent flows moved with angular separation of 90 or 120 degrees. DS cells could be classified into two-subtypes, namely component type and integration type according to the tuning to bi-directional flow. Component cells tuned to component motion in transparent flow whereas integration cells tuned to integrated motion in bi-directional flow. Neural representation by component cells is thought to bring bi-directional percept for transparent flow and that by integration cells is thought to bring unidirectional percept in motion aftereffect.

Report

(3 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 樋田栄揮 他: "二方向重畳Visual flow認知の脳内機構"第23回ニホン神経科学大会第10回日本神経回路学会大会合同大会抄録集. 086 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 大野裕史 他: "MST野細胞集団の活動プロフィルによるVisual flowおよびその運動残効認知の情報表現"日本神経回路学会誌. Vol.9 No.7. 4-15 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 橋本直樹 他: "立体的視覚フローに対するマカクザルMST野細胞の反応"電子情報通信学会 信学技報. NC2001-13. 27-32 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 斎藤 秀昭 他: "Visual flowの認知特性と脳内神経情報表現"玉川大学学術研究所紀要. No.7. 85-97 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Hida, E., R. Shigehara, N. Hashimoto, H. Ohno, and H. Saito,: "Neural correlate for the perception of bi-directional bisual flow"bsi nn. P-086 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Ohno, H., N. Hashimoto, E. Hida, and H. Saito,: "Representation of the information for the perception of visual flow and its aftereffect by the activity-profile of a population of MST cells."The Brain & Neural Networks. Vol.9 No.7. 4-15 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Hashimoto N., H. Saito, E. Hida, and H. Ohno,: "Respose of macaque MST cells to three dimensional visual flow."Technical Report of IEICE. NC2001-13. 27-32 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Saito H. and E. Hida: "Perception of visual flow and its neural representation."Tamagawa University Research Review. No.7. 85-97 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 大野 裕史 他: "MST野細胞集団の活動プロフィルによるVisual flowおよびその運動残効認知の情報表現"日本神経回路学会誌. Vol9 No.7. 4-15 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 橋本 直樹 他: "立体的視覚フローに対するマカクザルMST野細胞の反応"電子情報通信学会 信学技報. NC2001-13. 27-32 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 斎藤 秀昭 他: "Visual flowの認知特性と脳内神経情報表現"玉川大学学術研究所紀要. NO.7. 85-97 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 樋田栄揮,重原隆一郎,橋本直樹,大野裕史,斎藤秀昭: "二方向重畳visual flow認知の脳内機構"第10回日本神経回路学会大会抄録集. 086

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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