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Hemispheric asymmetry in color discrimination

Research Project

Project/Area Number 02670791
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Ophthalmology
Research InstitutionOita Medical University

Principal Investigator

NAKATSUKA Kazuo  Oita Medical University, Professor, 医学部, 教授 (20112378)

Co-Investigator(Kenkyū-buntansha) FURUSHIMA Masatoshi  Oita Medical University, Assistant, 医学部, 助手 (20238679)
後藤 正雄  大分医科大学, 医学部, 助手 (10170466)
Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1991: ¥200,000 (Direct Cost: ¥200,000)
Fiscal Year 1990: ¥800,000 (Direct Cost: ¥800,000)
KeywordsCerebral color blindness / Laterality differences / cerebral color area / Reaction time / 大脳半球 / 劣位半球 / 色認知 / 後天性色覚異常 / 優位半球
Research Abstract

We experienced that subjects pressed a key using the right or left hand in response to a 100msec duration LED color stimulus presented to the right or left visual field.
Ten right-handed subjects were used. All of them were healthy adults and had good visual acuity without glasses.
In Experiment I, subjects respond to both color (Red and Green) immdiately, after the stimulus. In Experiment II, the subjects's task was to press the baton as quickly as possible when they discriminated the color (Red or Green).
In Experiment I, reaction time (RT) was no differences in each combination of the visual field and the hand. In experiment II, RT in the combination of the left visual field and the left hand was the fastest and that of the right visual field and the right hand was the latest. These results indicated that a right hemisphere was superiority in discrimination to colors.

Report

(3 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (7 results)

All Other

All Publications (7 results)

  • [Publications] 中塚 和夫,古嶋 正俊,今泉 雅資,小野 憲爾: "色弁別反応時間測定" 日本眼科学会雑誌. 95. 341- (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 中塚 和夫,古嶋 正俊,今泉 雅資,小野 憲爾: "色弁別反応時間における右と左" 神経心理学. 7. 282- (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Kazuo,Nakatsuka: "Reaction time to color tasks of hemifield presentation" J Jpn Ophthalmol Soc. 95. 341 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Kazuo,Nakatsuka: "Cerebral asymmetry in reaction time of color discrimination" Jap J Neuropsychology. 7. 282 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 中塚 和夫,古嶋 正俊,今泉 雅資,小野 憲爾: "色弁別反応時間測定" 日本眼科学会雑誌. 95. 341 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 中塚 和夫,古嶋 正俊,今泉 雅資,小野 憲爾: "色弁別反応時間における右と左" 神経心理学. 7. 282 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 中塚 和夫・他: "色弁別反応時間測定" 第95回日本眼科学会(平成3年5月16ー19日,於京都)にて発表. 95. (1991)

    • Related Report
      1990 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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