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Is a color processed with a right hemispheric dominance?

Research Project

Project/Area Number 15500136
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Sensitivity informatics/Soft computing
Research InstitutionOsaka University

Principal Investigator

SASAKI Hitoshi  Osaka University, Graduate School of Medicine, Assistant Professor, 医学系研究科, 助手 (40104236)

Co-Investigator(Kenkyū-buntansha) FUKUDA Yutaka  Osaka University, Graduate School of Medicine, Professor, 医学系研究科, 教授 (90028598)
OKITA Yasutaka  Sapporo Gakuin University, Department of Social Information, Professor, 社会情報学部, 教授 (70068542)
OGAWA Tsuguo  Human Cultures Association of Kyoto Gakuen University, Professor, 人間文化部, 教授 (20101222)
ASADA Hiroshi  Osaka Prefectural University, College of Integrated Arts and Sciences, Assistant Professor, 総合科学部, 助手 (50151030)
INOUE Tetsu  Osaka University, Graduate School of Medicine, Assistant Professor, 医学系研究科, 助手 (60263282)
Project Period (FY) 2003 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥3,800,000 (Direct Cost: ¥3,800,000)
Fiscal Year 2004: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2003: ¥3,100,000 (Direct Cost: ¥3,100,000)
Keywordscolor vision / hemispheric dominance / cerebral cortex / reaction time / signal detection / discrimination / language / humans / 色覚刺激 / 視覚 / 言語処理 / 主波長
Research Abstract

It has been known that the left hemisphere is dominant in verbal and analystic processing, while the right hemisphere is dominant in emotional and holistic processing. The hemispheric difference in color signal processing is not well documented. We have been studied this matter using a reaction time task with a visual stimuli presented either in the right or the left visual field, and with a response by the ipsilateral hand. We found that significant hemispheric asymmetry with the right dominance in the color processing. No such asymmetry was obtained when we tested using achromatic stimuli, or when we presented color stimuli at the center of the visual field. These results strongly suggested that color processing was differentially processed in the both hemisphere with the right hemisphere dominance. The present study explored further the hemisphere dominance in color processing by investigating the asymmetry in color discrimination. Because discrimination processing based on analystic processing, it may lead to the left hemispheric dominance. On the other hand, the color discrimination might be processed with the right hemispheric dominance, as in the case of color detection, which we obtained previously. We investigated this matter in two tasks, one with language cues for the color discrimination and the other without language cues. In both case the discrimination task resulted in the left hemispheric dominance, showing that the color processing has hemispheric asymmetry ; the color detection is processed more rapidly in the right hemisphere while the color discrimination is processed with a left hemispheric dominance.

Report

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

    (19 results)

All 2004 2003 Other

All Journal Article (16 results) Publications (3 results)

  • [Journal Article] Cortical data processing of letter stimulation to suppressed eye during visual perception rivalry.2004

    • Author(s)
      Asada, H.
    • Journal Title

      J.of Physiological Anthropology and Applied Human Science 23

      Pages: 66-66

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] EEG observation under thinking on questions relating emotional affairs.2004

    • Author(s)
      Aoki, R., Sasaki H.
    • Journal Title

      Neuroscience Research 50

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Hemispheric dominance in color discrimination using reaction time task.2004

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

      Neuroscience Research 50

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Cortical data processing of letter stimulation to suppressed eve during visual perception rivalry.2004

    • Author(s)
      Asada, H.
    • Journal Title

      J.of Physiological Anthropology and Applied Human Science Vol.23, No.2

      Pages: 66-66

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] EEG observation under thinking on questions relating to emotional affairs.2004

    • Author(s)
      Aoki, R., Sasaki, H.
    • Journal Title

      Neurosci.Res. 50

      Pages: 5207-5207

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Hemispheric dominance in color discrimination using reaction time task.2004

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

      Neurosci.Res. 50

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 色彩情報処理における左右大脳半球の機能差2004

    • Author(s)
      佐々木 仁
    • Journal Title

      日本心理学会第68会大会論文集

      Pages: 457-457

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Hemispheric dominance in color discrimination using reaction time task.2004

    • Author(s)
      Sasaki H. et al.
    • Journal Title

      Neurosci.Res. 50

      Pages: 261-261

    • Related Report
      2004 Annual Research Report
  • [Journal Article] EEG observation under thinking on questions relating to emotional affairs.2004

    • Author(s)
      Aoki, R. et al.
    • Journal Title

      Neurosci.Res. 50

      Pages: 336-336

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Hemispheric dominance in color processing using reaction time task.2003

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

      Neuroscience Research 46

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Hemispheric asymmetry in colour detection as revealed by a simple reaction time in human subjects.2003

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

      The Japanese Journal of Physiology 53

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Hemispheric dominance in color processing using reaction time task.2003

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

      Neurosci.Res. 46

      Pages: 572-572

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Hemispheric asymmetry in color detection as revealed by a simple reaction time in human subjects.2003

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

      The Japanese Journal of Physiology Vol.53, Supple.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 選択的注視時の視覚情報維持に関与する頭頂後頭部皮質活動-自発性瞬目および暗転刺激時の脳磁図解析-2003

    • Author(s)
      浅田 博
    • Journal Title

      臨床脳波・別冊 44(4)

      Pages: 229-233

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 中枢神経系の再生と機能修復をめざして2003

    • Author(s)
      福田 淳
    • Journal Title

      脳の科学 25

      Pages: 3-9

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 大脳皮質の感覚機能における可塑性-視覚障害と機能回復を中心に-,新世紀の精神科治療2003

    • Author(s)
      福田 淳
    • Journal Title

      認知の科学と臨床 6

      Pages: 271-283

    • Related Report
      2004 Annual Research Report
  • [Publications] Sasaki H. et al.: "Hemispheric asymmetry in colour detection as revealed by a simple reaction time in human subjects"The Japanese Journal of Physiology. 53,Supple. S242 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Sasaki H. et al.: "Hemispheric dominance in color processing using reaction time task"Neurosci.Res.. 46,Suppl.1. S72 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Sasaki H.et al., A.Kaneko (Ed.): "The Neural Basis of Early Vision"Springer-Verlag (Tokyo). 253 (2003)

    • Related Report
      2003 Annual Research Report

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

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