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2005 Fiscal Year Final Research Report Summary

Cognitive neuropsychological research on inter- and intra-hemispheric interference

Research Project

Project/Area Number 15530480
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Experimental psychology
Research InstitutionAichi Shukutoku University

Principal Investigator

YOSHIZAKI Kazuhito  Aichi Shukutoku University, Professor, コミュニケーション学部, 教授 (80220614)

Project Period (FY) 2003 – 2005
Keywordsinterhemispheric interaction / laterality / selective attention / global-local interference / stroop-like interference / perceptual load
Research Abstract

The main aim of the present research was to investigate interhemispheric interaction in local and global processing. A pair of a single letter and a Navon-type hierarchical pattern was presented to a unilateral (Within-Field) and a bilateral visual-fields (Across-Field). In the first series of experiments, which used a small-single letter as a target, the local interhemispheric interference in Across-Field was larger when the target was presented to the right hemisphere (RH) than when it was presented to the left hemisphere. In the second series of experiments, which used a large-single letter as a target, only a global interference appeared and its size was constant irrespective of the side where the distracter was presented. These findings suggested that interhemispheric interaction would be modulated by attentional allocation.
The second aim of the current study was to examine the effect of interference on interhemispheric interaction in the reverse-stroop task. In two experiments, color-word in black ink and color-patch in red or blue ink were briefly presented to a bilateral visual-field (BVF). The participants were asked to identify the color word, ignoring the color patch. In Experiment 1, color-words written in kanji character were used as target ("赤" or "青"). In Experiment 2, color-words written in kana character were used as target ("あか" or "あお"). The result in first experiment showed that the size of the interference effect was invariant irrespective of the visual-field of the target. On the contrary, in the second experiment, the interference effect was larger in the condition where the kana color-word was presented to LVF than to RVF. These result suggested that the interference effect would be modulated by the dominant hemisphere for processing the target.

  • Research Products

    (8 results)

All 2006 2005 2004 2003 Other

All Journal Article (8 results)

  • [Journal Article] 逆ストループ課題における半球間干渉の非対称性2006

    • Author(s)
      西村律子
    • Journal Title

      心理学研究 (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] The effects of learning experience on bihemispheric processing.2005

    • Author(s)
      Yoshizaki, K.
    • Journal Title

      International Journal of Neuroscience 115

      Pages: 937-948

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 半球間干渉は非対称性を示すのか?-ストループ様課題を用いた検討-2004

    • Author(s)
      西村律子
    • Journal Title

      愛知淑徳大学論集-コミュニケーション学部篇- 5

      Pages: 77-88

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Hemispheric metacontrol of a mental addition task in right and left-handers.2003

    • Author(s)
      Yoshizaki, K
    • Journal Title

      Journal of Human Environmental Studies 1(2)

      Pages: 1-8

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Hemispheric metacontrol of a mental addition task in right- and left-handers.2003

    • Author(s)
      Yoshizaki, K., Hatta, T.
    • Journal Title

      Journal of Human Environmental Studies 1(2)

      Pages: 1-8

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] The asymmetry of the interhemispheric interaction in stroop-like task

    • Author(s)
      Nishimura, R., Yoshizaki, K.
    • Journal Title

      Bulletin of Aichi Shukutoku University : Faculty of Communication Studies 5

      Pages: 77-88

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] The effects of learning experience on bihemispheric processing.

    • Author(s)
      Yoshizaki, K., Hatta, T.
    • Journal Title

      International Journal of Neuroscience 115

      Pages: 937-948

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] The asymmetry of interhemispheric interaction in reverse-stroop task

    • Author(s)
      Nishimura, R.
    • Journal Title

      The Japanese Journal of Psychology (in press)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2007-12-13  

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