• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2004 Fiscal Year Final Research Report Summary

Assessment of left unilateral spatial neglect using illusory figures

Research Project

Project/Area Number 13610107
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 実験系心理学
Research InstitutionTokyo Metropolitan Organization fur Medical Research

Principal Investigator

KOYAMA YASUMASA  Tokyo Metropolitan Organization for Medical Research, Tokyo Metropolitan Institute far Neuroscience, Researcher, 東京都神経科学総合研究所, 研究員 (20281678)

Project Period (FY) 2001 – 2004
Keywordsunilateral spatial neglect / illusory figure / neuropsychology / attention
Research Abstract

Unilateral spatial neglect is the failure to report, respond, or orient to novel or meaningful stimuli presented to the side opposite a brain lesion (Heilman, 1979). Traditionally unilateral spatial neglect is evaluated by using several visual exploration tests, such as the line cancellation task, or the line bisection task. The aim of the present study was to evaluate the new assessment technique using optical illusion. We performed three experiments employing the Wundt-Jastrow illusory figures to investigate the clinical application of this type of test and to evaluate the cognitive functions of the patients with left unilateral spatial neglect In the first experiment, the test was given to the patient with callosal lesion and clarified the attentional aspect of the cognitive function of the patient by using the Wundt-Jastrow Illusory figures. In the next experiment, we recorded the eye movement of this patient during the test His gaze quickly moved to the right side of the figure without substantial leftward search, To investigate precise eye fixation patterns, we performed the third experiment by using line bisection with structured presentation method. The results revealed that the patients were inferred line length mainly from the right endpoint of the stimulus. Through this series of experiments, it implies that the response to the illusory figure in patients with unilateral spatial neglect may reveal overattention to the right side of stimulus. Additional experiments confirmed that representational aspect of the deficit was also affected to these results.

  • Research Products

    (10 results)

All 2004 2003 2001

All Journal Article (10 results)

  • [Journal Article] 左半側空間無視患者の空間的位置の記憶と二等分2004

    • Author(s)
      小山康正
    • Journal Title

      高次脳機能研究 24

      Pages: 57

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Spatial working memory and line bisection in patients with left unilateral spatial neglect2004

    • Author(s)
      Koyama, Y.
    • Journal Title

      Higher Brain Function Research 24

      Pages: 57

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] 重度左半側空間無視患者の線分二等分における「右端」の意義について-アイカメラによる検討-2003

    • Author(s)
      小山康正
    • Journal Title

      神経心理学 19

      Pages: 234

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 左半側空間無視患者の空間的位置の記憶2003

    • Author(s)
      小山康正
    • Journal Title

      神経心理学 18

      Pages: 37

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Wundt-Jastrow錯視図形における左半側空間無視患者の反応2003

    • Author(s)
      小山康正
    • Journal Title

      失語症研究 23

      Pages: 49

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Significance of right endpoint in line bisection task to the patients with severe left unilateral spatial neglect2003

    • Author(s)
      Koyama, Y.
    • Journal Title

      Japanese Journal of Neuropsychology 19

      Pages: 234

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Spatial working memory of patients with unilateral spatial neglect2003

    • Author(s)
      Koyama, Y.
    • Journal Title

      Japanese Journal of Neuropsychology 18

      Pages: 37

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] The Wundt-Jastrow illusion in the study of left unilateral spatial neglect2003

    • Author(s)
      Koyama, Y.
    • Journal Title

      Higher Brain Function Research 23

      Pages: 49

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Wundt-Jastrow錯視図形による脳梁損傷患者の半側空間無視に関する検討2001

    • Author(s)
      小山康正
    • Journal Title

      神経心理学 17

      Pages: 284

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] The study of unilateral spatial neglect in a patient with callosal lesion by using Wundt-Jastrow illusory figures2001

    • Author(s)
      Koyama, Y.
    • Journal Title

      Japanese Journal of Neuropsychology 17

      Pages: 284

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

URL: 

Published: 2007-12-13  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi