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Development of voluntary/in-voluntary eye movements and perceptual figure-ground segregation in the newborn and the infant.

Research Project

Project/Area Number 02610037
Research Category

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

Allocation TypeSingle-year Grants
Research Field Psychology
Research InstitutionThe University of Tokyo

Principal Investigator

SHIMOJO Shinsuke  Tokyo Univ. Psychology, Asoc. Prof., 教養学部, 助教授 (70183837)

Project Period (FY) 1990 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1992: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1991: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1990: ¥1,000,000 (Direct Cost: ¥1,000,000)
Keywordsnewborn / infant / visual acuity / stereopsis / spatial vision / figure-ground segregation / visual attention / motion vision / 新生児・乳児 / 眼球運動 / 随意・不随意運動 / 心理物理学 / 空間的注意 / 運動錯視 / 身体運動図式 / 図・地の分化 / 視覚発達 / 視知覚 / 立体視
Research Abstract

(1) A "figure-ground-reversal, ambiguous apparent-motion display" was newly designed and developed (Shimojo 1992, Fig.8). As a result of preliminary experiments employing this paradigm, at least 6- to 8-month-old infants consistently showed head and eye movements accordingly to figure-ground segregation in the display. This opens a new approach to infantile development of involuntary eye movements in its tight relation to the development of visual perception.
(2) Development of grating acuity, hyper acuities, binocularity, spatial vision were summarized and reviewed (Shimojo 1992). These findings were then discussed in terms of monocular and binocular information processing based on maturation of the peripheral and central visual pathways.
(3) The hypothesis of "non-selective convergence" was proposed as for prestereoptic binocular vision and onset of stereopsis. A variety of psychophysical results in infants ranged from 1 to 10 months of age were unanimously consistent with this hypothesis. These findings and hypothesis were further discussed together with the latest findings in psychophysics of adult's binocularity, leading to a new insight on binocular visual functions in general (Shimojo 1993).
(4) When recognition of space including the "self body" was assessed through the mirror-reversal phenomena in cutaneous perception and motor reproduction, the results were qualitatively the same as those in the normal and congenitally blind subjects (Nagata & Shimojo 1992). Moreover, socalled joint attention and social referencing are currently investigated at about 1-year olds.
(5) Psychophysical experiments on visual-spatial attention in the normal adult revealed that a new kind of motion illusion is experienced when there is a gradient in terms of information processing efficiency across the visual field, based on either stimulus-driven or voluntary attention (Hikosaka et al. 1993).

Report

(4 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • 1990 Annual Research Report
  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] NAGATA,Y.&SHIMOJO,S.: "Mirror-reveral phenomena in the cutaneous perception and writing of children" Perception. 20. 35-47 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] HIKOSAKA,O.MIYAUCHI,S.SHIMOJO,S.: "Voluntary and stimulus-induced attention detected as motion sensation." Perception.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] HIKOSAKA,O.MIYAUCHI,S.SHIMOJO,S.: "Focal visual attention produces tempral order and motion sensation." Vision Research.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] O.HIKOSAKA,S.YAMAGUSHI and S.EBASHI(eds.)S.SHIMOJO: "Behavioral assessment of visual functions in infants." Biomrgical Research Foundation, (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S.SHOMOJO: "Development of interocular vision in infants." Oxford University Press, (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Yoko Nagata & Shinsuke Shimojo: "Mirror-reversal phenomena in the cutaneous perception and writing of children." Perception. 20. 35-47 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Hikosaka, O., Miyauchi, S. & Shimojo, S.: "Voluntary and stimulus-induced attention detected as motion sensation." Perception.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Hikosaka, O., Miyauchi, S. & Shimojo, S.: "Focal visual attention produces temporal order and motion sensation." Vision Research.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] O. Hikosaka, S. Yamagishi & S. Ebashi (eds.) S. Shimojo: Behavioral assessment of Visual Functions in Infacts.Biomedical Research Foundation, (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S. Shimojo: Development of Interocular Vision in Infants.Oxford University Press, (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Hikosaka,O.,Miyauchi,S.& Shimojo,S.: "Voluntary and stimulus-induced attention detected as motion sensation." Perception.

    • Related Report
      1992 Annual Research Report
  • [Publications] Hikosaka,O.,Miyauchi,S.& Shimojo,S.: "Focal Visual attention produces temporal order and motion sensation." Vision Research.

    • Related Report
      1992 Annual Research Report
  • [Publications] O.Hikosaka,S.Yamagishi and S.Ebashi(eds.) S.Shimojo: "Behavioral assessment of visual functions in infants." Biomrdical Research Foundation, (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] S.Shimojo: "Development of interocular vision in infants." Oxford University Press, (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Nagata Y.and Shimojo.S.: "Mirror reversal phenometa in cutaneous perception." Perception. 20. 35-47 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Shimojo.S.: "Behavioral assessment of visual functions in infants" Biomedical Research. 13.

    • Related Report
      1991 Annual Research Report
  • [Publications] 下條 信輔・彦坂 興秀: "視覚的注意の心理学" 生体の科学:特集ー意識と脳.

    • Related Report
      1991 Annual Research Report
  • [Publications] Simons,K.(de.): "Development of interocular vision in infants Handbook of Infant Vision:Laboratory and clinical reseach."

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Shimojo & K.Nakayama: "Amodal representation of occluded surface:role of invisible stimuli in apparent motion correspondence." Perception. 19. 285-299 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] K.Nakayama & S.Shimojo: "Da Vinci Stereopsis:Depth and subjective occluding contours from unpaired image points." Vision Research. 30. 1811-1825 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] K.Nakayama,S.Shimojo & V.S.Ramachandran: "Transparency:Relation to depth,subjective contours,and neon color spreading." Perception.

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Takeichi,T.Watanabe & S.Shimojo: "Illusory occluding contours and surface formation by depth propagation." Perception.

    • Related Report
      1990 Annual Research Report
  • [Publications] K.Nakayama & S.Shimojo (Eds): "The Brain"

    • Related Report
      1990 Annual Research Report

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

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