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Spatial knowledge in blind and sighted children

B A Morrongiello1, B Timney, G K Humphrey

  • 1Department of Psychology, University of Guelph, Ontario, Canada.

Journal of Experimental Child Psychology
|April 1, 1995
PubMed
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Congenitally blind children show comparable navigation skills to sighted children, but with less accuracy in final positioning. This study explores spatial knowledge development in children with and without visual impairments.

Area of Science:

  • Developmental Psychology
  • Cognitive Science
  • Neuroscience

Background:

  • Spatial knowledge is crucial for navigation and environmental understanding.
  • Previous research has explored spatial cognition in sighted individuals, but less is known about congenitally blind children's capabilities.
  • Understanding how blindness impacts spatial mapping is essential for developing effective educational and assistive strategies.

Purpose of the Study:

  • To evaluate and compare spatial knowledge and navigation skills in sighted and congenitally blind children.
  • To investigate the development of cognitive mapping abilities with age in both groups.
  • To analyze the efficiency and accuracy of spatial navigation strategies.

Main Methods:

  • A large-scale, four-location navigation task was adapted from Landau, Spelke, and Gleitman (1984).

Related Experiment Videos

  • Participants included sighted and congenitally blind children.
  • Performance was assessed by coding exact paths, initial turn accuracy, closest position, final position accuracy, and path efficiency. Sighted children also completed tactile and memory-based mapping tasks.

    • Main Results:

    • Sighted children demonstrated increasing cognitive mapping skills with age on both navigation and mapping tasks.
    • Congenitally blind children performed comparably to sighted children in most navigation aspects.
    • Blind children showed significantly lower accuracy at the final target position compared to sighted children.

    Conclusions:

    • Spatial navigation skills develop with age in sighted children.
    • Congenital blindness does not impede overall spatial navigation abilities as much as previously thought, though final position accuracy is affected.
    • Further research is needed to understand the nuances of Euclidean coding skills in young children, particularly those with visual impairments.