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Bigelow, A. E. – Journal of Visual Impairment and Blindness, 1992
Comparison of 2 totally blind, 2 visually impaired, and 9 normally sighted children (ages 5-8) on tasks of visual perspective taking found that the totally blind children were older than the other children when they mastered the tasks, made the highest percentage of errors before mastery, and made different errors. (Author/DB)
Descriptors: Blindness, Cognitive Development, Partial Vision, Problem Solving
Miller, Charles K. – Educ Visually Handicapped, 1969
An abstract of a study done during doctoral work (Temple University, Philadelphia, Pennsylvania). (RJ)
Descriptors: Age Differences, Blindness, Cognitive Development, Conservation (Concept)

Wan-Lin, M. M.; Tait, P. E. – Journal of Visual Impairment and Blindness, 1987
Among results comparing attainment of the conservation concept in blind (N=30), partially sighted (N=50), and sighted (N=40) children (ages 6-15) in Taiwan were that development of partially sighted children was more like the development of sighted than blind children, and that a 1-4 year developmental lag occurred in blind children. (Author/DB)
Descriptors: Age Differences, Blindness, Cognitive Development, Concept Formation

Swanson, Lee; And Others – Psychology in the Schools, 1979
A comparative study of conservation development in partially sighted, sighted, and sighted blindfolded children at four age levels was assessed. Conservation on tasks of mass, weight, and volume were evaluated using Piaget and Inhelder's prediction, judgment, and explanation questions. The significant differences were found between groups, task,…
Descriptors: Blindness, Cognitive Development, Conservation (Concept), Elementary Secondary Education

Miletic, G. – Journal of Visual Impairment & Blindness, 1995
This study evaluated the knowledge of Level 1 and Level 2 rules of perspective taking by 18 8-year-old children (either congenitally blind, congenitally low vision, or sighted). All children understood Level 1 rules; their knowledge of Level 2 rules (that a heterogeneously sided object will appear differently to viewers from different sides)…
Descriptors: Blindness, Children, Cognitive Development, Concept Formation
Bach-Y-Rita, Paul; Hughes, Barry – 1985
The paper reviews the effects of absence of vision on perceptual functioning and considers ways in which a modified Optacon (which translates images into tactile presentations) can help visually impaired persons acquire critical cognitive and perceptual knowledge. Background research with the Tactile Vision Substitution System, a system for…
Descriptors: Assistive Devices (for Disabled), Blindness, Cognitive Development, Electromechanical Aids

Swanson, Lee – Journal of Genetic Psychology, 1979
The development of the concept of conservation was examined in 120 elementary school children divided into three groups: partially sighted, sighted, and sighted-blindfolded. (CM)
Descriptors: Blindness, Cognitive Development, Concept Formation, Conservation (Concept)

Zeppuhar, Mary Ellen; Walls, Richard T. – Journal of Visual Impairment & Blindness, 1998
Thirty-seven students who were blind or had low vision listed as many examples of 10 categories as they could and the prototype order of examples was scored. No differences between blind or low-vision students were found, but categories with which the students had a greater degree of direct sensory experience produced more examples and higher…
Descriptors: Age Differences, Blindness, Classification, Cognitive Development
Council for Exceptional Children, Reston, VA. – 1992
This digest provides basic information and resources on visual impairments. Legal and educational definitions are given for "legally blind,""partially sighted,""visually handicapped,""blind," and "low vision". Typical characteristics of individuals with visual impairments in the areas of cognitive…
Descriptors: Blindness, Child Development, Cognitive Development, Definitions

Groenveld, M.; Jan, J. E. – Journal of Visual Impairment and Blindness, 1992
Analysis of scores of 118 visually impaired children on the Wechsler Intelligence Scale for Children (Revised) and the Wechsler Preschool and Primary Scales of Intelligence (Revised) found a consistent response pattern suggesting that the verbal as well as the performance tests provide useful assessment information. (Author/DB)
Descriptors: Blindness, Cognitive Development, Evaluation Methods, Intelligence
Zemstova, M. I., Ed.; And Others – 1969
This document is an English-language abstract (approximately 1,500 words) of a monograph providing a comprehensive clinical, educational, and psychological study of children in special schools for the blind and poorly sighted. It summarizes investigations aimed at planning ways of differentiating teaching procedures for children with severe visual…
Descriptors: Abstracts, Blindness, Cognitive Development, Handicapped Children

Lister, Caroline; And Others – Early Child Development and Care, 1996
Through seriation, verbal seriation, and conservation tasks, investigated blind, partially sighted, and sighted children's understanding of quantity. Subjects were 81 children equally dispersed through these 3 groups. Age range was 4 to 17 years. Found similarity in concept acquisition among three groups that extended beyond quantity conservation…
Descriptors: Adolescents, Blindness, Cognitive Development, Cognitive Processes

Bauman, Mary K.; Kropf, Carol A. – School Psychology Digest, 1979
Questionnaire results from l04 psychologists serving the blind and partially sighted indicated disagreement on the tests used and on the evaluation of these tests. Tests of all kinds from 45 publishers were rated, and appropriate ages and populations (blind, partially-sighted) were suggested. (CP)
Descriptors: Achievement Tests, Aptitude Tests, Blindness, Cognitive Development
Monroe County School District, Key West, FL. – 1991
Intended for use in Florida training programs for caregivers of infants and toddlers with disabilities, this guide presents an overview of the Model of Interdisciplinary Training for Children with Handicaps (MITCH); offers a user's guide to the series; and provides specific information for presenting Module 12, which focuses on visual impairments.…
Descriptors: Blindness, Child Caregivers, Child Development, Cognitive Development