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Peer reviewedKnowlton, Marie – Exceptional Children, 1997
Visual scanning behavior and efficiency of 22 children with visual disabilities and 25 children without disabilities (ages 3.5 to 10 years) were studied. Significant differences were found between groups in length of scan path and number of objects reported, but no significant differences in scanning efficiency. Coordinated binocular eye movements…
Descriptors: Children, Partial Vision, Vision, Visual Discrimination
Peer reviewedSpafford, Carol S.; And Others – Journal of Learning Disabilities, 1995
This study examined relationships among lens color, visual grating, visual detection task performance, and peripheral retinal brightness thresholds among four adults and four children with reading disabilities and age-matched controls. Subjects with reading disabilities displayed significantly lower contrast sensitivity when tested with sine-wave…
Descriptors: Adults, Children, Etiology, Optometry
Peer reviewedFletcher, James; Martinez, George – Journal of Learning Disabilities, 1994
Twenty-two readers (ages 10 to 35) with scotopic sensitivity parsed sentences under scotopic correction (using colored transparent overlays) and control conditions. Although eye movements suggested enhanced parsing, comprehension scores were not significantly improved with correction. (DB)
Descriptors: Adults, Children, Eye Movements, Reading Comprehension
Peer reviewedFrye, Douglas; And Others – Developmental Psychology, 1986
Investigates the problem young children have in constructing diagonals, noting that, on the whole, they can not make diagonals in the horizontal/vertical configuration. (HOD)
Descriptors: Adults, Age Differences, Children, Difficulty Level
Peer reviewedMerriman, William E.; And Others – Developmental Psychology, 1985
Analyzes sex-related differences between mental rotation rate and spatial ability among adults, 14-year-olds, and 9.5-year-olds to determine the extent to which rotation rate is a correlate of various abilities. (HOD)
Descriptors: Adolescents, Adults, Age Differences, Children
Peer reviewedWhiteley, John H. – Journal of Experimental Child Psychology, 1985
Subjects from kindergarten-age to adult participated in four experiments. In order to view the stimuli, subjects in three experiments activated lights in viewing boxes; in the fourth experiment, stimulus fixations were measured using a corneal reflection technique. Results supported the view that visual observing is controlled by cognitive…
Descriptors: Adults, Age Differences, Children, Cognitive Development
