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Jacobsen, Karl; Grottland, Havar; Flaten, Magne Arve – American Journal on Mental Retardation, 2001
Assessment of visual acuity, using Teller Acuity Cards, was combined with observations of behavioral state to indicate central nervous system activation in 24 individuals with mental retardation. Results indicate that forced-choice preferential-looking technique can be used to test visual acuity in this population unless the participant is drowsy.…
Descriptors: Children, Evaluation Methods, Mental Retardation, Neurology
Download full textJacobsen, Karl; And Others – 1990
This study examined infants' change in visual information pick-up, from an infant-like stimulus-locked visual scanning pattern to an adult-like cognitive control of visual information pick-up. Subjects were 21 children between 25 and 42 months of age. Eye movements were videotaped in a preferential looking situation and later analyzed as still…
Descriptors: Child Development, Cognitive Development, Developmental Stages, Eye Fixations
