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Hall, Amanda – Journal of Visual Impairment and Blindness, 1983
The study explored ways in which congenitally blind children group objects and words, revealing their level of cognitive development. Differences in patterns of response as a function of age and type of tasks are presented, and the implications of these findings for the education of this population are discussed. (Author/CL)
Descriptors: Age Differences, Blindness, Cognitive Development, Concept Formation

Johnston, Judith R. – Journal of Speech and Hearing Research, 1982
Items from the Leiter International Performance Scale (LIPS) were analyzed for their conceptual versus perceptual character; these item groupings were then used to create intratest LIPS profiles for 16 language-disordered and 16 children aged 4.4 to 5.5, who were matched for CA, sex, and Leiter IQ. (Author)
Descriptors: Cognitive Development, Early Childhood Education, Item Analysis, Language Handicaps

Kearsley, Richard B. – American Journal of Orthopsychiatry, 1981
Traditional developmental protocols based on neurological or sensorimotor models frequently underestimate the cognitive status of physically handicapped infants. A critical review of current clinical practices in the area of infant assessment is followed by a discussion of an alternative approach, a perceptual-cognitive approach, and the…
Descriptors: Child Development, Cognitive Development, Infants, Perceptual Development

Haroutunian, Sophie – Educational Theory, 1980
Piaget's use of the equilibrium model to define knowledge results in a cybernetic conception of knowledge that cannot explain how knowledge becomes possible. The knowledge that behaviors apply discriminately must be acquired, and cannot be programed, and therefore cannot be learned. (FG)
Descriptors: Cognitive Style, Concept Formation, Cybernetics, Developmental Stages

Maurer, Daphne; Barrera, Maria – Child Development, 1981
One- and two-month-old infants were shown schematic drawings of a human face with features arranged (1) naturally, (2) symmetrically but scrambled, and (3) asymmetrically and scrambled. Two-month-olds discriminated among all arangements and preferred the natural arrangement; one-month-olds showed no discrimination or preference. (Author/DB)
Descriptors: Age Differences, Infant Behavior, Infants, Perceptual Development

Chevrier, Jacques; Delorme, Andre – Perceptual and Motor Skills, 1980
Aesthetic preferences for overlapping geometrical figures were studied in subjects ages 6 through 14 in the context of the theory of functional pleasure. Results confirmed the hypothesis that the complexity level (number of crossings) of the preferred stimulus varies with the subjects' perceptual capacities, which develop with age. (Author/SJL)
Descriptors: Age Differences, Art Appreciation, Children, Design Preferences

Luchow, Jed P.; Shepherd, Margaret Jo – Learning Disability Quarterly, 1981
The results suggested that on a perceptual task not related to reading or mathematics, the addition of input from tactile and auditory sensory modalities does not improve learning performance and, in certain combinations, actually interferes with such performance. (Author/SBH)
Descriptors: Elementary Education, Exceptional Child Research, Learning Disabilities, Multisensory Learning

Yonas, Albert; And Others – Developmental Psychology, 1978
Investigates the responsiveness of 14- and 20-week-old infants to binocular information using a stereoscopic shadow caster showing an object approaching on a collision course. (Author/SS)
Descriptors: Age Differences, Depth Perception, Infant Behavior, Infants

Spelke, Elizabeth S. – Developmental Psychology, 1979
Three experiments investigated four-month-old infants' capacity to perceive bimodally specified events by detecting the temporal synchrony of sound bursts with the visable impacts of surfaces. (Author/SS)
Descriptors: Auditory Tests, Infant Behavior, Infants, Perceptual Development

Daehler, Marvin W.; O'Connor, Mary P. – Journal of Experimental Child Psychology, 1980
Two experiments were conducted to examine whether gross perceptual similarity (shape similarity) and basic conceptual similarity (label similarity) are processed by very young children and influence preferences for novel stimuli. The 88 subjects were 12 to 38 months of age. (MP)
Descriptors: Age Differences, Infants, Memory, Novelty (Stimulus Dimension)

Smith, Linda B. – Child Development, 1979
Investigated the development of classificatory organization. Two experiments examined age differences in children's spontaneous extensions of a classification and a third examined children's extensions under hypothesis-testing instructions. (JMB)
Descriptors: Age Differences, Classification, Elementary Education, Elementary School Students

Houghton, Robert Roy; Tabachnick, Barbara Gerson – Journal of Learning Disabilities, 1979
Changes in magnitude of Muller-Lyer illusion lines between forks and arrows as a function of age were studied in 48 hyperactive and 48 nonhyperactive boys (six-nine years old).
Descriptors: Age Differences, Children, Developmental Stages, Exceptional Child Research

Olson, Richard K.; Boswell, Sally L. – Child Development, 1976
Descriptors: Depth Perception, Perceptual Development, Pictorial Stimuli, Preschool Children

Kavsek, Michael J. – Child Development, 2002
Used a habituation-dishabituation procedure to test ability of 4-, 5-, and 7-month-olds to differentiate between a subjective ellipse and a nonsubjective pattern that were constructed by displacing the inducing elements of the illusory figure. Found that even 4-month-olds discriminated between the subjective ellipse and nonillusory display. This…
Descriptors: Age Differences, Infant Behavior, Infants, Perceptual Development

Arterberry, Martha; And Others – Developmental Psychology, 1989
Results indicate that seven-month-old infants are sensitive to the depth cues of linear perspective and texture gradients. Self-produced locomotor experience is not necessary for the development of sensitivity to static-monocular depth information. (RJC)
Descriptors: Age Differences, Depth Perception, Infants, Perceptual Development