Two theories of comparative judgment were compared across four experiments on their ability to explain the Baldwin figure, a focal line whose apparent length is affected by square boxes at or near its endpoints. (Editor)

To determine whether perceptual asymmetries for faces occur at early or late stages of stimulus analysis, subjects compared the members of a pair of faces which appeared in the right or left visual field, either to each other or to a previously presented sample. (Editor)

Compared male and female four-year-olds' performance on a kinesthetic acuity test (KAT) with or without extra visual-spatial cues and on a measure of visual-spatial ability. Found that all children performed better on the KAT with extra cues and that boys scored higher on visual-spatial ability and performed better on the KAT only with extra cues.…

The Miller Assessment for Preschoolers (MAP) and a number/counting test were given to 50 4- and 5-year-olds. Low performance on counting was related to significantly slower average response time, overshoot movement time, and reaction time, indicating perceptual-motor difficulty. Low MAP scores indicated difficulty processing visual spatial…

The visual imagery of four individuals with blindness was compared with that of five sighted individuals using the detection of mirror symmetry. The two participants who lost their sight later in life outperformed the two with congenital blindness, indicating the importance of early visual experience in visual imagery. (CR)

Abilities of individuals (n=42), either with or without mental retardation, to search for and detect changes to naturalistic scenes were investigated. Individuals with mental retardation required more time to detect changes, especially changes of marginal interest. Eye-tracking analysis of six participants suggested that individuals with mental…

A non-verbal 12-year-old boy with low functioning autism was tested on an auditory word-to-picture selection task. Picture foils were chosen to have visual features, semantic features, both, or neither in common with the correct answer. Errors were made more often to semantically than to visually related items. (Contains references.) (Author/CR)

Describes a study that investigated color combination preferences of three- to six-year-olds performing a simple perceptual task on a microcomputer screen. Comparisons with Swedish research are made, implications for the production of educational materials for young children are discussed, and suggestions for further research are made. (10…

Performance by 77 hearing-impaired elementary students on test of visual processing was compared with scores on a test of reading comprehension. Performance intelligence quotient correlated with both visual processing and reading scores. Some variance in reading scores was explained by intelligence quotient and performance on memory tests for…

Reviews visualization research concerning the objects of visualization, the visualization process, and visualization in educational situations. Teaching procedures, the role of material and the social environment, and how the individual interacts with that environment are described. (YP)

Investigates children's cognitive structures with respect to concepts one-half, one-quarter, and one-third as these apply to continuous circular and triangular regions. Examines the effect of an intervention program with 21 children in grades three through six. (YP)

Three studies investigated infants' and young children's perception of the unity of musical events. Results indicated that properties specific to musical instrument families are relevant for young children's perception of musical events. Specific experience with a variety of instruments is evidently not necessary for detecting correspondences of…

Premature infants with subependymal or intraventricular hemorrhage took longer to habituate on a habituation task, and scored lower on a measure of mental development, than did other premature infants or full-term infants. Both groups of premature infants were less successful than full-term infants on an object permanence task. (BC)

This study examined whether 49 adults with mild or moderate mental retardation could perform reliably enough on the Penn Facial Discrimination Task to make this a useful research measure for evaluating visual-receptive processing. Results found subjects generally performed well above chance level, that retest reliability was reasonably high, and…

The Perky effect, identified in 1910, is the reduction in performance from the no-imagery to the imagery condition. A series of experiments with over 100 undergraduates and graduates shows that the reduction reflects a true reduction in visual sensitivity, not just alteration in criteria for responding or response organization. (SLD)