This experiment asked whether infants at 5 months perceived an invariant over four types of rigid motion (perspective transformations), and thereby differentiated rigid motion from deformation. Four perspective transformations of a sponge rubber object (rotation around the vertical axis, rotation around the horizontal axis, rotation in the frontal…

Listed are nearly 300 books, articles, and audiovisual materials relating to visual literacy. Listings for written materials include author, title, publisher, and date of publication. Audiovisual listings include title, media type, date of production, and distributor. (EMH)

Black-and-white or color versions of four types of illustrations (simple line, detailed line, photograph of model, photograph of specimen) of the heart were used to complement oral instruction in a study to determine which type of visualization would be most effective in facilitating the achievement of students of different IQ levels. (Author)

This study investigates the effects of background music in a dramatic television presentation on university students' perception and retention of the presentation's cognitive content. (Author)

Simultaneous and successive visual and tactual shape discrimination were examined in this study which replicated with modifications an earlier study. When ceiling effects were precluded, data support the conclusion that children often find it more difficult to discriminate shapes by touch than by vision. (GO)

A total of 174 first, second, and third graders were tested to examine the relation between perceptual salience and cognitive style. The results indicated that implusives made more errors than reflectives only on trials requiring the use of the least salient dimension and that these performance differences decreased with age. (JMB)

A tachistoscopic recognition task was administered to 36 retarded readers and 36 normal readers aged 6.5 to 7.5 yr. The purpose was to determine whether the retarded readers' visual-perceptual deficit was a function of speed of exposure and/or difficulty of discriminating alternatives on response cards. (Editor)

The importance of awareness of the pictorial surface and point of observation was investigated in children and adults. The effect of station point was found to interact with pictorial surface and age, thus suggesting the development of a mechanism of compensation for the perspective distortion of oblique view. (JMB)

The role of mental age (MA) and visual-perceptual ability in number concept development was examined with 48 nonretarded and retarded children from regular school settings. (Author)

Human visual recognition on the basis of shape but regardless of size was investigated by reaction time methods. Results suggested two processes of size scaling: mental-image transformation and perceptual-scale transformation. Image transformation accounted for matching performance based on visual short-term memory, whereas scale transformation…

The first aim of this study was to assess the proportion of students at different levels in a Nigerian secondary school who interpret selected diagrams in 3 or 2 dimensional terms and to see if there are differences between these interpretations and those of English students. (Author/AM)

Attempts to determine if imagination could replace physical color and pattern in adaptation stimuli known to produce orientation-specific color aftereffects. (Editor/RK)

Traditionally reversal errors in reading and writing have carried serious implications in primary grade education of the need for special education intervention and diagnosis. (Author/MH)

Two-letter stimulus displays, differing in the magnitude of the horizontal spatial separation between the letters, were presented tachistoscopically to 10 retarded and 1 nonretarded adults. (Author/CL)