In the design of visual simulation equipment for training systems, one key decision is the nature of the image storage medium to be used. One consideration in this complex issue is the adequacy of the depth cues which can be derived from imagery based on two- rather than three-dimensional sources. Although motion parallax is a relatively minor…

Compares monocular depth perception with binocular depth perception in five- to seven-month-old infants. Reaching preferences (dependent measure) observed in the monocular condition indicated sensitivity to monocular depth information. Binocular viewing resulted in a far more consistent tendency to reach for the nearer object. (Author)

Results of this study suggest that 3-year-olds have a good deal of sensitivity to static depth information. (Authors)

The brain-injured group performed with greater error scores and required more time to complete the tasks; although the brain-injured group took more time on the binocular tasks, their performance scores were similar to the nonbrain-injured group scores. (Author)

Tests the hypothesis that children will be better than adults at perceiving depth at large disparities in random-dot stereograms. Subjects were 4, 6, 8, and 25 years of age, with six males and six females in each of the four age groups. (MP)

Two experiments examined the effects of common motion, background texture, and orientation on four-month olds' perception of unity of a partially occluded rod. Results indicated that infants' perception of object unity is not dependent on a single visual cue but on a variety of cues including motion, interposition, depth cues, background texture,…

Examines the use of pictures by different learners in different ways, and presents guidelines for using pictures in teaching culturally diverse children. The degree of complexity versus simplicity is discussed, the need for effective directional cues is emphasized, and depth and motion cues are described. (LRW)

Reports two experiments in which plain blocks of various sizes were presented in various spatial orientations to children three-eight years old in an attempt to establish how they represent three-dimensional spatial relations pictorially. Results showed that young children represented depth in the array vertically in the picture plane. (RH)

This article describes the physiological mechanisms involved in three-dimensional depth perception and presents a variety of distance and depth cues and strategies for detecting and estimating curbs and steps for individuals with impaired vision. (Author/DB)

Sixty-four infants viewed side-by-side videotapes of toy trains (in four visual conditions) and listened to sounds at increasing or decreasing amplitude designed to match one of the videos. Results suggested that five-month olds were sensitive to auditory-visual distance relations and that change in size was an important visual depth cue. (MDM)

Investigates the effect of orientation of depth cues on the magnitude of perceived depth in pictures. Finds that, for each test drawing, the orientation with the far point above the near point provided greater depth perception than any other orientation. Discusses possible contributions of observer experience and height of visual field. (DSK)

A school-based experimental investigation concerned with contour maps is described. The results, together with those of some other related investigations, point to probable value of models, stereograms, anaglyphs, and other stereoscopic presentations in the teaching of three-dimensional subjects. (Author)

Explains how to construct a three dimensional model for stereographic projection. It will be suitable for presenting the symmetry of crystal systems, and will help physics students understand the nature of crystallography. (GA)

By presenting moving bars of different widths to the two eyes, an attempt was made to model the differential visual persistence produced by differential intensity filtering in the two eyes (the Fertsch-Pulfrich effect). (Editor)