Article focused on R. L. Gregory's theory of distortion illustions and his defense of that theory. (RK)

A discussion of why the prime concern of the video programer should be the arrangement of the subject matter for visual rather than aural communication whenever possible. (Author)

Supported by Public Health Service Research Grant MH-12301-02 from the National Institutes of Health.

A paradox in studying sensory perception is that people often attend to a stimulus which provides the least optimal information. Usually, this is a visual stimulus. The study sought to lessen this reliance on vision by training subjects to respond to proprioceptive stimuli. Results are discussed. (Author/JL)

The authors describe a project to design a playground at the John de la Howe School in South Carolina using students' ideas. A list of ideas for making a playground into a mentally and physically stimulating environment is included. (CH)

Studies of orientation perception in infants and children have revealed an "oblique effect," that is, a performance advantage for tasks involving horizontal and vertical stimulus orientations compared with tasks involving oblique orientations. The two studies reported support the hypothesis that oblique stimulus orientations are treated…

Consistent with findings that infants respond to the orientation of a visual stimulus in a categorical-like manner, data obtained from two- and three-month-old infants viewing horizontal/vertical, non-mirror-image oblique, and mirror-image oblique stimulus pairs indicate that elements of oblique/oblique stimulus pairs were more frequently confused…

Results show that at eight months of age ability to identify the site of an event after reorientation is based on the spatial relationship between the event and environmental features. The latter include features associated with room shape as well as a landmark at the site of the event. (Author/RH)

Evaluates infants less than 1 week of age in a habituation-recovery paradigm for evidence of ability to detect an invariant identity or nonidentity relationship between components of a visual stimulus. (Author/NH)

Investigates the effect of target size and presence, intensity, and location of sound on the visual following of infants one and two months of age. (Author/RH)

The nature of eye-pressing as a visual stimulation mannerism in children with severely impaired eyesight is examined, and a possible physiological explanation (that self-stimulation occurs when the demand of the brain for meaningful visual information is not met) is offered. (CL)

Compares the responses of four-month-olds in two situations, one in which a moving peripheral stimulus follows a central fixation stimulus and another where the peripheral stimulus is simultaneous with the central fixation. Simultaneous presentation decreases visual orientation to the peripheral stimulus, but cardiac data indicate that the…