A study involving eight youths and adults with retinitis pigmentosa (and only 20 degree visual field and hearing loss of at least 20 decibels) determined variance in the ability to perceive and comprehend visual stimuli presented by way of the manual modality when modifications were made in configuration, movement speed, movement size, and…

Among the findings were that there was no significant difference in performance between Down's syndrome, other mentally handicapped, and normal Ss matched for mental age, when extraneous developmental factors were eliminated; and that there was no relationship between mental age and visual perception in any group. (DLS)

In order to determine whether mistakes committed by younger children are the result of retention mistakes rather than faulty perceptual encoding, twenty children (6, 8, 10, and 12 years old) reconstructed two visual patterns from immediate memory, while twenty other children (5 and 6 years old) reconstructed the identical patterns by direct…

An adaptation of the Visual Efficiency Scale, which incorporated familiar three-dimensional objects into the task, resulted in a more successful measure of visual proficiency when tested with 15 developmentally delayed kindergarten and primary grade children. (PHR)

It was found, among other things, that rural Ss performed significantly below their mental ages more frequently than urban Ss; and that between the chronological ages of 10 to 14 years, while urban Ss appeared to perform as expected from mental ages, a significant number of rural Ss performed below expectations. (Author/DLS)

Finds significant differences for males and females on the "Mental Rotation Test" within and across trials, but does not show a differential response to training and practice by females, as was hypothesized. (RL)

A nonpsychotic experimental psychologist presents a self-report of several highly organized visual, auditory, and kinesthetic hallucinations that occurred during a 3-day period prior to spinal disc surgery. Probable factors related to the production of the phenomena are described and the relation between hallucination and diagnosis is briefly…

Examines the influence of cultural factors and cultural norms on self-imagery and their implications for art education. (Author/RK)

A comparison was made of the Rorschach responses and the Human Figure Drawings of a group of 21 adult Down's syndrome Ss and the responses of a group of 21 other adult mentally retarded persons (non-Down's syndrome group). (Author)

Investigates the interaction between a model's head turn and an observer's perception of being looked at, as a function of the model's visible eye. (Author/RK)

Results of a study of children's ability to perceive grouped vs. ungrouped objects representing the numbers 1 through 9 showed that perceiving elementally grouped objects was significantly easier than nonelementally grouped objects, and elementally grouped objects in a pattern were significantly easier than non-patterned groupings. (DT)

Thirteen infants were presented with a moving object under two lighting conditions to investigate the role of vision in early reaching. Infants were tested twice, at 5 and 7.5 months of age. The results suggest that proprioceptive feedback and sight of the target allowed for successful reaching with limited visual information, even in relatively…

Two experiments examined the impact of slow development of processing differences among faces in the spacing among facial features (second-order relations). Computerized tasks involving various face-processing skills were used. Results of experiment with 6-, 8-, and 10-year-olds and with adults indicated that slow development of sensitivity to…

Four experiments investigated newborns' ability to discriminate, recognize, and learn visual information embedded in the schematic face-like patterns preferred at birth. Results indicated that newborns discriminated face-like stimuli relying on their internal features and recognized a perceptual invariance between face-like configurations in…