Individuals with 22q11.2 deletion syndrome (22q11.2DS) are impaired at exploring visual information in space; however, not much is known about visual form discrimination in the syndrome. Thirty-five individuals with 22q11.2DS and 41 controls completed a form discrimination task with global forms made up of local elements. Affected individuals…

TEN PAIRS OF BLIND CHILDREN AGED SIX TO 13 YEARS WHO HAD SOME VISION WERE MATCHED BY PRETEST SCORES ON A TEST OF VISUAL DISCRIMINATION. A CRITERION GROUP, DESIGNATED THE PRINT COMPARISON GROUP, HAD SLIGHLY HIGHER RECORDED DISTANCE ACUITIES AND USED VISION AS THE PRIMARY MEANS OF LEARNING. PAIRS OF EXPERIMENTAL SUBJECTS DAILY RECEIVED 45 MINUTES OF…

Twenty-five older adults with age-related macular degeneration were separated into one of three groups: in-clinic training, take-home-training, or no-training. After testing, results showed that the ability to distinguish figure from ground is an improvable skill with the take-home group improving the most. (Author/DB)

Visual persistence was investigated in adults with and without dyslexia in order to determine whether dyslexic adults demonstrate problems similar to those found in childhood dyslexia. Results showed that sensitivity of dyslexic adults was impaired when parts of a test stimulus were presented to adjacent retinal areas, suggesting that under…

The relationship of astigmatism to reading and the possible detrimental effects it might have on reading were investigated. The greatest incidence of astigmatism was for the with-the-rule type ranging from .50 to 1.00 diopter. This type of astigmatism was induced in 35 seniors from the Los Angeles College of Optometry by placing cylindrical lenses…

This study assesses the validity of an interview questionnaire designed to predict performance by low-vision adults (N=41) on tasks of finding, detecting, scanning, and tracking. Subjects' ratings of difficulty with these tasks were compared to ratings of trained professionals. Results indicate self-report may be of some value in predicting…

This study presented 24 third graders drawn from suburban elementary schools with high frequency, low discriminability words in four conditions. Subjects were randomly assigned to the four tasks individually. It was hypothesized that poor and normal readers would differ in their ability to read high frequency, low discriminability words presented…

Practice in interpreting the critical features of incomplete line drawings and integrating fragmentary visual information was shown to enhance the visual efficiency of partially sighted children, aged 5 to 8. (BW)

The development of visual perception skills in children with partial vision as well as developmental disabilities is considered. A model of visual learning is offered which incorporates the role of visual experience, movement, and visual learning. Specific teaching suggestions for developing visual attention and visual search skills are offered.…

Papers included are the following: aspects of mobility in the blind by J.A. Leonard; the development and analysis of tactual measures of intelligence for the adolescent and adult blind, a summary of a doctoral dissertation by Eoline Christine Cull; an investigation of human visual information transmission, a doctoral dissertation by Ronald Joseph…

The development of sensory and perceptual ability in infants is an important area of infancy research. This book reflects current knowledge of perceptual development and points to some of the many questions that remain unanswered. The book is divided into four parts. Part 1, "How the Visual System Develops: Normal and Abnormal…

This practicum provided training for 50 parents of children receiving clinic services for visual processing disorders and provided information on visual disorders to the children's teachers. The 8-month program involved 13 parent training sessions. These sessions focused on such topics as: current research findings on vision; identification of…