Among 40 reading disabled volunteers (ages 9-74), subjects with high scotopic sensitivity demonstrated significantly better performance on visual processing tasks when they used colored overlays which maximized visual efficiency, compared with task performance under conditions using overlays of a random color or no color. (JW)

This study examined relationships among lens color, visual grating, visual detection task performance, and peripheral retinal brightness thresholds among four adults and four children with reading disabilities and age-matched controls. Subjects with reading disabilities displayed significantly lower contrast sensitivity when tested with sine-wave…

Using normal adult readers, this study examined the relative involvement of magnocellular and parvocellular processes in reading English phonologically regular pseudowords and irregular words presented in isolation and in contiguity from left to right. The data showed that a low temporal frequency visual measure that implied more parvocellular…

This annotated bibliography on visual perception and its relation to reading is composed of 55 citations ranging in date from 1952 to 1965. Its divisions include Perception of Shape by Young Children, Perception of Words by Children, Perception in Backward Readers, and Perception of Shapes, Letters, and Words by Adults. Listings which include…

The relationship between reading ability and recognition of four kinds of perceptual stimuli for purposes of reading disability diagnosis was investigated. The sample consisted of 84 male grade-3 pupils who were matched on intellectual ability but who differed in reading proficiency. Three groups, based on a 6-month discrepancy either above or…

The effects of stimulus duration and contrast on duration of visible persistence as a function of spatial frequency were investigated in normal and specific-reading-disabled children. Results suggest that disabled readers have different contrast processing at low and high spatial frequencies and indicate differences between readers in basic visual…

Letter pairs that could not be distinguished by learning disabled children were presented using an acquisition-reversal learning paradigm. Relevant external stimuli facilitated discrimination; in reversal, the cues were irrelevant. This technique facilitated learning, as well as retention four days later. (Attentional deficits are discussed). (GDC)

An update and modification of "Vision-Visual Discrimination" published in 1973, this annotated bibliography contains entries from the annual summaries of research in reading published by the International Reading Association (IRA) since then. The first large section, "Vision," is divided into two subgroups: (1) "Visually…