Reports conversations with children attending a New Zealand reading clinic that indicate that the maximum brightness contrast of black-on-white print was a strong contributing factor in the children's reading disabilities. (Author/GT)

Tests three groups of dyslexic children (mean ages 8, 13, 17 years) and three groups of normal achievers (matched for age/IQ) for sound categorization and phoneme deletion, which allows comparison across chronological age and reading age. Finds that children with dyslexia performed significantly worse than their reading age controls on both tasks.…

Examines the etiology of high reading ability in twin pairs. Suggests that reading ability and its cognitive correlates are on a continuous distribution, with both extremes of the distribution being similarly heritable. Supports the hypothesis that the same cognitive processes that are associated with dyslexia are important for the development of…

Eighty-two elementary school children with attention deficit disorder (ADD) and dyslexia made more errors than 83 normally reading children with ADD on a test of rhyme and alliteration. A subgroup of dyslexic children who were sensitive to rhyme and alliteration scored higher than other dyslexic children on a test of spatial ability. (Author/DB)

Findings indicated that low levels of word recognition skills, which are characteristic of dyslexic children, persist into adulthood, particularly in terms of slow word recognition. Further, adults with childhood diagnoses of dyslexia do not use word-recognition processes that are appropriate for their age level or, in some cases, for their…

Temporal processing capabilities of 15 dyslexic children and 15 age-matched and 15 reading-matched controls were compared. One- and two-syllable words were displayed for short and long durations; subjects exhibited decreased word identification accuracy in the two-syllable, short-duration condition. No differences in eye movement behaviors were…

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 paper discusses problems with traditional definitions of dyslexia and reviews research that suggests a more comprehensive definition, viewing dyslexia as a developmental language disorder that involves a deficit in phonological processing. The disorder is seen as manifesting itself in various phonological difficulties as well as in a specific…

In contrast to the hypothesis that dyslexics possess phonological deficits of neurological origin, the paper proposes that the source of the deficit is primarily experiential. Evidence from normal reading and spelling development as well as from comparisons of dyslexic and nondyslexic readers is offered. (Author/DB)

In response to Coles (EC 220 146) the author outlines points of agreement and identifies points of divergence including Coles' confusion of ordinary poor reading with true dyslexia, the role of phonological processes, and philosophy of science issues concerning Coles' alternative interactivity theory. (DB)

The paper develops the phonological-core variable difference model to conceptualize differences between dyslexic and other poor readers. The model highlights the importance of viewing the concept of dyslexia as the outcome of the application of an arbitrary criterion in a continuous distribution. (Author/DB)

Reviews three sorts of converging evidence regarding dyslexic children's phonological processing difficulties: data from studies of spoken language impairments in dyslexic readers, evidence from the analysis of dyslexic reading and spelling skills, and evidence of phonological deficits that vary in severity and extent across the life-span in…

This review of the literature on laterality research concludes that, despite advances in the classification accuracy of laterality methods, definitive conclusions about hemispheric specialization in individual cases of dyslexic children cannot be drawn. Event-related measurements of cerebral metabolism promise to complement but not replace…

This study, involving 10 adults with dyslexia and 11 controls, found that controls differentiated between real and false traffic signs better than subjects did and that there was a significant correlation between traffic sign recognition and driving experience for controls but not for subjects. Results are interpreted in terms of a deficit in…

Investigates whether dyslexic and "garden variety" poor readers differ in reading-related cognitive skills. Suggests grounds for believing that dyslexia is a separate entity from garden variety poor reading. Finds support for the phonological-core variable-difference model of K. Stanovich in that both dyslexic and poor readers showed phonological…