This study examined the relation between the performance in a visual search task and reading ability in 92 third-grade Hong Kong Chinese children. The visual search task, which is considered a measure of visual-spatial attention, accounted for unique variance in Chinese character reading after controlling for age, nonverbal intelligence,…

Visual stress (the experience of visual distortions and discomfort during prolonged reading) is frequently identified and alleviated with coloured overlays or lenses. Previous studies have associated visual stress with dyslexia and as a consequence, coloured overlays are widely distributed to children and adults with reading difficulty. However,…

In this study of the project DyAdd, three aspects of visual attention were investigated in adults (18-55 years) with dyslexia (n = 35) or attention deficit/hyperactivity disorder (ADHD, n = 22), and in healthy controls (n = 35). Temporal characteristics of visual attention were assessed with Attentional Blink (AB), capacity of visual attention…

Previous studies of visually symptomatic dyslexics have found that their contrast thresholds for pattern discrimination are the same as non-dyslexics. However, when noise is added to the stimuli, contrast thresholds rise markedly in dyslexics compared with non-dyslexics. This result could be due to impaired noise exclusion in dyslexics. Some…

Previous research suggests a relationship between spatial attention and phonological decoding in developmental dyslexia. The aim of this study was to examine differences between good and poor phonological decoders in the allocation of spatial attention to global and local levels of hierarchical stimuli. A further aim was to investigate the…

A study involving 48 undergraduates found a link between motion detection and letter-position encoding and a positive relationship, albeit a nonlinear one, between motion detection threshold and the likelihood of making letter errors. This result held when age, IQ, reading age, and phonological awareness were taken into account. (CR)

Spatial and temporal matching abilities of normal and disabled readers were investigated. Average and dyseidetic readers were better able than dysphonetic and alexic readers to match purely temporal information. Dysphonetic and alexic readers demonstrated greater difficulty with temporal rather than spatial information. The existence of memory and…

Reports on a study that investigated the span of letter recognition (the region of text from which letter information is used during a fixation) for good and poor fifth-grade readers during a reading task. (HOD)

The relationship of eye movements while watching television to reading ability, cognitive style, and mode of presentation was studied using as subjects 85 third-grade children who had been classified as good or poor readers by scores on the Gates-MacGinitie Reading Test; their cognitive style was measured by the Children's Embedded Figures which…

To investigate underlying learning mechanisms in relation to the development of dyslexia, event-related potentials to visual standards were recorded in five-year-old pre-reading children at-risk for familial dyslexia (n=24) and their controls (n=14). At the end of second grade the children aged 8 years were regrouped into three groups according to…

A study investigated whether a visual selective attention deficit with its presumed basis in slow visual processing referred to the same phonological recoding deficit, or whether they were two independent sources of reading disability. Subjects were children aged 7 to 15 referred to a university clinic (the Waterloo Child Assessment…

Research on reading has tried, and failed, to account for wide disparities in reading skill even among children taught by the same method. Why do some children learn to read easily and quickly while others, in the same classroom and taught by the same teacher, don't learn to read at all? In "Language Development and Learning to Read", Diane…