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Northway, Nadia; Manahilov, Velitchko; Simpson, William – Journal of Research in Reading, 2010
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…
Descriptors: Reading Rate, Dyslexia, Symptoms (Individual Disorders), Visual Perception