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Colored filters improve exclusion of perceptual noise in visually symptomatic dyslexics

Nadia Northway¹, Velitchko Manahilov¹ & William A. Simpson²

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1. Department of Vision Sciences, Glasgow Caledonian University
2. School of Psychology, University of Plymouth

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Date:

Received 27 March 2008 13:05 UTC; Posted 27 March 2008

Subjects:

Neuroscience

Tags:

• visual noise
• colored filters
• Vision
• dyslexia

Abstract:

Dyslexic individuals have deficits in detecting visual stimuli embedded in high levels of perceptual noise. Here we show that visually symptomatic dyslexics, who otherwise had elevated contrast thresholds for discriminating symbols in visual noise, had thresholds similar to non-dyslexics when wearing colored filters. These findings provide evidence that colored filters, which minimize the visual distortions and discomfort of dyslexics when reading, improve dyslexics’ noise exclusion to normal levels.

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This document is licensed to the public under the Creative Commons Attribution 3.0 License

How to cite this document:

Northway, Nadia, Manahilov, Velitchko, and Simpson, William. Colored filters improve exclusion of perceptual noise in visually symptomatic dyslexics. Available from Nature Precedings <http://hdl.handle.net/10101/npre.2008.1729.1> (2008)

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