Can the magnocellular pathway read? Evidence from studies of color

Chase, C., Ashourzadeh, A., Kelly, C., Monfette, S. and Kinsey, K. (2003) Can the magnocellular pathway read? Evidence from studies of color. Vision Research, 43 (10). pp. 1211-22. ISSN 00472-6989

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Publisher's URL: http://dx.doi.org/10.1016/S0042-6989(03)00085-3

Abstract

A review of the neurophysiological literature suggests that the magnocellular pathway has adequate spatial-frequency and contrast sensitivity to perceive text under normal contrast conditions (>10%) and also is suppressed by red light. Results from three experiments involving color and reading show that red light impairs reading performance under normal luminance contrast conditions. However in a fourth experiment, isoluminant color text, designed to selectively activate the parvocellular pathway, is easier to read under red light. These discrepant results suggest that the magnocellular pathway is the dominant visual pathway for text perception. Implications for reading models and developmental dyslexia are discussed.

Item Type:Article
Uncontrolled Keywords:reading, word recognition, dyslexia
Faculty/Department:Faculty of Health and Applied Sciences > Department of Health and Social Sciences
ID Code:8195
Deposited By: Dr K. Kinsey
Deposited On:07 Jul 2010 11:01
Last Modified:09 Oct 2013 14:17

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