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Sang Wook Hong, Randolph Blake; Interocular suppression selectively affects achromatic and chromatic pathways. Journal of Vision 2008;8(17):13. doi: 10.1167/8.17.13.
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© ARVO (1962-2015); The Authors (2016-present)
Results from a series of psychophysical experiments show that interocular suppression produced by continuous flash suppression (CFS) differentially affects visual features of a target viewed by the other eye. When CFS stimuli are defined by luminance contrast, target color can be reliably identified but percent-correct discrimination of target orientation is near chance. When the colored target is moving, color identification deteriorates with motion speed but direction of motion discrimination improves with target speed. Color's immunity to suppression is also weakened when interocular suppression is induced by equiluminant CFS stimuli that presumably stimulate the chromatic pathway. These results imply that the strong interocular suppression induced by CFS may differentially operate on parvo- and magno-cellular mechanisms depending on the chromatic properties of the stimuli inducing CFS.
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