December 2008
Volume 8, Issue 17
Free
OSA Fall Vision Meeting Abstract  |   December 2008
Interocular suppression selectively affects achromatic and chromatic pathways
Author Affiliations
  • Sang Wook Hong
    Dept. Psychology, Vanderbilt University, Nashville, TN, USA
  • Randolph Blake
    Dept. Psychology, Vanderbilt University, Nashville, TN, USA
Journal of Vision December 2008, Vol.8, 13. doi:10.1167/8.17.13
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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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Abstract

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.

Hong, S. W. Blake, R. (2008). Interocular suppression selectively affects achromatic and chromatic pathways [Abstract]. Journal of Vision, 8(17):13, 13a, http://journalofvision.org/8/17/13/, doi:10.1167/8.17.13. [CrossRef]
Footnotes
 Supported by EY13358.
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