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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 31, Iss. 4 — Apr. 1, 2014
  • pp: A15–A22

Physiological correlates of watercolor effect

Andrew J. Coia, Christopher Jones, Chad S. Duncan, and Michael A. Crognale  »View Author Affiliations


JOSA A, Vol. 31, Issue 4, pp. A15-A22 (2014)
http://dx.doi.org/10.1364/JOSAA.31.000A15


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Abstract

The watercolor effect is a visual illusion that manifests itself as a combination of long-range color spreading and figure–ground organization. The current study uses behavioral and physiological measures to study the watercolor effect. We utilize a novel technique of measuring the cortical response of the illusion using the visual evoked potential (VEP). To this end, three experiments were done to investigate the contributions of luminance and hue to the magnitude of the illusion. Results of both VEP and behavior indicate a marked decrease in the S (yellow) direction in illusion magnitude compared to the +S (blue) illusion, even though these colors were previously matched for perceptual salience.

© 2013 Optical Society of America

OCIS Codes
(330.0330) Vision, color, and visual optics : Vision, color, and visual optics
(330.1720) Vision, color, and visual optics : Color vision
(330.5020) Vision, color, and visual optics : Perception psychology
(330.5380) Vision, color, and visual optics : Physiology
(330.5510) Vision, color, and visual optics : Psychophysics
(330.7310) Vision, color, and visual optics : Vision

ToC Category:
Retinal and cortical color processing

History
Original Manuscript: October 3, 2013
Manuscript Accepted: October 23, 2013
Published: December 19, 2013

Citation
Andrew J. Coia, Christopher Jones, Chad S. Duncan, and Michael A. Crognale, "Physiological correlates of watercolor effect," J. Opt. Soc. Am. A 31, A15-A22 (2014)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-31-4-A15


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