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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

  • Vol. 15, Iss. 8 — Aug. 1, 1998
  • pp: 2046–2051

Relationship between facilitation at threshold and suprathreshold contour integration

Cristyn B. Williams and Robert F. Hess  »View Author Affiliations


JOSA A, Vol. 15, Issue 8, pp. 2046-2051 (1998)
http://dx.doi.org/10.1364/JOSAA.15.002046


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Abstract

We reevaluate the facilitation at threshold previously reported between aligned micropatterns and assess the role of such lateral spatial interactions in suprathreshold contour integration tasks. Contrary to previous claims, we show that these interactions are phase dependent. Furthermore, they are clearly evident only for foveal viewing, are not evident for curved alignments (>20°), and do not produce any suprathreshold consequence for contrast perception. Such findings question their usefulness for contour integration of smoothly curved suprathreshold paths.

© 1998 Optical Society of America

OCIS Codes
(330.1800) Vision, color, and visual optics : Vision - contrast sensitivity
(350.5030) Other areas of optics : Phase

History
Original Manuscript: November 20, 1997
Revised Manuscript: March 25, 1998
Manuscript Accepted: March 26, 1998
Published: August 1, 1998

Citation
Cristyn B. Williams and Robert F. Hess, "Relationship between facilitation at threshold and suprathreshold contour integration," J. Opt. Soc. Am. A 15, 2046-2051 (1998)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-15-8-2046

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