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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. 29, Iss. 2 — Feb. 1, 2012
  • pp: A128–A132

Feature binding of a continuously changing object

Para Kang and Steven K. Shevell  »View Author Affiliations


JOSA A, Vol. 29, Issue 2, pp. A128-A132 (2012)
http://dx.doi.org/10.1364/JOSAA.29.00A128


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Abstract

Consider a feature of a stimulus (such as color, luminance, or spatial frequency) that changes over time along a continuum. When a second stimulus is briefly pulsed with the same feature value as the first stimulus, the two stimuli are not perceived to match. Instead, the continuously changing stimulus is perceived to be further ahead on the feature continuum than the pulsed stimulus [Nat. Neurosci. 3, 489 (2000)]. This shift is quantified by the amount of time ahead on the changing continuum, which is different for various types of features. A basic question is how our percepts are affected when an object has two continuously changing features (such as color and orientation) with different magnitudes of time ahead. This was addressed using a bar continuously changing in both color and orientation. Even though the two features were part of the same object, each feature maintained a distinctly different time ahead. This implies that observers perceived at each moment a combination of color and orientation that never was presented to the eye.

© 2012 Optical Society of America

OCIS Codes
(330.0330) Vision, color, and visual optics : Vision, color, and visual optics
(330.1690) Vision, color, and visual optics : Color
(330.1720) Vision, color, and visual optics : Color vision
(330.5020) Vision, color, and visual optics : Perception psychology
(330.5510) Vision, color, and visual optics : Psychophysics
(330.7310) Vision, color, and visual optics : Vision

ToC Category:
Color sensitivity and appearance

History
Original Manuscript: September 6, 2011
Revised Manuscript: November 19, 2011
Manuscript Accepted: November 21, 2011
Published: January 19, 2012

Virtual Issues
Vol. 7, Iss. 4 Virtual Journal for Biomedical Optics

Citation
Para Kang and Steven K. Shevell, "Feature binding of a continuously changing object," J. Opt. Soc. Am. A 29, A128-A132 (2012)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-29-2-A128

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