Surround modulation in visual cortex can predict border-ownership selectivity: psychophysical study of border-ownership-dependent tilt aftereffect
JOSA A, Vol. 25, Issue 6, pp. 1426-1434 (2008)
http://dx.doi.org/10.1364/JOSAA.25.001426
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Abstract
Recent physiological studies revealed that neurons in the macaque visual cortex encode the direction of a figure along a contour (border ownership, BO). Although their cortical mechanisms have not been clarified, a computational model for BO has suggested that surround modulation in early vision can play an important role. Here we examined psychophysically how the strength of BO-dependent tilt aftereffect (BO-TAE) is modulated by a stimulus outside the adapted location in relation to the strength of surround modulation reported in physiological experiments. The results showed systematic change of the strength of BO-TAE, depending on the difference in orientation and spatial frequency between the bars placed outside and at the adapted location, indicating a crucial role of surround modulation in the neural mechanism underlying BO selectivity.
© 2008 Optical Society of America
OCIS Codes
(330.3790) Vision, color, and visual optics : Low 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
(330.7320) Vision, color, and visual optics : Vision adaptation
ToC Category:
Vision, Color, and Visual Optics
History
Original Manuscript: November 19, 2007
Revised Manuscript: March 20, 2008
Manuscript Accepted: April 7, 2008
Published: May 29, 2008
Virtual Issues
Vol. 3, Iss. 7 Virtual Journal for Biomedical Optics
Citation
Tadashi Sugihara, Yoshihisa Tsuji, and Ko Sakai, "Surround modulation in visual cortex can predict border-ownership selectivity: psychophysical study of border-ownership-dependent tilt aftereffect," J. Opt. Soc. Am. A 25, 1426-1434 (2008)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=josaa-25-6-1426
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