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Color assimilation on grating affected by its apparent stripe width
Author(s) -
Shinoda Hiroyuki,
Ikeda Mitsuo
Publication year - 2004
Publication title -
color research and application
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 62
eISSN - 1520-6378
pISSN - 0361-2317
DOI - 10.1002/col.20005
Subject(s) - grating , assimilation (phonology) , optics , color vision , retinal , perception , vergence (optics) , mathematics , materials science , physics , psychology , ophthalmology , medicine , neuroscience , philosophy , linguistics
The spatial characteristic of color assimilation with a grating was investigated in terms of the perceptual size. Strength of assimilation was assessed on color gratings at several vergence angles without changing the retinal size. The perceived size of the grating was also measured as a function of the vergence angle. Our results showed that the strength of color assimilation was modulated by perceived size. At a larger vergence angle, the perceived size becomes smaller and the appearance of color stripes shifts toward a spatially averaged color, despite no change in retinal size. This spatial characteristic cannot be explained by any retinal processes, suggesting cortical processes of color assimilation. © 2004 Wiley Periodicals, Inc. Col Res Appl, 29, 187–195, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/col.20005