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| Research article summary (published 30 Dec 2001): |
Flank transparency: the effects of gaps, line spacing, and apparent motion.
Full Abstract
We analyze the properties of a dynamic color-spreading display created by adding narrow colored flanks to rigidly moving black lines where these lines fall in the interior of a stationary virtual disk. This recently introduced display (Wollschläger et al, 2001 Perception 30 1423-1426) induces the perception of a colored transparent disk bounded by strong illusory contours. It provides a link between the classical neon-color-spreading effect and edge-induced color spreading as discussed by Pinna et al (2001 Vision Research 41 2669-2676). We performed three experiments to quantitatively study (i) the enhancing influence of apparent motion; (ii) the degrading effect of small spatial discontinuities (gaps) between lines and flanks; and (iii) the spatial extent of the color spreading. We interpret the results as due to varying degrees of objecthood of the dynamically specified disk:
increased objecthood leads to increased surface visibility in both contour and color.
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Author information
Author/s: Wollschläger, Daniel (D); Rodriguez, Antonio M (AM); Hoffman, Donald D (DD);
Affiliation: Institut für Psychologie, Christian-Albrechts-Universität zu Kiel, Germany. dwoll(-atsign-)psychologie.uni-kiel.de
Journal and publication information
Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S.
Journal: Perception (Perception), published in England. (Language: eng)
Reference: 2002-; vol 31 (issue 9) : pp 1073-92
Dates: Created 2002/10/11; Completed 2002/11/22; Revised 2006/11/15;
PMID: 12375873, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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