Document Detail


Revisitation of the luminance conditions for the occurrence of the achromatic neon color spreading illusion.
MedLine Citation:
PMID:  8351188     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This paper develops the idea (Bressan, 1993) that neon spreading derives from the perceptual scissioning of ordinary assimilation color, a process identical to that occurring with nonillusory colors in phenomenal transparency. It is commonly held that the critical elements in achromatic neon spreading patterns must be of luminance intermediate between that of the embedding lines and of the background. The interpretation of neon spreading on the basis of color scissioning, however, predicts that neon spreading should also be observed for different luminance hierarchies, provided that these are compatible with transparency. This prediction found experimental support in the present work. The results suggest that (1) the widespread notion that chromatic and achromatic neon spreading must be mediated by separate mechanisms is unwarranted; (2) the widespread notion that color spreading in ordinary assimilation patterns and color spreading in neon patterns must be mediated by separate mechanisms is unwarranted; and (3) other than pointing to the way in which the overall organization of a scene affects the mode of color appearance, the neon spreading effect may not convey any extra theoretical relevance.
Authors:
P Bressan
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Perception & psychophysics     Volume:  54     ISSN:  0031-5117     ISO Abbreviation:  Percept Psychophys     Publication Date:  1993 Jul 
Date Detail:
Created Date:  1993-09-16     Completed Date:  1993-09-16     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0200445     Medline TA:  Percept Psychophys     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  55-64     Citation Subset:  C    
Affiliation:
Dipartimento di Psicologia Generale, Università di Padova, Italy.
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MeSH Terms
Descriptor/Qualifier:
Attention
Color Perception*
Discrimination Learning
Humans
Light*
Optical Illusions*
Orientation
Pattern Recognition, Visual*
Psychophysics

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