Document Detail


Grouping based on phenomenal similarity of achromatic color.
MedLine Citation:
PMID:  1297981     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
It is widely acknowledged that a precondition for the perception of the world of objects and events is an early process of organization, and it has generally been assumed that such organization is based on the Gestalt laws of grouping. However, the stage at which such grouping occurs, whether early or late, is an empirical question. It is demonstrated in two experiments that grouping by similarity of neutral color is based not on similarity of absolute luminance at the level of the proximal stimulus, but on phenomenal similarity of lightness resulting from the achievement of lightness constancy. An alternative explanation of such grouping based on the equivalence of luminance ratios between elements and background is ruled out by appropriate control conditions.
Authors:
I Rock; R Nijhawan; S Palmer; L Tudor
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Perception     Volume:  21     ISSN:  0301-0066     ISO Abbreviation:  Perception     Publication Date:  1992  
Date Detail:
Created Date:  1993-05-03     Completed Date:  1993-05-03     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0372307     Medline TA:  Perception     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  779-89     Citation Subset:  IM    
Affiliation:
University of California, Berkeley 94720.
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MeSH Terms
Descriptor/Qualifier:
Adult
Color Perception*
Distance Perception
Female
Humans
Male
Perceptual Closure*
Vision, Ocular
Visual Perception*
Grant Support
ID/Acronym/Agency:
MH 00707/MH/NIMH NIH HHS; MH 42573/MH/NIMH NIH HHS; MH 46141/MH/NIMH NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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