Document Detail


Size constancy fails below half a degree.
MedLine Citation:
PMID:  7352024     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Size constance is a term used to refer to the fact that objects seem to maintain size as their distance from an observer changes, despite change in image size. It is known that size constancy has limits. People seen from the top of tall buildings look small. By observing objects, including the Moon, and after-images, we demonstrate here that size constancy holds when image size is above half a degree, and breaks down when it is less. In other words, image size is scaled for distance only when image size is above half a degree.
Authors:
J Ross; B Jenkins; J R Johnstone
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Nature     Volume:  283     ISSN:  0028-0836     ISO Abbreviation:  Nature     Publication Date:  1980 Jan 
Date Detail:
Created Date:  1980-03-27     Completed Date:  1980-03-27     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0410462     Medline TA:  Nature     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  473-4     Citation Subset:  IM; S    
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MeSH Terms
Descriptor/Qualifier:
Figural Aftereffect / physiology
Humans
Size Perception / physiology*
Visual Fields*
Visual Perception / physiology*

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


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