Document Detail

The paradoxical moon illusions.
MedLine Citation:
PMID:  7367178     Owner:  NLM     Status:  MEDLINE    
An adaptation theory of visual space is developed and applied to the data of a variety of studies of visual space perception. By distinguishing between the perceived distance of an object and that of the background or sky, the theory resolves the paradox of the moon illusions and relates both perceived size and perceived distance of the moon to the absolute level of spatial adaptation. The theory assumes that visual space expands or contracts in adjustment to changes in the sensory indicators of depth and provides a measure, A, of this adaptation-level. Changes in A have two effects--one on perceived size, one on perceived distance. Since A varies systematically as a function of angle of regard, availability of cues, and the total space-value, A is a measure of the moon illusions, and a practical index of individual differences by pilots and astronauts in the perception of the size and distance of objects on the ground and in the air.
A S Gilinsky
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Perceptual and motor skills     Volume:  50     ISSN:  0031-5125     ISO Abbreviation:  Percept Mot Skills     Publication Date:  1980 Feb 
Date Detail:
Created Date:  1980-06-16     Completed Date:  1980-06-16     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0401131     Medline TA:  Percept Mot Skills     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  271-83     Citation Subset:  IM; S    
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MeSH Terms
Distance Perception / physiology
Optical Illusions*
Orientation / physiology
Retina / physiology
Size Perception / physiology
Space Perception / physiology*
Visual Perception / physiology*

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