Document Detail

On the microgenesis of illusory figures: a failure to replicate.
MedLine Citation:
PMID:  7845775     Owner:  NLM     Status:  MEDLINE    
Reynolds found in 1981 that with increased viewing time of a pattern which may or may not produce illusory contours there were: first, reports of the pattern without an illusory figure; then, at longer exposures, an increase in the frequency with which illusory figures were reported; and then, with still longer exposures, a decrease in such reports if the pattern contained elements which tended to contradict the possibility of such a figure. Unfortunately, however, three attempts to replicate these potentially very important findings--with the aid of substantially improved methodology--consistently failed to do so. It is suggested that this failure, although it is disappointing to those who subscribe to a 'problem solving' explanation of illusory contours, may not constitute a strong refutation of such a theory. Regardless, the purpose in the report is to clarify and rectify the published record concerning this part of the evidential underpinnings of that theory.
T E Parks
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Perception     Volume:  23     ISSN:  0301-0066     ISO Abbreviation:  Perception     Publication Date:  1994  
Date Detail:
Created Date:  1995-03-08     Completed Date:  1995-03-08     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0372307     Medline TA:  Perception     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  857-62     Citation Subset:  IM    
University of California, Davis 95616-8686.
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MeSH Terms
Optical Illusions*
Pattern Recognition, Visual*
Problem Solving
Reaction Time*

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

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