Document Detail

Structural constraints: further evidence from apparent motion in depth.
MedLine Citation:
PMID:  8316519     Owner:  NLM     Status:  MEDLINE    
The three-dimensional (3-D) apparent motion of lines, outline triangles, and light points was studied in four experiments. The stimulus sequences were beginning and end patterns of 3-D motions of a line and a triangle. Light-point patterns corresponded to the ends of the lines and the vertices of the triangles. Perceived motion of lines and light-point pairs resembled the distal motions that were used to construct the proximal patterns. The correspondence was striking for configurations that appeared to move in depth. Outline triangles and light-point triplets produced a strong correspondence between distal and perceived motions when the three sides appeared to be translating in depth. The correspondence was reasonably good for the other motion patterns when scoring included an appropriate second category. The results support the conception of structural or internalized constraints: light points were processed as if they were connected (unity constraint) and proximal change in linear size (or distance between light points) was perceived as rigid 3-D motion (rigidity constraint).
M Hershenson
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Perception     Volume:  22     ISSN:  0301-0066     ISO Abbreviation:  Perception     Publication Date:  1993  
Date Detail:
Created Date:  1993-07-28     Completed Date:  1993-07-28     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0372307     Medline TA:  Perception     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  323-34     Citation Subset:  IM    
Department of Psychology, Brandeis University, Waltham, MA 02254.
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MeSH Terms
Depth Perception*
Discrimination Learning
Motion Perception*
Optical Illusions*
Pattern Recognition, Visual*

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

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