Document Detail

On the loss of apparent motion between isolated chromatic stimuli near isoluminance.
MedLine Citation:
PMID:  8506636     Owner:  NLM     Status:  MEDLINE    
Long range apparent motion (AM) between two isolated stimuli breaks down following prolonged inspection. Time-till-breakdown (TTB) for AM between random-dot squares (red or green) on a red random-dot background was measured as a function of luminance contrast of the stimuli against the background. For the same-color (red squares on the red background) and the different-color (green squares on the red background) conditions, TTB showed clear dependence on the luminance contrast, diminishing with decreasing the contrast. Near isoluminance (luminance contrast of approx. -14 to +14%), AM for the same-color condition disappeared, but AM for the different-color condition was clearly seen and persisted for 7-14 sec. These results show that AM can be produced by color alone. Previous controversial question on the loss of long range AM near isoluminance may be explained by taking into account the contrast dependence of the breakdown effect and the experimental procedures employed.
Y Ohtani; A Takemoto; T Kaihara; Y Ejima
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Vision research     Volume:  33     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  1993 May 
Date Detail:
Created Date:  1993-07-08     Completed Date:  1993-07-08     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  935-8     Citation Subset:  IM; S    
Department of Liberal Arts and Sciences, Faculty of Engineering, Toyama Prefectural University, Japan.
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MeSH Terms
Color Perception / physiology*
Contrast Sensitivity / physiology
Motion Perception / physiology*
Optical Illusions / physiology*
Pattern Recognition, Visual / physiology
Time Factors

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