Document Detail

Two competing mechanisms underlying neon color spreading, visual phantoms and grating induction.
MedLine Citation:
PMID:  11459592     Owner:  NLM     Status:  MEDLINE    
Neon color spreading is closely related to the photopic visual phantom illusion, since these two completion phenomena are characterized by in-phase lightness induction, and the only difference in the stimulus configuration is the difference in the inducer height. This idea was supported by the present study. Neon color spreading showed almost the same function of critical spatial frequency as photopic visual phantoms (Experiment 1), and the critical spatial frequency was constant as the inducer height was changed (Experiment 2). We also examined the relationship between neon color spreading and grating induction (characterized by counterphase lightness induction) in critical spatial frequency (Experiment 3) and in magnitudes of lightness induction (Experiment 4) as a function of the inducer height. The inducer height at which in-phase (neon color spreading) appearance gave way to counterphase (grating) induction was approximately 0.1 deg. These results suggest that neon color spreading shares a common neural mechanism with the photopic visual phantom illusion and that this mechanism is different from, and competes with, the mechanism of grating induction.
A Kitaoka; J Gyoba; H Kawabata; K Sakurai
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Vision research     Volume:  41     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  2001 Aug 
Date Detail:
Created Date:  2001-07-18     Completed Date:  2001-09-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  2347-54     Citation Subset:  IM    
Department of Behavioral Physiology, Tokyo Metropolitan Institute for Neuroscience, Musashidai, Fuchu, 183-8526, Tokyo, Japan.
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MeSH Terms
Color Perception / physiology*
Orientation / physiology
Perceptual Closure / physiology*
Visual Pathways / physiology*

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