| Spatial-frequency-contingent color aftereffects: adaptation with one-dimensional stimuli. | |
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MedLine Citation:
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PMID: 1549425 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The McCollough effect was shown to be spatial-frequency selective by Lovegrove and Over (1972) after adaptation with vertical colored square-wave gratings separated by 1 octave. Adaptation with slide-presented red and green vertical square-wave gratings separated by 1 octave failed to produce contingent color aftereffects (CAEs). However, when each of these gratings was adapted alone, strong CAEs were produced. Adaptation with vertical colored sine-wave gratings separated by 1 octave also failed to produce CAEs, but strong effects were produced by adaptation with each grating alone. By varying the spatial frequency of the test sine wave, CAEs were found to be tuned for spatial frequency at 2.85 octaves after adaptation of 4 cycles per degree (cpd) and at 2.30 octaves after adaptation of 8 cpd. Adaptation of both vertical and horizontal sine-wave gratings produced strong CAEs, with bandwidths ranging from 1.96 to 2.90 octaves and with lower adapting contrast producing weaker CAEs. These results indicate that the McCollough effect is more broadly tuned for spatial frequency than are simple adaptation effects. |
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Authors:
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R H Day; W R Webster; O Gillies; B Crassini |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Perception & psychophysics Volume: 51 ISSN: 0031-5117 ISO Abbreviation: Percept Psychophys Publication Date: 1992 Jan |
Date Detail:
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Created Date: 1992-04-21 Completed Date: 1992-04-21 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0200445 Medline TA: Percept Psychophys Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 57-65 Citation Subset: C |
Affiliation:
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Monash University, Clayton, Victoria, Australia. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adaptation, Ocular* Adult Color Perception* Figural Aftereffect* Humans Optical Illusions* Orientation* Pattern Recognition, Visual* Psychophysics Sensory Thresholds |
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