| Adaptation-induced blindness to sluggish stimuli. | |
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MedLine Citation:
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PMID: 20462317 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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It is well known that prolonged observation of a dynamic visual pattern raises the contrast threshold for a subsequently presented static pattern. We found that if the post-adaptation test was presented gradually, so that its onset transient was weak, the test pattern was undetectable even at high contrast. Although the smooth-onset patterns were invisible, they caused apparent shifts in the orientation and contrast of neighboring stimuli, indicating the implicit processing of the target features. However, this strong aftereffect was not obtained if the target grating drifted rapidly or was onset abruptly. These results suggest that when human observers become less sensitive to transients in stimuli due to dynamic adaptation, they cannot consciously perceive sluggish stimuli containing weak transients. This is consistent with the notion that the visual system cannot prompt a conscious awareness of a single stimulus unless triggered by enough transient or temporally salient signals. |
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Authors:
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Isamu Motoyoshi; Sayuri Hayakawa |
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Publication Detail:
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Type: Journal Article Date: 2010-02-17 |
Journal Detail:
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Title: Journal of vision Volume: 10 ISSN: 1534-7362 ISO Abbreviation: J Vis Publication Date: 2010 |
Date Detail:
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Created Date: 2010-05-13 Completed Date: 2010-08-13 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101147197 Medline TA: J Vis Country: United States |
Other Details:
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Languages: eng Pagination: 16.1-8 Citation Subset: IM |
Affiliation:
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Human and Information Science Lab, NTT Communication Science Labs, NTT, Atsugi, Japan. motoyosi@apollo3.brl.ntt.co.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adaptation, Ocular
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physiology Awareness / physiology Contrast Sensitivity / physiology* Figural Aftereffect / physiology* Humans Illusions / physiology* Pattern Recognition, Visual / physiology* Photic Stimulation / methods Psychophysics Sensory Thresholds / physiology Visual Perception / physiology* |
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