| Adaptation aftereffects to facial expressions suppressed from visual awareness. | |
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MedLine Citation:
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PMID: 21047756 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The study of adaptation aftereffects has been used as a tool to investigate the neural events that give rise to face perception. Recent adaptation studies suggest that face processing does not occur outside of awareness since identity- and gender-specific face aftereffects cannot be induced when the adapting face is rendered perceptually invisible using interocular suppression. However there is substantial evidence suggesting that facial expression, unlike identity and gender, is an attribute of faces that may recruit processes that are engaged automatically and independent of observers' awareness and attention. Therefore we investigated whether adaptation aftereffects specific to facial expressions could arise under continuous flash suppression (CFS). Our results show that adaptation to facial expressions is virtually abolished, when faces are suppressed from awareness. Moreover, this loss in aftereffect strength cannot be attributed to contrast adaptation exclusively, since results show only modest changes in perceived contrast following face adaptation. When observers endogenously attend to the location of the suppressed adapting stimulus, expression-specific aftereffects are enhanced. Our findings suggest that neural activity specifying affective information of facial expressions is highly vulnerable to the disruptive effect of interocular suppression, but that allocation of attentional resources can partially counteract suppression's effect. |
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Authors:
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Eunice Yang; Sang-Wook Hong; Randolph Blake |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't Date: 2010-10-22 |
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: 2010-11-04 Completed Date: 2011-02-24 Revised Date: 2011-09-26 |
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: 24 Citation Subset: IM |
Affiliation:
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Vanderbilt Vision Research Center and Department of Psychology, Vanderbilt University, Nashville, TN, USA. eunice.yang@vanderbilt.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adaptation, Physiological
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physiology* Attention / physiology Awareness / physiology* Contrast Sensitivity / physiology Discrimination (Psychology) / physiology Emotions / physiology Face Facial Expression* Figural Aftereffect / physiology* Humans Pattern Recognition, Visual / physiology* Photic Stimulation / methods |
| Grant Support | |
ID/Acronym/Agency:
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5T32 EY007135/EY/NEI NIH HHS; EY13358/EY/NEI NIH HHS; T32 EY007135-15/EY/NEI NIH HHS |
| Comments/Corrections | |
Comment In:
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J Vis. 2011;11(3):10
[PMID:
21398408
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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