| Looking away from faces: influence of high-level visual processes on saccade programming. | |
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MedLine Citation:
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PMID: 20377293 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Human faces capture attention more than other visual stimuli. Here we investigated whether such face-specific biases rely on automatic (involuntary) or voluntary orienting responses. To this end, we used an anti-saccade paradigm, which requires the ability to inhibit a reflexive automatic response and to generate a voluntary saccade in the opposite direction of the stimulus. To control for potential low-level confounds in the eye-movement data, we manipulated the high-level visual properties of the stimuli while normalizing their global low-level visual properties. Eye movements were recorded in 21 participants who performed either pro- or anti-saccades to a face, car, or noise pattern, randomly presented to the left or right of a fixation point. For each trial, a symbolic cue instructed the observer to generate either a pro-saccade or an anti-saccade. We report a significant increase in anti-saccade error rates for faces compared to cars and noise patterns, as well as faster pro-saccades to faces and cars in comparison to noise patterns. These results indicate that human faces induce stronger involuntary orienting responses than other visual objects, i.e., responses that are beyond the control of the observer. Importantly, this involuntary processing cannot be accounted for by global low-level visual factors. |
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Authors:
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Stéphanie M Morand; Marie-Hélène Grosbras; Roberto Caldara; Monika Harvey |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-03-30 |
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: 2010-04-09 Completed Date: 2010-07-12 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: 16.1-10 Citation Subset: IM |
Affiliation:
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Centre for Cognitive Neuroimaging, Department of Psychology, University of Glasgow, Glasgow, UK. s.morand@psy.gla.ac.uk |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Attention / physiology* Face* Female Fixation, Ocular / physiology Form Perception / physiology* Humans Male Orientation / physiology Pattern Recognition, Visual / physiology* Photic Stimulation / methods Reaction Time / physiology Saccades / physiology* Young Adult |
| Grant Support | |
ID/Acronym/Agency:
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//Medical Research Council |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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