| Causality attribution biases oculomotor responses. | |
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MedLine Citation:
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PMID: 20685994 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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When viewing one object move after being struck by another, humans perceive that the action of the first object "caused" the motion of the second, not that the two events occurred independently. Although established as a perceptual and linguistic concept, it is not yet known whether the notion of causality exists as a fundamental, preattentional "Gestalt" that can influence predictive motor processes. Therefore, eye movements of human observers were measured while viewing a display in which a launcher impacted a tool to trigger the motion of a second "reaction" target. The reaction target could move either in the direction predicted by transfer of momentum after the collision ("causal") or in a different direction ("noncausal"), with equal probability. Control trials were also performed with identical target motion, either with a 100 ms time delay between the collision and reactive motion, or without the interposed tool. Subjects made significantly more predictive movements (smooth pursuit and saccades) in the causal direction during standard trials, and smooth pursuit latencies were also shorter overall. These trends were reduced or absent in control trials. In addition, pursuit latencies in the noncausal direction were longer during standard trials than during control trials. The results show that causal context has a strong influence on predictive movements. |
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Authors:
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Jeremy Badler; Philippe Lefèvre; Marcus Missal |
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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: The Journal of neuroscience : the official journal of the Society for Neuroscience Volume: 30 ISSN: 1529-2401 ISO Abbreviation: J. Neurosci. Publication Date: 2010 Aug |
Date Detail:
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Created Date: 2010-08-05 Completed Date: 2010-08-24 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8102140 Medline TA: J Neurosci Country: United States |
Other Details:
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Languages: eng Pagination: 10517-25 Citation Subset: IM |
Affiliation:
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Laboratoire de Neurophysiologie, Université Catholique de Louvain, 1200 Brussels, Belgium. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Attention / physiology Eye Movements / physiology* Female Humans Male Motion Perception / physiology* Photic Stimulation Psychomotor Performance / physiology Reaction Time / physiology |
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