| Perceptual load influences auditory space perception in the ventriloquist aftereffect. | |
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MedLine Citation:
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PMID: 20979992 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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A period of exposure to trains of simultaneous but spatially offset auditory and visual stimuli can induce a temporary shift in the perception of sound location. This phenomenon, known as the 'ventriloquist aftereffect', reflects a realignment of auditory and visual spatial representations such that they approach perceptual alignment despite their physical spatial discordance. Such dynamic changes to sensory representations are likely to underlie the brain's ability to accommodate inter-sensory discordance produced by sensory errors (particularly in sound localization) and variability in sensory transduction. It is currently unknown, however, whether these plastic changes induced by adaptation to spatially disparate inputs occurs automatically or whether they are dependent on selectively attending to the visual or auditory stimuli. Here, we demonstrate that robust auditory spatial aftereffects can be induced even in the presence of a competing visual stimulus. Importantly, we found that when attention is directed to the competing stimuli, the pattern of aftereffects is altered. These results indicate that attention can modulate the ventriloquist aftereffect. |
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Authors:
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Ranmalee Eramudugolla; Marc R Kamke; Salvador Soto-Faraco; Jason B Mattingley |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-10-25 |
Journal Detail:
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Title: Cognition Volume: 118 ISSN: 1873-7838 ISO Abbreviation: Cognition Publication Date: 2011 Jan |
Date Detail:
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Created Date: 2010-12-06 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0367541 Medline TA: Cognition Country: Netherlands |
Other Details:
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Languages: eng Pagination: 62-74 Citation Subset: IM |
Copyright Information:
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Copyright © 2010 Elsevier B.V. All rights reserved. |
Affiliation:
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The University of Queensland, Queensland Brain Institute and School of Psychology, QLD 4072, Australia. r.eramudugolla@uq.edu.au |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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