| Lateral facilitation revealed dichoptically for luminance-modulated and contrast-modulated stimuli. | |
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MedLine Citation:
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PMID: 20800077 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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Foveal detection thresholds for LM and CM Gaussian blobs in the presence of visible, laterally placed blobs (separations of 0-6°) were measured monocularly and dichoptically in observers with normal vision. In the monocular and dichoptic viewing conditions, masking occurs for overlapping blobs, followed by facilitation when they are completely separated (2-8 blob sd units under monocular conditions and 4-12 blob sd units under dichoptic conditions). For LM blobs, facilitation of 24.1±0.07% is demonstrated dichoptically, less than the 57.0±0.06% demonstrated monocularly. For CM blobs, more robust facilitation of 39.0±0.02% is demonstrated dichoptically, slightly more than the 34.6±0.1% demonstrated monocularly. Lateral facilitation is thus not purely a monocular phenomenon. More robust dichoptic facilitation for CM stimuli suggests a more binocular locus for their neural processing. |
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Authors:
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Mohd Izzuddin Hairol; Sarah J Waugh |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-08-25 |
Journal Detail:
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Title: Vision research Volume: 50 ISSN: 1878-5646 ISO Abbreviation: Vision Res. Publication Date: 2010 Nov |
Date Detail:
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Created Date: 2010-11-08 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0417402 Medline TA: Vision Res Country: England |
Other Details:
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Languages: eng Pagination: 2530-42 Citation Subset: IM |
Copyright Information:
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Copyright © 2010 Elsevier Ltd. All rights reserved. |
Affiliation:
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Anglia Vision Research, Department of Vision & Hearing Sciences, Anglia Ruskin University, Cambridge CB1 1PT, UK. izzuddin.hairol@anglia.ac.uk |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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