| Mesopic rod and S-cone interactions revealed by modulation thresholds. | |
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MedLine Citation:
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PMID: 22330378 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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We analyzed mesopic rod and S-cone interactions in terms of their contributions to the blue-yellow opponent pathway. Stimuli were generated using a four-primary colorimeter. Mixed rod and S-cone modulation thresholds (constant L-, M-cone excitation) were measured as a function of their phase difference. Modulation amplitude was equated using threshold units and contrast ratios. This study identified three interaction types: (1) a linear and antagonistic rod:S-cone interaction, (2) probability summation, and (3) a previously unidentified mutual nonlinear reinforcement. Linear rod:S-cone interactions occur within the blue-yellow opponent pathway. Probability summation involves signaling by different postreceptoral pathways. The origin of the nonlinear reinforcement is possibly at the photoreceptors. |
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Authors:
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Andrew J Zele; Jan Kremers; Beatrix Feigl |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of the Optical Society of America. A, Optics, image science, and vision Volume: 29 ISSN: 1520-8532 ISO Abbreviation: J Opt Soc Am A Opt Image Sci Vis Publication Date: 2012 Feb |
Date Detail:
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Created Date: 2012-02-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9800943 Medline TA: J Opt Soc Am A Opt Image Sci Vis Country: United States |
Other Details:
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Languages: eng Pagination: A19-26 Citation Subset: IM |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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