Mesopic rod and S-cone interactions revealed by modulation thresholds
Zele, Andrew J., Kremers, Jan, & Feigl, Beatrix (2012) Mesopic rod and S-cone interactions revealed by modulation thresholds. Journal of the Optical Society of America A : Optics, Image Science & Vision, 29(2), A19-A26.
We analyzed mesopic rod and S-cone interactions in terms of their contributions to the blue-yellow opponent pathway. Stimuli were generated using a 4-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 (3) and a previously unidentified mutual nonlinear reinforcement.
Linear rod:S-cone interactions occur within the blue-yellow opponent pathway. Probability summation involves signaling by different post-receptoral pathways. The origin of the nonlinear reinforcement is possibly at the photoreceptors.
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|Item Type:||Journal Article|
|Keywords:||mesopic, temporal, rod, s-cone, summation, color|
|Subjects:||Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300)|
|Divisions:||Current > Schools > School of Biomedical Sciences
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Optometry & Vision Science
|Copyright Owner:||Copyright 2012 Optical Society of America|
|Copyright Statement:||This paper was published in Journal of the Optical Society of America A: Optics, Image Science & Vision and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/josaa/abstract.cfm?uri=josaa-29-2-A19. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.|
|Deposited On:||13 Nov 2012 00:11|
|Last Modified:||03 Oct 2014 04:13|
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