Rod contributions to color perception : linear with rod contrast
Cao, Dingcai, Pokorny, Joel, Smith, Vivianne C., & Zele, Andrew (2008) Rod contributions to color perception : linear with rod contrast. Vision Research, 48(26), pp. 2586-2592.
At mesopic light levels, an incremental change in rod activation causes changes in color appearance. In this study, we investigated how rod mediated changes in color perception varied as a function of the magnitude of the rod contrast. Rod-mediated changes in color appearance were assessed by matching them with cone-mediated color changes. A two-channel four-primary colorimeter allowed independent control of the rods and each of the L-, M- and S-cone photoreceptor types. At all light levels, rod contributions to inferred PC, KC and MC pathway mediated vision were linearly related to the rod incremental contrast. This linear relationship could be described by a model based on primate ganglion cell responses with the assumption that rod signals were conveyed via rod–cone gap junctions at mesopic light levels.
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|Item Type:||Journal Article|
|Keywords:||Rods, Cones, Rod perception, Colour vision, Rod contrast|
|Subjects:||Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300) > Vision Science (111303)|
|Divisions:||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 © 2008 Elsevier Ltd|
|Deposited On:||28 Apr 2009 07:59|
|Last Modified:||13 Nov 2012 08:35|
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