Rod-Cone Interaction in Human Scotopic Vision
- 25 February 1972
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 175 (4024) , 913-914
- https://doi.org/10.1126/science.175.4024.913
Abstract
Thresholds of a test flash were measured at various time intervals from onset of a conditioning flash under parafoveal scotopic conditions; rods or cones were selectively stimulated by utilizing either 420- or 680-nanometer light. Rod-cone interaction was indicated because conditioning flash presentation increased test threshold above control level for heterochromatic as well as for homochromatic stimulus pairs. The time course of these t.. reshold changes indicates that the rod system has a longer latency than the cone system.Keywords
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