Evidence for both photopic and scotopic characteristics in the c-wave of chicken and frog ERG.
The electroretinographic c-wave was studied in two species with duplex retinas, the frog (rod-dominant) and the chicken (highly cone-dominant). In both species a cone driven c-wave was recorded in addition to the classical rod-driven c-wave. An attempt was made to specify the differential characteristics with respect to time-course, time integration, adaptational changes and spectral sensitivity of cone-driven vs rod-driven c-waves. These data confirm the generality of the c-wave generation by both rod and cone systems.
D000221:Adaptation, Ocular; D000818:Animals; D002645:Chickens; D003623:Dark Adaptation; D004596:Electroretinography; D010775:Photic Stimulation; D010786:Photoreceptor Cells / Q000502:physiology*; D011896:Rana temporaria; D013997:Time Factors