Inhibitory influence of unstimulated rods in the human retina: evidence provided by examining cone flicker.
In the parafoveal retina of human observers, cone-mediated sensitivity to flicker decreases as rods become progressively more dark-adapted. This effect is greatest when a rod response to flicker is precluded. These results indicate that rods tonically inhibit cone pathways in the dark.
D003623:Dark Adaptation; D005425:Flicker Fusion / Q000502:physiology; D006801:Humans; D009433:Neural Inhibition; D010786:Photoreceptor Cells / Q000502:physiology*; D012160:Retina / Q000502:physiology*