Why do cones exhibit less neuronal convergence than rods?
A) Rods cannot distinguish different colors from each other.
B) Rods do not function in bright light.
C) No images are perceived within the optic disc.
D) Cones do not detect black and white.
E) Photopic vision has higher resolution than scotopic vision.

Question

Quizplus · Accepted Answer

Photopic vision, which is mediated by cones, has higher resolution than scotopic vision, which is mediated by rods. This is because cones are densely packed in the fovea, the area of highest visual acuity, and have less neuronal convergence than rods, meaning that each cone connects to fewer neurons in the visual pathway. In contrast, rods are more sensitive to faint light and are more densely packed in the periphery of the retina, where visual acuity is lower. The other options are not directly related to the question of neuronal convergence between cones and rods.

Why Do Cones Exhibit Less Neuronal Convergence Than Rods