Question

Retinotopy and foveal expansion: Visual space in the cortex is not evenly proportional to the space of the retina but rather to ________________ across different regions of the retina.

a) Ganglion cell density

b) Rod and cone distribution

c) Optic nerve thickness

d) Pupil size

Answer 1

Visual space in the cortex is not evenly proportional to the space of the retina but rather to ganglion cell density across different regions of the retina.

Step-by-step explanation:

Visual space in the cortex is not evenly proportional to the space of the retina but rather to ganglion cell density across different regions of the retina. The fovea, which is the region responsible for acute vision, has a high density of cones. Cones provide high visual acuity, while rods, which are located in the periphery of the retina, are more sensitive to low light conditions. As one moves away from the fovea towards the periphery of the retina, several photoreceptors converge on retinal ganglion cells, which reduces visual acuity.