Suppose someone has a genetic defect that prevents the formation of horizontal cells in the retina. Which visual phenomenon is most likely to be impaired?
A) Lateral inhibition
B) Movement perception
C) Dark adaptation
D) Size constancy

Question

Quizplus · Accepted Answer

Horizontal cells are responsible for lateral inhibition in the retina, which allows for the sharpening of contrasts and the enhancement of edges in visual perception. Without horizontal cells, this process would be impaired, leading to a reduction in visual acuity and image contrast. Thus, the most likely visual phenomenon to be impaired in this scenario is lateral inhibition. Movement perception, dark adaptation, and size constancy do not directly involve horizontal cells and are less likely to be affected by their absence.

Suppose Someone Has a Genetic Defect That Prevents the Formation