The center-surround arrangement of visual fields contributes to the eye being
A) an absolute-intensity detector.
B) insensitive at low illumination.
C) a contrast detector.
D) insensitive to low amplitude light waves.

Question

Quizplus · Accepted Answer

The center-surround arrangement of visual fields allows the eye to detect contrast, rather than absolute intensity. The center part of the field responds to the presence of light, while the surrounding area responds to the absence of light. This is why the eye is particularly sensitive to changes in contrast, and not as sensitive to overall brightness.

The Center-Surround Arrangement of Visual Fields Contributes to the Eye