Compared to photopic conditions, in scotopic conditions spatial contrast sensitivity:
A) Peaks at lower spatial frequencies
B) Peaks at higher temporal frequencies
C) Is highest at very low spatial frequencies
D) Is highest at very high temporal frequencies

Question

Quizplus · Accepted Answer

In scotopic conditions, rod cells are primarily responsible for vision and they have higher sensitivity to lower spatial frequencies. Therefore, spatial contrast sensitivity peaks at lower spatial frequencies in scotopic conditions compared to photopic conditions.

Compared to Photopic Conditions, in Scotopic Conditions Spatial Contrast Sensitivity