Spatial frequency is measured by:
A) the distance the stimulus falls from the retina
B) the amplitude of the component sine waves
C) the number of cycles in each degree of visual angle
D) the number of component sine wave gratings

Question

Quizplus · Accepted Answer

Spatial frequency refers to the number of cycles (repetitions of a pattern) per degree of visual angle. It is measured in cycles per degree (cpd). Choice A is incorrect because it refers to the stimulus' distance from the retina, not spatial frequency. Choice B is incorrect because while amplitude can affect the overall contrast of the stimulus, it does not determine the spatial frequency. Choice D is incorrect because it is not relevant to measuring spatial frequency.

Spatial Frequency Is Measured By