Which CFF law indicates that the high frequency CFF increases as the stimulus area is increased?

The Granit-Harper Law describes the relationship between critical flicker frequency (CFF) and stimulus characteristics, particularly emphasizing that the CFF increases as the stimulus area increases. This law highlights how larger stimuli can activate a greater number of photoreceptors, leading to improved temporal resolution and increased sensitivity to flickering light. This effect can be attributed to the way the visual system processes more extensive visual information, enhancing our ability to detect flickering due to the sum of signals received from a larger area of the retina.

Understanding the Granit-Harper Law is essential for comprehending how visual perception is influenced by stimulus size, and it is foundational in the study of visual processing and temporal acuity.