After you stare at a pattern of narrow lines long enough to fatigue certain feature detectors, you now stare at slightly wider lines. How will your perception of those lines differ from your usual perception of them?

Question

Quizplus · Accepted Answer

Fatiguing the feature detectors for narrow lines causes an aftereffect where wider lines appear even wider than they actually are. This is known as the width-contrast illusion.

After You Stare at a Pattern of Narrow Lines Long