After you stare at a pattern of narrow black lines for a minute,you now stare at slightly wider lines.How will your perception of those lines differ from your usual perception?
A)They will appear to be narrower than usual.
B)They will appear to be wider than usual.
C)They will appear to be less straight than usual.
D)They will appear to be less dark than usual.

Question

After you stare at a pattern of narrow black lines for a minute,you now stare at slightly wider lines.How will your perception of those lines differ from your usual perception?​
A)They will appear to be narrower than usual.​
B)​They will appear to be wider than usual.
C)​They will appear to be less straight than usual.
D)​They will appear to be less dark than usual.

Quizplus · Accepted Answer

This phenomenon is called the McCollough Effect, which causes afterimages or an altered perception of stimuli after staring at a pattern for an extended period. In this case, staring at narrow black lines for a minute will lead to a perception of wider lines since the brain adapts to the narrowness of the previous pattern. The other answer choices are not related to this phenomenon.

After You Stare at a Pattern of Narrow Black Lines