Christopher is looking at a lighted sign on which a rapid succession of a row of lit bulbs appears as a "moving" arrow pointing toward a store. This visual effect is called ________.

Question

Quizplus · Accepted Answer

The visual effect where a rapid succession of images (or in this case, lit bulbs) appears to be moving, even though it's actually stationary, is known as apparent motion. This phenomenon tricks the brain into perceiving motion where there is none, which is exactly what's happening with the lighted sign Christopher is observing.

Christopher Is Looking at a Lighted Sign on Which a Rapid