While camping, Alicia and Seth saw a bright light in the distance on a very dark night. After watching it for a few moments, it suddenly began to move. If they looked away and then looked back, it appeared to hover in one spot, then start moving again. They told their friends they had seen a UFO. Really, they had been fooled by _____
A)stroboscopic motion.
B)the motion parallax.
C)the autokinetic illusion.
D)the principle of continuity.

Question

Quizplus · Accepted Answer

The autokinetic illusion occurs when an object appears to move because there is no stable reference point the brain can use to determine whether it is our eyes moving or the object moving.

While Camping, Alicia and Seth Saw a Bright Light in the Distance