In general, illusions, such as these, are produced by

A) habitual eye movements and continuity.
B) perceptual habits.
C) size and shape constancy.
D) all of these combined.

Question

In general, illusions, such as these, are produced by

A) habitual eye movements and continuity. 
B) perceptual habits. 
C) size and shape constancy. 
D) all of these combined.

Quizplus · Accepted Answer

Illusions such as these are often produced by a combination of habitual eye movements and continuity, perceptual habits, as well as size and shape constancy. Therefore, the best choice is D which includes all of these factors combined.

In General, Illusions, Such as These, Are Produced by