When Bill looks at his lamp alternately with his left eye and right eye, the image seems to jump from one position to another. This phenomenon illustrates ________.
A) the Gestalt principle of similarity
B) binocular disparity
C) interposition
D) the Gestalt principle of proximity

Question

When Bill looks at his lamp alternately with his left eye and right eye, the image seems to jump from one position to another. This phenomenon illustrates ________.
A) the Gestalt principle of similarity
B) binocular disparity 
C) interposition 
D) the Gestalt principle of proximity

Quizplus · Accepted Answer

The phenomenon of the image appearing to jump from one position to another when looking alternately with each eye is due to binocular disparity, which is the difference in the image seen by each eye due to their slightly different positions on the head.

When Bill Looks at His Lamp Alternately with His Left