Because our eyes are set a couple of inches apart, a slightly different image of an object is cast on the retina of each eye. When the two retinal images of an object are very different, we perceive that the object is _____, and when the two retinal images of an object are nearly identical, we perceive that the object is _____.

Question

Quizplus · Accepted Answer

When the two retinal images of an object are very different, our brain perceives it to be farther away, while when the images are nearly identical, the brain perceives it to be closer. This perceptual phenomenon is known as stereopsis, which is the ability of the brain to interpret depth and 3D from the slightly different images projected on each retina. Therefore, option B is the correct answer.

Because Our Eyes Are Set a Couple of Inches Apart