John has more difficulty hitting baseballs that are pitched to him than his classmates do because he was born blind in his right eye.His difficulty can best be attributed to his lack of the depth cue known as
A) proximity.
B) interposition.
C) retinal disparity.
D) linear perspective.

Question

Quizplus · Accepted Answer

Retinal disparity is the difference in the images that each eye perceives when looking at an object from slightly different angles. This difference allows the brain to perceive depth and position of objects in the environment. Since John was born blind in his right eye, he may not be able to pick up on this cue, making it more difficult for him to judge the distance and trajectory of a baseball.

John Has More Difficulty Hitting Baseballs That Are Pitched to Him