As Pippa threads a needle, her eyes rotate inward.She knows the needle is close enough to perform the task by virtue of the depth cue termed
A)convergence.
B)binocular disparity.
C)occlusion.
D)parallax.

Question

Quizplus · Accepted Answer

Convergence is the depth cue that refers to the inward movement of the eyes as an object moves closer, allowing the visual system to judge the depth of the object. As Pippa threads a needle, her eyes rotate inward due to convergence as the needle gets closer to her eyes, helping her determine the distance and accurately thread the needle. Binocular disparity, occlusion, and parallax are other depth cues but are not directly relevant to Pippa's task of threading a needle.

As Pippa Threads a Needle, Her Eyes Rotate Inward