As a butterfly approached Tahir, he tracked its proximity as his eyes converged inward toward his nose, relying on the depth cue of:
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Answer: D. Convergence
Explanation
Convergence requires eye muscles to turn inward when tracking objects moving closer. Binocular depth cues utilize muscle tension information to judge relative object distances. Tahir experienced physical inward eye movement as the butterfly approached his face. Depth perception relies on both binocular cues and monocular pictorial depth indicators. Convergence provides strong neural feedback for objects located within close proximity. Retinal disparity is another binocular cue comparing slightly different images from each eye.
Virtual reality headsets manipulate convergence cues to create convincing three-dimensional visual depths. Optometrists assess eye convergence abilities during routine binocular vision health evaluations. Artists simulate depth on flat canvases using monocular cues rather than binocular convergence. Relative size is a monocular cue where smaller retinal images appear further away. Accommodation involves the lens changing shape to focus images on the retina. Depth perception is the overarching general category rather than the specific muscular cue.
- Subject
- Psychology
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- Psychology
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- —
- Difficulty
- medium
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