Visual Perception
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B
Bonbo
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NEUROSCIENCE
Visual Perception
Contrast Sensitivity Function
Vision's secret map reveals why some patterns vanish while others pop into focus
3 days ago
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Why does the contrast sensitivity function peak at intermediate spatial frequencies rather than at very fine or very coarse patterns?
Because the human visual system is most sensitive to mid-sized patterns, balancing detail and overall shape detection.
Because the eye cannot detect any patterns finer than intermediate frequencies.
Because absolute luminance, not relative contrast, determines visual sensitivity at all frequencies.
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Stevex
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SCIENCE
Visual Perception
Stereopsis
Stereopsis enhances depth perception by combining two slightly different images from each eye into a vivid 3D experience
2 Feb 2026
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What is the primary visual mechanism that enables stereopsis to create the sensation of depth?
The use of monocular cues like shading and perspective alone
The brain's processing of binocular disparity between the two eyes' images
The movement of the eyes to focus on different objects sequentially
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