University of Wisconsin Crest - Needs to be Inverted R O K E R S
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University of Wisconsin - Madison
Department of Psychology
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Motion through Depth Demonstration

When the dots are anti-correlated, meaning the dots have opposite contrast in the two eyes, things change. Keep in mind that the display may look a bit 'weird' because of the binocular contrast mismatch. After fusing, it should still be possible to perceive which dots are moving towards and which ones are moving away from you.

However, as soon as you pause the movie, it becomes really hard to see which dots are nearer, and which ones are farther. This shows that the percept of motion through depth does not exclusively rely on static depth (disparity) signals. Apparently it is also sensitive to the difference in dot velocity between the two eyes.





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