what are the 2 ways the visual system has of detecting motion related to?
Added by Nicholas H.
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Step 1: Identify that motion can be detected either by motion of objects themselves or by motion of the observer causing the whole image to move on the retina. Show more…
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Watch this video (http://openstaxcollege.org/I/I_3-D1) to learn more about how the brain perceives 3 -D motion. Similar to how retinal disparity offers 3 -D moviegoers a way to extract 3-D information from the two-dimensional visual field projected onto the retina, the brain can extract information about movement in space by comparing what the two eyes see. If movement of a visual stimulus is leftward in one eye and rightward in the opposite eye, the brain interprets this as movement toward (or away) from the face along the midline. If both eyes see an object moving in the same direction, but at different rates, what would that mean for spatial movement?
Watch this video (Links to an external site.) to learn more about how the brain perceives 3-D motion. Similar to how retinal disparity offers 3-D moviegoers a way to extract 3-D information from the two-dimensional visual field projected onto the retina, the brain can extract information about movement in space by comparing what the two eyes see. If movement of a visual stimulus is leftward in one eye and rightward in the opposite eye, the brain interprets this as movement toward (or away) from the face along the midline. Which eye is visualizing leftward stimulus?
Jennifer S.
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