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Listing's law, however, does not account for all cyclorotations. In particular, in the presence of cyclodisparity (that is, when two images are presented which would need to be rotated in relation to each other in order to allow visual fusion to take place), the eyes perform cyclovergence, rotating around their gaze directions in opposite directions, as a motor response to cyclodisparity.
The motion aftereffect (MAE) is a visual illusion experienced after viewing a moving visual stimulus for a time (tens of milliseconds to minutes) with stationary eyes, and then fixating a stationary stimulus. The stationary stimulus appears to move in the opposite direction to the original (physically moving) stimulus.
Stroboscopic effect may lead to unsafe situations in workplaces with fast moving or rotating machinery. If the frequency of fast rotating machinery or moving parts coincides with the frequency, or multiples of the frequency , of the light modulation, the machinery can appear to be stationary, or to move with another speed, potentially leading ...
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Eye movement can be classified according to two systems: the involvement of one or both eyes; involving one eye they may be classified as duction, and both eyes either version, if moving in the same direction, or vergence, if moving in opposite directions. [9] [10] fixational, gaze-stabilizing, or gaze-shifting.
A rocking horse is a child's toy, usually shaped like a horse and mounted on rockers similar to a rocking chair. There are two sorts, the one where the horse part sits rigidly attached to a pair of curved rockers that are in contact with the ground, and a second sort, where the horse hangs on a rigid frame by iron straps the horse moves only ...
In 1988, the artist and her lover trekked from opposite ends of the Chinese landmark and met in the middle. Her new exhibition revisits the epic 90-day performance.
At a certain speed the sets of spokes appear to slow and rotate in opposite directions. The wagon-wheel effect (alternatively called stagecoach-wheel effect ) is an optical illusion in which a spoked wheel appears to rotate differently from its true rotation.