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Motion/Pursuit Law in 2D (Visual Depth Perception 3)

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This Demonstration computes the motion/pursuit law in the two-dimensional horizontal fixation plane of the eyes. The observer is looking mainly at F on the vertical axis, but also sees D as he translates to the right at speed equal to the interocular distance per second.

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We do not know a theoretical explanation for the rough approximation of the peak motion pursuit law by the 2D relative distance, but this Demonstration compares , , and the 2D signed relative distance, . It also lets you vary time and compare the motion/pursuit law at other times. You can drag the distractor point and the fixate distance is variable.

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Contributed by: Keith Stroyan (March 2011)
Open content licensed under CC BY-NC-SA

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