1. A computer-implemented method for modifying a perceived depth of an object, the method comprising: for each frame in a sequence of frames, displaying a left image of a stereoscopic image pair a first number of times; and for each frame in the sequence of frames, displaying a right image of the stereoscopic image pair the first number of times, wherein an order of displaying the first number of left images and the first number of right images is randomized within each frame.