This article demonstrates the importance of visual information on depth perception from monocular motion parallax presented at the time of change in the motion direction of head and stimulus movements. In head-tracking systems, a longer delay time between the head and stimulus movements degrades the depth perception from the monocular motion parallax. Because this delay is noticeable at this time, we hypothesized that the visual information given at the time of the direction change plays a critical role in the depth perception from motion parallax. We evaluated depth perception from monocular motion parallax with and without a visual stimulus at the time of the motion direction change to confirm our hypothesis and clarified that stable and unambiguous depth can be perceived by presenting the change of the stimulus motion direction. We also demonstrated that it is the change in motion direction itself that is important rather than the temporal stop between deceleration and acceleration of the stimulus motion.
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Washington Univ, Sch Med, Dept Anat & Neurobiol, St Louis, MO 63110 USAWashington Univ, Sch Med, Dept Anat & Neurobiol, St Louis, MO 63110 USA
Nadler, Jacob W.
Angelaki, Dora E.
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Washington Univ, Sch Med, Dept Anat & Neurobiol, St Louis, MO 63110 USAWashington Univ, Sch Med, Dept Anat & Neurobiol, St Louis, MO 63110 USA
Angelaki, Dora E.
DeAngelis, Gregory C.
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Washington Univ, Sch Med, Dept Anat & Neurobiol, St Louis, MO 63110 USA
Univ Rochester, Dept Brain & Cognit Sci, Rochester, NY 14627 USAWashington Univ, Sch Med, Dept Anat & Neurobiol, St Louis, MO 63110 USA