Investigating intermittent stereoscopy: its effects on perception and visual fatigue
Our results suggest a difference between simple scenes (containing few static objects, or slow, linear movement along one axis only), and more complex environments with more diverse movement. In the former case, Stereo @ beginning leads to depth perception which is as accurate as Stereo, and any condition involving S3D leads to more precision than Mono. We posit that the brain might build an initial depth map of the environment, which it keeps using after the suppression of disparity cues. In the case of more complex scenes, Stereo @ end leads to more accurate decisions: the brain might possibly need additional depth cues to reach an accurate decision. Stereo and Stereo @ beginning also significantly decrease response times, suggesting that the presence of disparity cues at task onset boosts the brain’s confidence in its initial evaluation of the environment’s depth map. Our results concerning fatigue, while not definitive, hint at it being proportional to the amount of exposure to S3D stimuli.
Document Type: Research Article
Publication date: February 14, 2016
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