Abstract
Two experiments were conducted to assess the effects of corresponding and conflicting binocular and monocular information on the recovery of depth order (signed depth). Subjects viewed displays in which the same or opposite depth orders were indicated by disparity and occlusion, in one experiment, or by disparity and velocity gradients, in a second experiment. The same 36 subjects, 17 who had failed a Random Dot E test and 19 who had passed, were run in both experiments. When binocular and monocular information indicated conflicting depth orders, most subjects responded in accordance with the monocular information on some trials in both experiments. This was true even for a subgroup who always responded in accordance with the stereoscopic information on control trials that did not provide monocular information for depth order. For this subgroup, the impact of conflicting monocular information in the velocity gradient task correlated with performance on the uncrossed version of the Random Dot E test. We also found that some subjects who failed static tests of stereoscopic depth perception could respond accurately to continuously changing disparities.
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This research was supported by National Eye Institute Grant EY 04553.
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Braunstein, M.L., Andersen, G.J., Rouse, M.W. et al. Recovering viewer-centered depth from disparity, occlusion, and velocity gradients. Perception & Psychophysics 40, 216–224 (1986). https://doi.org/10.3758/BF03211501
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DOI: https://doi.org/10.3758/BF03211501