Size-arrival effects: The potential roles of conflicts between monocular and binocular time-to-contact information, and of computer aliasing |
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Authors: | Patricia R Delucia |
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Institution: | 1. Department of Psychology, Texas Tech University, 79409-2051, Lubbock, TX
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Abstract: | With computer simulations of self-motion, participants approached a floating object and tried to “jump” over it without collision. Participants “jumped” significantly later over small objects than they did over larger objects. This occurred when the displays were viewed monocularly or binocularly, a finding that suggests that such size-arrival effects (DeLucia & Warren, 1994) were not due to a conflict between monocular and binocular cues to time-to-contact (TTC) information (Tresilian, 1994,1995). Moreover, the results further suggest that size-arrival effects are not due to irregularities in TTC information that can occur from computer abasing and that the latter does not always affect TTC estimation; visual information used in such judgments does not seem to be extracted on a frame-by-frame basis. |
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