Accuracy and Tuning of Flow Parsing for Visual Perception of Object Motion During Self-Motion.

In both display conditions and at all object motion speeds, the flow parsing gain was significantly smaller than 100%, t (7) < −7.75, p < .0001, indicating that flow parsing did not completely remove the self-motion component from the probe’s retinal motion. A 2 (display condition) × 4 (object motion speed) repeated-measures ANOVA revealed that while the main effect of display condition was significant, F (1, 7) = 59.1, p = .0001, the main effect of object motion speed was not, F (3, 21) = 0.99, p = .42, and their interaction effect was marginally significant, F (3, 21) = 3.04, p = .051.

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