期刊
I-PERCEPTION
卷 7, 期 2, 页码 -出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/2041669516631695
关键词
self-motion perception; vection; diffuse; specular; reflectance; vision
资金
- Australian Research Council (ARC) [FT140100535]
- Australian Research Council [FT140100535] Funding Source: Australian Research Council
We considered whether optic flow generated by 3D relief of a foreground surface might influence visually-mediated self-motion perception (vection). We generated background motion consistent with self-rotation, and a foreground object with bumpy relief was either rotated with the observer (ego-centric) or fixed in world coordinates (world-centric). We found that vection strength ratings were greater in conditions with world-centric retinal motion of the foreground object, despite generating flow that was opposite to background motion. This effect was explained by observer judgments of the axis self-rotation in depth; whereas ego-centric flow generated experiences of more on-axis self-rotation, world-centric flow generated experiences of centrifugal rotation around the foreground object. These data suggest that foreground object motion can increase the perception of self-motion generated by optic flow, even when they reduce net retinal motion coherence and promote conditions for multisensory conflict. This finding supports the view that self-motion perception depends on mid-level representations of whole-scene motion.
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