A New Angle on Object-Background Effects in Vection
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-centri...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2016-02-01
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| Series: | i-Perception |
| Online Access: | https://doi.org/10.1177/2041669516631695 |
| _version_ | 1819109903904538624 |
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| author | Juno Kim Michael T. T. Tran |
| author_facet | Juno Kim Michael T. T. Tran |
| author_sort | Juno Kim |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-22T03:33:14Z |
| format | Article |
| id | doaj.art-9d6c352b37f742d39974c8a41637d327 |
| institution | Directory Open Access Journal |
| issn | 2041-6695 |
| language | English |
| last_indexed | 2024-12-22T03:33:14Z |
| publishDate | 2016-02-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | i-Perception |
| spelling | doaj.art-9d6c352b37f742d39974c8a41637d3272022-12-21T18:40:27ZengSAGE Publishingi-Perception2041-66952016-02-01710.1177/204166951663169510.1177_2041669516631695A New Angle on Object-Background Effects in VectionJuno KimMichael T. T. TranWe 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.https://doi.org/10.1177/2041669516631695 |
| spellingShingle | Juno Kim Michael T. T. Tran A New Angle on Object-Background Effects in Vection i-Perception |
| title | A New Angle on Object-Background Effects in Vection |
| title_full | A New Angle on Object-Background Effects in Vection |
| title_fullStr | A New Angle on Object-Background Effects in Vection |
| title_full_unstemmed | A New Angle on Object-Background Effects in Vection |
| title_short | A New Angle on Object-Background Effects in Vection |
| title_sort | new angle on object background effects in vection |
| url | https://doi.org/10.1177/2041669516631695 |
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