Vection does not facilitate flow parsing. Guo, H. & Allison, R. S. In Journal of Vision (VSS Abstracts), volume 23, pages 4721. 2023. ![Vection does not facilitate flow parsing [link]](https://bibbase.org/img/filetypes/link.svg "link")
-1 doi abstract bibtex The perception of self-motion can be induced or enhanced by exposure to visual stimuli such as optic flow. It has also been shown that consistent stereoscopic information enhances visually-induced self-motion perception (vection). Conversely, does vection affect the observer's ability to parse the flow? And if so, how does it interact with binocular stereopsis? To investigate, we presented participants a scene including a target, a fixation cross, floor, ceiling, and pillars to provide optic flow using a wide-field, stereoscopic, immersive display. Participants virtually moved forward or backward at 1.4 m/s, either while continuously viewing the scene to produce vection or when it was only displayed during the 500 ms trial (the no-vection condition). The target was presented initially at eye level, and moved obliquely upward in a sagittal-parallel plane. The target's velocity in depth was adjusted by adaptive staircases to obtain the bias and sensitivity. The task was to indicate whether the target moved obliquely forward or backward in the scene. The stimuli were presented in three viewing conditions: stereoscopic condition, synoptic condition, and monocular condition, to explore the possible interaction between vection and stereoscopic information. While all participants verbally reported that they experienced more vection with the vection condition, the result showed that the bias was slightly but significantly (F(1,127)=5.0217, p<.027) higher with vection (1.279 m/s) than without vection (1.219 m/s). This means vection did not help on reducing the flow parsing bias. Furthermore, we did not find any significant interaction effect between vection conditions and viewing conditions.
@incollection{Guo:2023aa,
abstract = {The perception of self-motion can be induced or enhanced by exposure to visual stimuli such as optic flow. It has also been shown that consistent stereoscopic information enhances visually-induced self-motion perception (vection). Conversely, does vection affect the observer's ability to parse the flow? And if so, how does it interact with binocular stereopsis? To investigate, we presented participants a scene including a target, a fixation cross, floor, ceiling, and pillars to provide optic flow using a wide-field, stereoscopic, immersive display. Participants virtually moved forward or backward at 1.4 m/s, either while continuously viewing the scene to produce vection or when it was only displayed during the 500 ms trial (the no-vection condition). The target was presented initially at eye level, and moved obliquely upward in a sagittal-parallel plane. The target's velocity in depth was adjusted by adaptive staircases to obtain the bias and sensitivity. The task was to indicate whether the target moved obliquely forward or backward in the scene. The stimuli were presented in three viewing conditions: stereoscopic condition, synoptic condition, and monocular condition, to explore the possible interaction between vection and stereoscopic information. While all participants verbally reported that they experienced more vection with the vection condition, the result showed that the bias was slightly but significantly (F(1,127)=5.0217, p<.027) higher with vection (1.279 m/s) than without vection (1.219 m/s). This means vection did not help on reducing the flow parsing bias. Furthermore, we did not find any significant interaction effect between vection conditions and viewing conditions.},
author = {Guo, H. and Allison, R. S.},
booktitle = {Journal of Vision (VSS Abstracts)},
date-added = {2023-08-30 10:46:37 -0400},
date-modified = {2023-08-30 10:48:05 -0400},
doi = {10.1167/jov.23.9.4721},
keywords = {Optic flow & Self Motion (also Locomotion & Aviation)},
pages = {4721},
title = {Vection does not facilitate flow parsing},
volume = {23},
year = {2023},
url-1 = {https://doi.org/10.1167/jov.22.14.3575}}
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The target was presented initially at eye level, and moved obliquely upward in a sagittal-parallel plane. The target's velocity in depth was adjusted by adaptive staircases to obtain the bias and sensitivity. The task was to indicate whether the target moved obliquely forward or backward in the scene. The stimuli were presented in three viewing conditions: stereoscopic condition, synoptic condition, and monocular condition, to explore the possible interaction between vection and stereoscopic information. While all participants verbally reported that they experienced more vection with the vection condition, the result showed that the bias was slightly but significantly (F(1,127)=5.0217, p<.027) higher with vection (1.279 m/s) than without vection (1.219 m/s). This means vection did not help on reducing the flow parsing bias. 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Conversely, does vection affect the observer's ability to parse the flow? And if so, how does it interact with binocular stereopsis? To investigate, we presented participants a scene including a target, a fixation cross, floor, ceiling, and pillars to provide optic flow using a wide-field, stereoscopic, immersive display. Participants virtually moved forward or backward at 1.4 m/s, either while continuously viewing the scene to produce vection or when it was only displayed during the 500 ms trial (the no-vection condition). The target was presented initially at eye level, and moved obliquely upward in a sagittal-parallel plane. The target's velocity in depth was adjusted by adaptive staircases to obtain the bias and sensitivity. The task was to indicate whether the target moved obliquely forward or backward in the scene. The stimuli were presented in three viewing conditions: stereoscopic condition, synoptic condition, and monocular condition, to explore the possible interaction between vection and stereoscopic information. While all participants verbally reported that they experienced more vection with the vection condition, the result showed that the bias was slightly but significantly (F(1,127)=5.0217, p<.027) higher with vection (1.279 m/s) than without vection (1.219 m/s). This means vection did not help on reducing the flow parsing bias. Furthermore, we did not find any significant interaction effect between vection conditions and viewing conditions.},\n\tauthor = {Guo, H. and Allison, R. 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