Adaptation to Motion Gain in Virtual Reality. Teng, X., Wilcox, L. M., & Allison, R. S. In CVR-CIAN Conference 2025: The Brain and Integrative Vision, pages 153. 2025. ![Adaptation to Motion Gain in Virtual Reality [link]](https://bibbase.org/img/filetypes/link.svg "link")
-1 doi abstract bibtex Virtual reality (VR) can immerse individuals into digitally-generated environments, providing effective, tailored, yet safe interactions that are ideal for training applications. However, mismatch between physical and virtual space and motion makes sensory conflict in VR very common. We speculate that adaptation to gain distortions in VR would increase the chance of motion sickness and impact postural stability. To test participant's stability, we created a virtual version of our lab space and immersed them in this environment while it oscillated sinusoidally (0.5 m peak, 0.2 Hz) either in the front-back or left-right directions. As a baseline, participants stood in quiet stance for 60 seconds and their postural sway was recorded. We repeated these tests after participants adapted to motion gains of 0.667, 1, and 2. Motion gains scaled the visual motion presented in VR relative to their physical motion. The adaptation blocks were presented in counterbalanced order and consisted of an initial 10-minute adaptation period , followed by four test segments interleaved with three 2-minute top-up adaptation periods. During adaptation participants continuously walked to grab objects and aligned them with corresponding markers at other locations. Upon finishing each adaptation condition, we asked the participant to rate their motion sickness on a scale of 0 to 20 (fast motion sickness scale, FMS). Results showed that neither the FMS nor the root mean square variability of postural sway increased after adaptation, while power analysis at 0.2 Hz suggested that visually-elicited synchronous front-back postural sway was larger after adapting to gain of 2. Combined with our previous experiments, these results suggest that increased gain leads to adaptation in visually-elicited postural responses without a corresponding increase in motion sickness ratings or perceived stability. This dissociation suggests that postural recalibration to gain adaptation operates independently of perceptual mechanisms.
@incollection{Teng:2025aa,
abstract = {Virtual reality (VR) can immerse individuals into digitally-generated environments,
providing effective, tailored, yet safe interactions that are ideal for training applications.
However, mismatch between physical and virtual space and motion makes sensory
conflict in VR very common. We speculate that adaptation to gain distortions in VR
would increase the chance of motion sickness and impact postural stability. To test
participant's stability, we created a virtual version of our lab space and immersed them
in this environment while it oscillated sinusoidally (0.5 m peak, 0.2 Hz) either in the
front-back or left-right directions. As a baseline, participants stood in quiet stance
for 60 seconds and their postural sway was recorded. We repeated these tests after
participants adapted to motion gains of 0.667, 1, and 2. Motion gains scaled the visual
motion presented in VR relative to their physical motion. The adaptation blocks were
presented in counterbalanced order and consisted of an initial 10-minute adaptation
period , followed by four test segments interleaved with three 2-minute top-up
adaptation periods. During adaptation participants continuously walked to grab objects
and aligned them with corresponding markers at other locations. Upon finishing each
adaptation condition, we asked the participant to rate their motion sickness on a scale of
0 to 20 (fast motion sickness scale, FMS). Results showed that neither the FMS nor the
root mean square variability of postural sway increased after adaptation, while power
analysis at 0.2 Hz suggested that visually-elicited synchronous front-back postural sway
was larger after adapting to gain of 2. Combined with our previous experiments, these
results suggest that increased gain leads to adaptation in visually-elicited postural
responses without a corresponding increase in motion sickness ratings or perceived
stability. This dissociation suggests that postural recalibration to gain adaptation
operates independently of perceptual mechanisms.},
annote = {JUNE 17-19, 2025
SECOND STUDENT CENTRE
YORK UNIVERSITY},
author = {Xue Teng and Laurie M. Wilcox and Robert S. Allison},
booktitle = {CVR-CIAN Conference 2025: The Brain and Integrative Vision},
date-added = {2025-07-26 06:20:14 -0400},
date-modified = {2025-07-26 06:20:14 -0400},
doi = {10.25071/10315/42927},
keywords = {Optic flow & Self Motion (also Locomotion & Aviation)},
pages = {153},
title = {Adaptation to Motion Gain in Virtual Reality},
url-1 = {https://doi.org/10.25071/10315/42927},
year = {2025},
bdsk-url-1 = {https://doi.org/10.25071/10315/42927}}
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We repeated these tests after participants adapted to motion gains of 0.667, 1, and 2. Motion gains scaled the visual motion presented in VR relative to their physical motion. The adaptation blocks were presented in counterbalanced order and consisted of an initial 10-minute adaptation period , followed by four test segments interleaved with three 2-minute top-up adaptation periods. During adaptation participants continuously walked to grab objects and aligned them with corresponding markers at other locations. Upon finishing each adaptation condition, we asked the participant to rate their motion sickness on a scale of 0 to 20 (fast motion sickness scale, FMS). Results showed that neither the FMS nor the root mean square variability of postural sway increased after adaptation, while power analysis at 0.2 Hz suggested that visually-elicited synchronous front-back postural sway was larger after adapting to gain of 2. Combined with our previous experiments, these results suggest that increased gain leads to adaptation in visually-elicited postural responses without a corresponding increase in motion sickness ratings or perceived stability. This dissociation suggests that postural recalibration to gain adaptation operates independently of perceptual mechanisms.","annote":"JUNE 17-19, 2025 SECOND STUDENT CENTRE YORK UNIVERSITY","author":[{"firstnames":["Xue"],"propositions":[],"lastnames":["Teng"],"suffixes":[]},{"firstnames":["Laurie","M."],"propositions":[],"lastnames":["Wilcox"],"suffixes":[]},{"firstnames":["Robert","S."],"propositions":[],"lastnames":["Allison"],"suffixes":[]}],"booktitle":"CVR-CIAN Conference 2025: The Brain and Integrative Vision","date-added":"2025-07-26 06:20:14 -0400","date-modified":"2025-07-26 06:20:14 -0400","doi":"10.25071/10315/42927","keywords":"Optic flow & Self Motion (also Locomotion & Aviation)","pages":"153","title":"Adaptation to Motion Gain in Virtual Reality","url-1":"https://doi.org/10.25071/10315/42927","year":"2025","bdsk-url-1":"https://doi.org/10.25071/10315/42927","bibtex":"@incollection{Teng:2025aa,\n\tabstract = {Virtual reality (VR) can immerse individuals into digitally-generated environments,\nproviding effective, tailored, yet safe interactions that are ideal for training applications.\nHowever, mismatch between physical and virtual space and motion makes sensory\nconflict in VR very common. We speculate that adaptation to gain distortions in VR\nwould increase the chance of motion sickness and impact postural stability. To test\nparticipant's stability, we created a virtual version of our lab space and immersed them\nin this environment while it oscillated sinusoidally (0.5 m peak, 0.2 Hz) either in the\nfront-back or left-right directions. As a baseline, participants stood in quiet stance\nfor 60 seconds and their postural sway was recorded. We repeated these tests after\nparticipants adapted to motion gains of 0.667, 1, and 2. Motion gains scaled the visual\nmotion presented in VR relative to their physical motion. The adaptation blocks were\npresented in counterbalanced order and consisted of an initial 10-minute adaptation\nperiod , followed by four test segments interleaved with three 2-minute top-up\nadaptation periods. During adaptation participants continuously walked to grab objects\nand aligned them with corresponding markers at other locations. Upon finishing each\nadaptation condition, we asked the participant to rate their motion sickness on a scale of\n0 to 20 (fast motion sickness scale, FMS). Results showed that neither the FMS nor the\nroot mean square variability of postural sway increased after adaptation, while power\nanalysis at 0.2 Hz suggested that visually-elicited synchronous front-back postural sway\nwas larger after adapting to gain of 2. Combined with our previous experiments, these\nresults suggest that increased gain leads to adaptation in visually-elicited postural\nresponses without a corresponding increase in motion sickness ratings or perceived\nstability. This dissociation suggests that postural recalibration to gain adaptation\noperates independently of perceptual mechanisms.},\n\tannote = {JUNE 17-19, 2025\nSECOND STUDENT CENTRE\nYORK UNIVERSITY},\n\tauthor = {Xue Teng and Laurie M. Wilcox and Robert S. 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