VOR Adaptation in Virtual Reality: Implications for Stationarity Perception. Harris, L. R., Allison, R. S., Jenkin, M., Herpers, R., Bury, N., & Schellen, E. In Abstracts Vestibular-Oriented Research Meeting. Journal of Vestibular Research, pages Podium Abstract 29. 2025. ![VOR Adaptation in Virtual Reality: Implications for Stationarity Perception [link]](https://bibbase.org/img/filetypes/link.svg "link")
-1 doi abstract bibtex Linear accelerations in the absence of visual cues to upright can be interpreted as tilt: the well-known somatogravic illusion. Here we provided linear acceleration using a human centrifuge and compared the induced tilt of the gravito-inertial acceleration to the precision and accuracy of responses to comparable physical tilt in the dark either while lying flat on a tilt table or while seated on a tiltable chair, to explore the connection between applied acceleration, posture and the perception of upright. Preliminary results (Herpers et al., 2019) had suggested possible sex differences in which women were less vulnerable to the somatogravic illusion than men. Here we sought to confirm any such differences within larger populations (centrifuge/tilt table: 44 participants, 22 females; tilt chair: 42 participants, 21 females) using head-in and head-out centrifugal forces of 0, 0.33 g, 0.66 g and 1 g compared to physical tilts between 0$\,^{∘}$ (horizontal) and $±$45$\,^{∘}$ while lying on the tilt table or while seated in the tilt chair. No sex-related differences were found either in the response to centrifugation or to physical tilt while lying. Participants consistently over-estimated their tilt when seated, with women making consistently smaller errors. These results suggest posture-dependent sex differences during tilt which do not affect the magnitude of people's somatogravic illusion. Reference Herpers et al. (2018) Frontiers in Physiology 10.3389.
@incollection{Harris:2025ab,
abstract = {Linear accelerations in the absence of visual cues to upright can be interpreted as tilt: the well-known somatogravic illusion. Here we provided linear acceleration using a human centrifuge and compared the induced tilt of the gravito-inertial acceleration to the precision and accuracy of responses to comparable physical tilt in the dark either while lying flat on a tilt table or while seated on a tiltable chair, to explore the connection between applied acceleration, posture and the perception of upright. Preliminary results (Herpers et al., 2019) had suggested possible sex differences in which women were less vulnerable to the somatogravic illusion than men. Here we sought to confirm any such differences within larger populations (centrifuge/tilt table: 44 participants, 22 females; tilt chair: 42 participants, 21 females) using head-in and head-out centrifugal forces of 0, 0.33 g, 0.66 g and 1 g compared to physical tilts between 0$\,^{\circ}$ (horizontal) and $\pm$45$\,^{\circ}$ while lying on the tilt table or while seated in the tilt chair. No sex-related differences were found either in the response to centrifugation or to physical tilt while lying. Participants consistently over-estimated their tilt when seated, with women making consistently smaller errors. These results suggest posture-dependent sex differences during tilt which do not affect the magnitude of people's somatogravic illusion.
Reference
Herpers et al. (2018) Frontiers in Physiology 10.3389.},
annote = {VOR Meeting, Boulder, Co May 2025},
author = {Laurence R. Harris and Robert S. Allison and Michael Jenkin and Rainer Herpers and Nils Bury and Elef Schellen},
booktitle = {Abstracts Vestibular-Oriented Research Meeting. Journal of Vestibular Research},
date-added = {2025-06-21 07:26:28 -0400},
date-modified = {2025-06-21 07:26:49 -0400},
doi = {10.1177/09574271251347380},
keywords = {Optic flow & Self Motion (also Locomotion & Aviation)},
pages = {Podium Abstract 29},
title = {VOR Adaptation in Virtual Reality: Implications for Stationarity Perception},
url-1 = {https://doi.org/10.1177/09574271251347380},
year = {2025},
bdsk-url-1 = {https://doi.org/10.1177/09574271251347380}}
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Here we sought to confirm any such differences within larger populations (centrifuge/tilt table: 44 participants, 22 females; tilt chair: 42 participants, 21 females) using head-in and head-out centrifugal forces of 0, 0.33 g, 0.66 g and 1 g compared to physical tilts between 0$\\,^{∘}$ (horizontal) and $±$45$\\,^{∘}$ while lying on the tilt table or while seated in the tilt chair. No sex-related differences were found either in the response to centrifugation or to physical tilt while lying. Participants consistently over-estimated their tilt when seated, with women making consistently smaller errors. These results suggest posture-dependent sex differences during tilt which do not affect the magnitude of people's somatogravic illusion. Reference Herpers et al. 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