Skip to main content
Log in

Virtual reality as a countermeasure for astronaut motion sickness during simulated post-flight water landings

  • Research Article
  • Published:
Experimental Brain Research Aims and scope Submit manuscript

Abstract

Entry motion sickness (EMS) affects crewmembers upon return to Earth following extended adaptation to microgravity. Anticholinergic pharmaceuticals (e.g., Meclizine) are often taken prior to landing; however, they have operationally adverse side effects (e.g., drowsiness). There is a need to develop non-pharmaceutical countermeasures to EMS. We assessed the efficacy of a technological countermeasure providing external visual cues following splashdown, where otherwise only nauseogenic internal cabin visual references are available. Our countermeasure provided motion-congruent visual cues of an Earth-fixed scene in virtual reality, which was compared to a control condition with a head-fixed fixation point in virtual reality in a between-subject design with 15 subjects in each group. We tested the countermeasure’s effectiveness at mitigating motion sickness symptoms at the end of a ground-based reentry analog: approximately 1 h of 2Gx centrifugation followed by up to 1 h of wave-like motion. Secondarily, we explored differences in vestibular-mediated balance performance between the two conditions. While Motion Sickness Questionnaire outcomes did not differ detectably between groups, we found significantly better survival rates (with dropout dictated by reporting moderate nausea consecutively over 2 min) in the visual countermeasure group than the control group (79% survival vs. 33%, t(14) = 2.50, p = 0.027). Following the reentry analogs, subjects demonstrated significantly higher sway prior to recovery (p = 0.0004), which did not differ between control and countermeasure groups. These results imply that providing motion-congruent visual cues may be an effective mean for curbing the development of moderate nausea and increasing comfort following future space missions.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9

Similar content being viewed by others

Data availability

Additional datasets generated during and/or analyzed during the current study are available on Open Science Framework (OSF) at the following link: https://osf.io/cb4fk/?view_only=c8177c3d215c470c86efe2b5c9e39cc3.

References

Download references

Funding

This work was supported by the National Aeronautics and Space Administration Human Research Program under Grant No. 80NSSC21K0257. Additionally, this work was supported by a NASA Space Technology Graduate Research Opportunities Award.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to T. L. Lonner.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

The studies involving human participants were reviewed and approved by The Institutional Review Board at the University of Colorado Boulder. The subjects/participants provided their written informed consent to participate in this study.

Additional information

Communicated by Bill J Yates.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

The views expressed are those of the authors and do not necessarily reflect the views of the sponsoring organization nor the official policy or position of the Department of the Navy, Department of Defense (DoD), nor the U.S. Government. Dr. Lawson is an employee of the U.S. Government. This work was prepared as part of his official duties. Title 17 U.S.C. §105 provides that ‘Copyright protection under this title is not available for any work of the United States Government.’

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Lonner, T.L., Allred, A.R., Bonarrigo, L. et al. Virtual reality as a countermeasure for astronaut motion sickness during simulated post-flight water landings. Exp Brain Res 241, 2669–2682 (2023). https://doi.org/10.1007/s00221-023-06715-5

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00221-023-06715-5

Keywords

Navigation