Jun 03, 2026
Vestibular Illusions and Recovery Patterns in Military Pilots under Complex Operational Environments: A Scoping Review
- 1SRBS,VMRF (DU), AVMC & H, Puducherry
Protocol Citation: Augustina Noel 2026. Vestibular Illusions and Recovery Patterns in Military Pilots under Complex Operational Environments: A Scoping Review. protocols.io https://dx.doi.org/10.17504/protocols.io.5jyl83r16v2w/v1
License: This is an open access protocol distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
Protocol status: In development
We are still developing and optimizing this protocol
Created: May 30, 2026
Last Modified: June 03, 2026
Protocol Integer ID: 318228
Keywords: Vestibular Illusions, Spatial Disorientation , Military pilots, Spatial disorientation recovery patterns , Spatial disorientation temporal dynamics, Spatial disorientation countermeasures, Spatial disorientation mitigation strategies, High performance aviation , vestibular illusions of spatial disorientation, vestibular illusion, recovery patterns in military pilot, spatial disorientation, military pilot, complex operational environment, recovery pattern
Disclaimer
Institutional/Funding Disclaimer:
The views, findings, and conclusions expressed in this scoping review are those of the authors and do not necessarily reflect the official policy or position of any military department, government agency, or academic institution.
Research and Medical Disclaimer:
This study is a systematic synthesis of existing peer-reviewed literature and technical reports for informational and research purposes only. It is intended to delineate knowledge gaps and methodological inconsistencies regarding vestibular illusions and recovery patterns of spatial disorientation (SD).
Operational Use:
While this review identifies potential policy reforms and optimized training strategies, any implementation of the
countermeasures discussed (such as VR or GVS-based training) should be conducted under the guidance of qualified aeromedical personnel and in accordance with established aviation safety protocols.
Abstract
This scoping review will map vestibular illusions of Spatial Disorientation (SD) and recovery patterns in military pilots. We are focusing on the underlying physiology, temporal dynamics and the effectiveness of countermeasures used to overcome SD. Following PRISMA-ScR guidelines, we will synthesize research and technical reports from 2006 to 2026 on search engines such as PubMed, MEDLINE, Scopus, Web of Science, Sage, ScienceDirect, ProQuest and Google Scholar.
Review Demographic details
Type of Review: Scoping Review
Title: Vestibular Illusions and Recovery Patterns in Military Pilots under Complex Operational Environments: A Scoping Review
Original language title: English
Start Date: 30/05/2026
End Date: 30/12/27
Stage of review at the time of this submission: Piloting of the study selection process
Named contact: Augustina Noel (Vinayaka Mission's Research Foundation)
Named contact email: [email protected]
Review team members and their organizational affiliations: Augustina Noel (Vinayaka Mission's Research Foundation), Tharun B (Vinayaka Mission's Research Foundation)
Funding sources/sponsors: None
Research Questions
1. What is the distribution of vestibular illusion types among military pilots based on their underlying pathophysiology?
2. What are the documented temporal dynamics and recovery patterns associated with different types of spatial disorientation (SD) events?
3. Which diagnostic test batteries are utilized to assess vestibular function in military pilots experiencing SD?
4. What is the evidence regarding the effectiveness of vestibular-based training and countermeasures in reducing SD incidence or improving recovery?
Methodology
The primary sources of data will be:
• Electronic Databases: PubMed, MEDLINE, Scopus, Web of Science, Sage, ScienceDirect, and ProQuest.
• Supplementary Sources: Google Scholar and manual reference chaining to identify missing reports.
We use standard Boolean operators to link key concepts:
- Population: "Military pilots" OR "fighter pilots" OR "helicopter pilots".
- Condition: "Spatial disorientation" OR "vestibular illusion" OR "sensory conflict".
- Specific Illusions: "Coriolis" OR "somatogravic" OR "the leans" OR "G-excess".
- Recovery patterns: "Temporal dynamics" OR "recovery patterns" OR "recovery window".
Inclusion and Exclusion Criteria:
To be eligible for the sample, articles must meet the following predefined criteria:
• Inclusion Criteria:
o Population: Studies focusing on military aviators/aircrew.
o Focus: Must address vestibular-based spatial disorientation (e.g., Coriolis, somatogravic, somatogyral, or "the leans" illusions).
o Outcomes: Must provide data on recovery patterns, temporal dynamics (e.g., the 1–15 second window for unrecognized SD), or diagnostic assessment (e.g., vHIT, DVA, caloric tests, or
postural stability).
o Timeframe: Peer-reviewed studies and technical reports published between 2006 and June 2026 to capture modern aviation technologies like VR and GVS.
• Exclusion Criteria:
o Studies exclusively focusing on visual illusions (e.g., false horizons) without a vestibular component.
o Clinical vestibular disorders unrelated to the stressors of the flight environment.
o General civilian aviation studies that do not provide comparative data relevant to high-performance military flight profiles.
Data Collection and Preparation Process:
Data will be gathered and prepared following the PRISMA-ScR (Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews) framework:
• Identification: Search results from all databases will be exported to a reference manager, and duplicates will be removed.
• Screening: To manage unintended influences, two independent reviewers will screen titles and
abstracts against the inclusion criteria.
• Eligibility: Full-text versions of relevant articles will be retrieved and assessed for final eligibility.
• Charting: Data will be extracted using a standardized charting form to capture variables such as
illusion type, recovery timeline, and effectiveness of countermeasures like high-fidelity simulators or galvanic vestibular stimulation.
Analysis/Synthesis
Themes: The review will report findings based on the following domains:
1) Vestibular illusions and pathophysiology in Military pilots
2) Prevalence of vestibular illusions in Military pilots
3) Measures of vestibular illusions - based on vestibular assessment findings
4) Outcome of vestibular illusions - SD type reported and temporal dynamics
5) Countermeasures and mitigation strategies used, and effectiveness