Generating Flight Illusions Using Galvanic Vestibular Stimulation in Virtual Reality Flight Simulations.

Area of Science:

• Aviation training and human factors research.
• Neuroscience and sensory perception studies.
• Virtual reality (VR) and simulation technology.

Background:

• Vestibular flight illusions pose significant challenges in aviation training.
• Traditional flight simulators lack the ability to replicate vestibular illusions.
• Galvanic vestibular stimulation (GVS) is a method to induce vestibular perception.

Purpose of the Study:

• To evaluate GVS's capability in simulating flight illusions within VR environments.
• To investigate the use of mismatched GVS during flight simulation tasks.
• To assess the impact of GVS on motion perception and illusion induction.

Main Methods:

• Nineteen participants underwent flight simulation tasks (take-off, sustained turn) in VR, with and without GVS.
• Multi-axis GVS was applied to induce somatogravic and Coriolis illusions.
• Subjective motion perception was recorded via joystick input; cumulative angular distance and peak angular velocity were measured.

Main Results:

• GVS significantly increased perceived somatogravic illusions during take-off (pitch-up axis).
• GVS significantly enhanced perceived Coriolis illusions during sustained turns across all axes (roll, yaw, pitch).
• Subjective nausea was low but significantly higher in the GVS condition.

Conclusions:

• Intentionally mismatched GVS effectively alters motion perception and creates flight illusions in VR simulation.
• This GVS application holds potential for enhancing aviation training paradigms.
• Pilots can safely experience and learn to manage flight illusions through GVS-assisted ground training.