Postural instability in an immersive Virtual Reality adapts with repetition and includes directional and gender specific effects

Scientific Reports
Per-Anders FranssonEva Ekvall Hansson

Abstract

The ability to handle sensory conflicts and use the most appropriate sensory information is vital for successful recovery of human postural control after injury. The objective was to determine if virtual reality (VR) could provide a vehicle for sensory training, and determine the temporal and spatial nature of such adaptive changes. Twenty healthy subjects participated in the study (10 females). The subjects watched a 90-second VR simulation of railroad (rollercoaster) motion in mountainous terrain during five repeated simulations, while standing on a force platform that recorded their stability. The immediate response to watching the VR movie was an increased level of postural instability. Repeatedly watching the same VR movie significantly reduced both the anteroposterior (62%, p < 0.001) and lateral (47%, p = 0.001) energy used. However, females adapted more slowly to the VR stimuli as reflected by higher use of total (p = 0.007), low frequency (p = 0.027) and high frequency (p = 0.026) energy. Healthy subjects can significantly adapt to a multidirectional, provocative, visual environment after 4-5 repeated sessions of VR. Consequently, VR technology might be an effective tool for rehabilitation involving visual desensitisat...Continue Reading

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Citations

Jun 24, 2020·Journal of Motor Behavior·Tarcísio Silva CoelhoGustavo José Luvizutto
Oct 19, 2019·Journal of Neuroengineering and Rehabilitation·Imre Cikajlo, Karmen Peterlin Potisk
May 25, 2021·Journal of Vestibular Research : Equilibrium & Orientation·Alexander Hui Xiang YangYusuf Ozgur Cakmak
Jun 11, 2021·Clinical Psychology & Psychotherapy·Marcel TakacAlexander De Foe

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