title: Comparison of postural responses to galvanic vestibular stimulation between pilots and the general populace.
abstract: Galvanic vestibular stimulation (GVS) can be used to study the body's response to vestibular stimuli. This study aimed to investigate whether postural responses to GVS were different between pilots and the general populace. Bilateral bipolar GVS was applied with a constant-current profile to 12 pilots and 12 control subjects via two electrodes placed over the mastoid processes. Both GVS threshold and the center of pressure's trajectory (COP's trajectory) were measured. Position variability of COP during spontaneous body sway and peak displacement of COP during GVS-induced body sway were calculated in the medial-lateral direction. Spontaneous body sway was slight for all subjects, and there was no significant difference in the value of COP position variability between the pilots and controls. Both the GVS threshold and magnitude of GVS-induced body deviation were similar for different GVS polarities. GVS thresholds were similar between the two groups, but the magnitude of GVS-induced body deviation in the controls was significantly larger than that in the pilots. The pilots showed less GVS-induced body deviation, meaning that pilots may have a stronger ability to suppress vestibular illusions.
authors: International Joint Research Center of Aerospace Biotechnology and Medical Engineering of Ministry of Science and Technology of China, School of Biological Science and Medical Engineering, Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing 100191, China.
authors: Yang
authors: Y
authors: Yang
authors: International Joint Research Center of Aerospace Biotechnology and Medical Engineering of Ministry of Science and Technology of China, School of Biological Science and Medical Engineering, Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing 100191, China ; State Key Laboratory of Virtual Reality Technology and Systems, Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing 100191, China.
authors: Fang
authors: F
authors: Pu
authors: Aviation and Nautical Medical Center, Navy General Hospital, No. 6 Fucheng Road, Haidian District, Beijing 100048, China.
authors: Xiaoning
authors: X
authors: Lv
authors: International Joint Research Center of Aerospace Biotechnology and Medical Engineering of Ministry of Science and Technology of China, School of Biological Science and Medical Engineering, Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing 100191, China.
authors: Shuyu
authors: S
authors: Li
authors: Aviation and Nautical Medical Center, Navy General Hospital, No. 6 Fucheng Road, Haidian District, Beijing 100048, China.
authors: Jing
authors: J
authors: Li
authors: International Joint Research Center of Aerospace Biotechnology and Medical Engineering of Ministry of Science and Technology of China, School of Biological Science and Medical Engineering, Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing 100191, China ; State Key Laboratory of Virtual Reality Technology and Systems, Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing 100191, China.
authors: Deyu
authors: D
authors: Li
authors: Aviation and Nautical Medical Center, Navy General Hospital, No. 6 Fucheng Road, Haidian District, Beijing 100048, China.
authors: Minggao
authors: M
authors: Li
authors: International Joint Research Center of Aerospace Biotechnology and Medical Engineering of Ministry of Science and Technology of China, School of Biological Science and Medical Engineering, Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing 100191, China ; State Key Laboratory of Virtual Reality Technology and Systems, Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing 100191, China.
authors: Yubo
authors: 0000-0002-3480-4395
authors: Y
authors: Fan
mesh_terms: D000328:Adult; D000401:Aircraft; D004558:Electric Stimulation; D006801:Humans; D004856:Postural Balance / Q000502:physiology*; D011312:Pressure; D012684:Sensory Thresholds; D014722:Vestibule, Labyrinth / Q000502:physiology*; D055815:Young Adult
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