Vestibular Function after Repeated Space Flights
- 26 Downloads
This paper presents the results from testing the vestibular function on return from repeated space flights (SF) in 32 cosmonauts of the International Space Station that were in long SFs of 125–215 days. The cosmonauts were tested twice before the flight (baseline data collection) and on days 1–2, 4–5, and 8–9 after landing. The testing was made using two methods for recording eye movements (with simultaneous recording of head movements): electro-oculography and video-oculography. It is shown that the repeated stay in the long SF leads to a considerable statistically significant reduction in the de-adaptation period. Atypical vestibular disorders and changed patterns of the otolith-semicircular canal interaction are observed mostly in the cosmonauts who have made their maiden flights to microgravity.
Keywordsvestibular system otolith-cervico-ocular reflex vestibular-cervico-ocular reflex vestibular reactivity microgravity
Unable to display preview. Download preview PDF.
- 1.Kornilova, L.N., Naumov, I.A., Sagalovich, S.V., and Reschke, M., Vestibular function and visual tracking after prolonged spaceflights, in Kosmicheskaya biologiya i meditsina. Tom 2. Mediko-biologicheskie issledovaniya na rossiiskom segmente MKS (Space Biology and Medicine, Vol. 2: Medical and Biological Studies in the Russian Part of the International Space Station), Moscow: Nauka, 2011, pp. 124–166.Google Scholar
- 3.Kornilova, L.N., Naumov, I.A., and Kozlovskaya, I.B., Neurosensory studies of human vestibular function, in Kosmicheskaya meditsina i biologiya (Space Medicine and Biology), Grigor’ev, A.I. and Ushakov, I.B., Eds., Voronezh: Nauchnaya Kniga, 2013, pp. 278–297.Google Scholar
- 4.Kornilova, L.N., Alekhina, M.I., Sagalovich, S.V., and Kozlovskaya, I.B., RF Patent 2307575, 2007.Google Scholar
- 5.Clarke, A.H., Teiwes, W., and Scherer, H., Evaluation of the torsional VOR in weightlessness, J. Vestibular Res., 1993, vol. 3, no. 3, pp. 207–218.Google Scholar
- 6.Clarke, A.H. and Kornilova, L., Ocular torsion response to active head-roll movement under one-g and zero-g conditions, J. Vestibular Res., 2007, vol. 17, nos. 2–3, pp. 99–111.Google Scholar
- 7.Kurashvili, A.E. and Babiyak, V.I., Fiziologicheskie funktsii vestibulyarnoi sistemy (Physiological Functions of Vestibular System), Leningrad: Meditsina, 1975.Google Scholar
- 8.Shipov, A.A., Electronastagmographic studies of compensation and adaptation processes in the vestibular system, Extended Abstract of Cand. Sci. (Biol.) Dissertation, Moscow, 1975.Google Scholar
- 10.Wolfe, J.W., Evidence for control of nystagmic habituation by foliumtuber vermis and fastigial nuclei, Acta Otolaryngol., 1968, vol. 231, pp. 1–48.Google Scholar