Perception of body translation amplitude in altered gravity during parabolic flight
IntroductionThis study aimed to assess how individuals perceive the amplitude of passive body translation in microgravity and hypergravity.MethodsSix subjects participated in parabolic flights aboard the Novespace A-310 Zero-G aircraft, performing tasks that involved linear translation ranging from...
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Frontiers Media S.A.
2025-05-01
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| Series: | Frontiers in Physiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphys.2025.1595836/full |
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| author | Gilles Clément Olga Kuldavletova Gaëlle Quarck Timothy R. Macaulay Scott J. Wood Pierre Denise |
| author_facet | Gilles Clément Olga Kuldavletova Gaëlle Quarck Timothy R. Macaulay Scott J. Wood Pierre Denise |
| author_sort | Gilles Clément |
| collection | DOAJ |
| description | IntroductionThis study aimed to assess how individuals perceive the amplitude of passive body translation in microgravity and hypergravity.MethodsSix subjects participated in parabolic flights aboard the Novespace A-310 Zero-G aircraft, performing tasks that involved linear translation ranging from 25 to 250 cm across different axes, all while blindfolded. After each motion stimulus, subjects reported their perceived displacement, while trial duration and movement amplitude and dynamics were recorded.ResultsResults showed that the perceived amplitudes of translations were accurate in 1 g. However, subjects significantly underestimated distances in 0 g and overestimated them in 1.8 g.DiscussionThese findings suggest that, in microgravity, the lack of gravitational cues disrupts the vestibular system’s ability to provide accurate information on body movement, leading to altered motion perception. The role of temporal cues in estimating movement, particularly when gravitational input is altered, is inferred since the reports were made following each trial. Countermeasures such as visual aids and proprioceptive devices could help astronauts improve distance and time estimates during long-duration missions, especially in vehicles with restricted visibility or when operating rovers on Lunar or Martian terrains. |
| format | Article |
| id | doaj-art-bc0ef0e4f61e41b8a9e29bee40e1f5a1 |
| institution | OA Journals |
| issn | 1664-042X |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physiology |
| spelling | doaj-art-bc0ef0e4f61e41b8a9e29bee40e1f5a12025-08-20T02:25:40ZengFrontiers Media S.A.Frontiers in Physiology1664-042X2025-05-011610.3389/fphys.2025.15958361595836Perception of body translation amplitude in altered gravity during parabolic flightGilles Clément0Olga Kuldavletova1Gaëlle Quarck2Timothy R. Macaulay3Scott J. Wood4Pierre Denise5KBR, Houston, TX, United StatesUniversité de Caen Normandie, INSERM, COMETE U1075, CYCERON, CHU de Caen, Caen, FranceUniversité de Caen Normandie, INSERM, COMETE U1075, CYCERON, CHU de Caen, Caen, FranceNASA Johnson Space Center, Houston, TX, United StatesNASA Johnson Space Center, Houston, TX, United StatesUniversité de Caen Normandie, INSERM, COMETE U1075, CYCERON, CHU de Caen, Caen, FranceIntroductionThis study aimed to assess how individuals perceive the amplitude of passive body translation in microgravity and hypergravity.MethodsSix subjects participated in parabolic flights aboard the Novespace A-310 Zero-G aircraft, performing tasks that involved linear translation ranging from 25 to 250 cm across different axes, all while blindfolded. After each motion stimulus, subjects reported their perceived displacement, while trial duration and movement amplitude and dynamics were recorded.ResultsResults showed that the perceived amplitudes of translations were accurate in 1 g. However, subjects significantly underestimated distances in 0 g and overestimated them in 1.8 g.DiscussionThese findings suggest that, in microgravity, the lack of gravitational cues disrupts the vestibular system’s ability to provide accurate information on body movement, leading to altered motion perception. The role of temporal cues in estimating movement, particularly when gravitational input is altered, is inferred since the reports were made following each trial. Countermeasures such as visual aids and proprioceptive devices could help astronauts improve distance and time estimates during long-duration missions, especially in vehicles with restricted visibility or when operating rovers on Lunar or Martian terrains.https://www.frontiersin.org/articles/10.3389/fphys.2025.1595836/fulltranslation perceptiontime perceptionvestibular systemaltered gravityspace exploration |
| spellingShingle | Gilles Clément Olga Kuldavletova Gaëlle Quarck Timothy R. Macaulay Scott J. Wood Pierre Denise Perception of body translation amplitude in altered gravity during parabolic flight Frontiers in Physiology translation perception time perception vestibular system altered gravity space exploration |
| title | Perception of body translation amplitude in altered gravity during parabolic flight |
| title_full | Perception of body translation amplitude in altered gravity during parabolic flight |
| title_fullStr | Perception of body translation amplitude in altered gravity during parabolic flight |
| title_full_unstemmed | Perception of body translation amplitude in altered gravity during parabolic flight |
| title_short | Perception of body translation amplitude in altered gravity during parabolic flight |
| title_sort | perception of body translation amplitude in altered gravity during parabolic flight |
| topic | translation perception time perception vestibular system altered gravity space exploration |
| url | https://www.frontiersin.org/articles/10.3389/fphys.2025.1595836/full |
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