Two experiments, with 17-day and 120-day isolation, were carried out within the frame of the Scientific International Research in Unique Terrestrial Station (SIRIUS) international project at the Institute of Biomedical Problems (Moscow, Russia). Manifestations of the “detachment” phenomenon in the crew – mission control center (MCC) communication previously identified in the Mars-500 project were confirmed in this study. As in the Mars-500 experiment, in the SIRIUS-19, the landing simulation in the halfway of isolation caused a temporary increase of crew communication with MCC. We also revealed several differences in the communication styles of male and female crew members. By the end of the experiment, there was a convergence of communication styles of all the SIRIUS crew members and also an increase in crew cohesion.
Usability and validity of a based on virtual reality (VR) psychological support program were tested in a 3-day dry immersion study with participation of female subjects. Test results advocate that VR can be beneficial for managing the psychophysiological reactions in the period of acute adaptation to dry immersion.
Studies conducted by I. Altman in the 1960–70s revealed the increase in the individual stress level under isolation and confinement. Altman introduced the term “privacy” as a desired level of personal space that humans need to feel psychologically comfortable. The author also mentioned the dynamic process of boundary regulation that can be accompanied by the increase in conflict tension in the confined groups. In our study with short-term chamber isolation ESKIS, we analyzed behavior, crew interactions, and psychological state of a mixed-gender crew with none or minimal previous isolation experience (4 males and 2 females) who spent 14 days in a small chamber of 50 m3. The study confirmed that the pre-isolation period was particularly stressful for the subjects who felt also significant anxiety during the first days of isolation. Also, some mood and sleep disturbances were detected under isolation and crowding. Psychological stress made the crew more cohesive; they demonstrated the increase in common values. Extraverted subjects who could obtain social support from their partners and Mission Control’s duty teams were less interested in psychological support via VR.
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