How isolated and confined-environment missions shape human interactions: SIRIUS-21

How isolated and confined-environment missions shape human interactions: SIRIUS-21 Научная публикация

Журнал

Acta Astronautica
ISSN: 1879-2030 , E-ISSN: 0094-5765

Вых. Данные

Год: 2025, Номер: 234, Страницы: 329–336 Страниц : DOI: 10.1016/j.actaastro.2025.05.004

Ключевые слова

Cohesion, Confinement, Human interactions, Isolation, Space psychology

Авторы

Migaki Wakako ¹ , Doki Shotaro ² , Kanai Norishige ^1,3 , Oi Yuichi ⁴ , Schastlivtseva Daria ⁵ , Takahashi Tsukasa ² , Fujii Akari ¹ , Hori Daisuke ² , Matsuzaki Ichiyo ^2,6 , Sasahara Shin-ichiro ²

Организации

1	Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
2	Institute of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
3	Japan Aerospace Exploration Agency, 2-1-1 Sengen, Tsukuba, Ibaraki, 305-8505, Japan
4	Shibuyagawa Clinic, Yamato Building 2F, 2-19-3 Jingu-mae, Shibuya, Tokyo, 150-0001, Japan
5	Institute of Biomedical Problems of the Russian Academy of Sciences (IBMP RAS), Khoroshevskoe Shosse 76A, Moscow, 123007, Russia
6	International Institute for Integrative Sleep Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan

In recent years, manned space missions have advanced towards aiming for the Moon and Mars, underscoring the critical importance of accumulating knowledge on the long-term changes in human interactions within isolated and confined environments (ICE). This study investigated the dynamics of human interactions among the crew participating in the 240-day closed experiment named SIRIUS-21 (Scientific International Research in Unique Terrestrial Station) in Moscow, Russia. Using sociometric tests, data on human interactions during task-related and private times were collected separately. The results indicated dynamic changes in human interactions during the initial stages of the mission, followed by stabilization in the later stages. Interpersonal conflicts emerged among the crew during the initial phase of the mission, prompting intervention by psychological specialists. Furthermore, evaluation of human interactions during task-related and private times revealed a trend towards the blurring of boundaries between task-related and private interactions as the mission progressed. Additionally, while a persistent tendency of mutual exclusion was observed between certain individuals within the crew, the Cohesion scores remained approximately 1.0 in both task-related time and private time, and performance levels were consistently high. These findings suggest that timely intervention by external specialists may be effective in stabilizing team dynamics and that interpersonal conflict or the unification of task-related and private relationships does not necessarily have a negative impact on team functioning. In future manned space missions aimed at the Moon or Mars, awareness of the potential risks associated with the blurring of boundaries between task-related time and private time will be essential. By utilizing tools such as sociograms to visualize and monitor interpersonal relationships and psychological safety, early detection of issues and timely interventions may become possible.

Migaki W. , Doki S. , Kanai N. , Oi Y. , Schastlivtseva D. , Takahashi T. , Fujii A. , Hori D. , Matsuzaki I. , Sasahara S-i.
How isolated and confined-environment missions shape human interactions: SIRIUS-21
Acta Astronautica. 2025. N234. P.329–336. DOI: 10.1016/j.actaastro.2025.05.004 OpenAlex

Опубликована online:	3 мая 2025 г.
Поступила в редакцию:	15 мая 2025 г.

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