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This study examines the dynamics of expeditioners’ psychological states during one year of work at the Antarctic station. It included twelve expeditioners of Akademik Vernadsky Ukrainian Antarctic Station. Thirteen series of monthly studies were carried out using the modified methodology of the scaled psychological state self-assessment. The states were assessed for the psycho-physiological (well-being, activity, mood, performance, health status) and social-psychological (satisfaction with relations with colleagues, satisfaction with the environment and work performed, life satisfaction) components. In general, the self-assessed indicators of expeditioners’ psychological states rise significantly during the first four months of the year-long expedition. Further, their average self-assessments begin to decline gradually, reaching the lowest values in the last two months of staying at the Antarctic station. However, some indicators showed dynamics slightly different from the general tendency, and psychological states of some expeditioners remained quite stable during all expedition. The results of this study can be used for better psychological selection of Antarctic expedition participants and psychological support for them.
