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Behavior and performance on long-duration spaceflights: evidence from analogue environments.
L A Palinkas1, E K Gunderson, J C Johnson
1Department of Family and Preventive Medicine, University of California, San Diego, La Jolla 92093-0807, USA. lpalinkas@ucsd.edu
Aviation, Space, and Environmental Medicine
|September 19, 2000
Summary
Long-duration space missions may see seasonal behavior changes. Crew social dynamics and environment significantly impact mood and performance, with challenging settings potentially offering benefits.
Area of Science:
- Space behavioral science
- Human factors in extreme environments
- Psychological adaptation
Background:
- Antarctic research provides insights into long-duration space mission challenges.
- Historical data from 1963 onwards informs behavioral and performance analyses.
Purpose of the Study:
- To identify behavioral and performance characteristics relevant to long-duration space missions.
- To analyze the influence of mission duration, social factors, and environment on crew well-being and performance.
Main Methods:
- Examined mood scores (POMS) in relation to mission duration and latitude for 450 Antarctic overwinterers (1991-1998).
- Assessed behavior and performance in 657 male overwinterers (1963-1974) based on social characteristics, personality, and environment.
- Analyzed the impact of crew social structure on individual performance using both datasets.
Main Results:
- Seasonal mood variations correlate with altered diurnal cycles and mission segmentation.
- Concurrent personality and coping style measures predict mood and performance better than baseline due to unique environmental stressors.
- Clique-based social structures are linked to increased negative mood states (depression, anxiety, anger, fatigue, confusion).
- A salutogenic effect exists where challenging environments positively influence individuals.
Conclusions:
- Behavior and performance in long-duration spaceflight are likely influenced by seasonality, situational factors, social dynamics, and a salutogenic response.
- Understanding these factors is crucial for astronaut selection and mission support.