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Related Experiment Videos

Maintenance of complex performance during a 135-day spaceflight simulation.

J Sauer1, G R Hockey, D G Wastell

  • 1Department of Psychology, University of Bochum, Germany.

Aviation, Space, and Environmental Medicine
|April 2, 1999
PubMed
Summary

Crew performance in space missions was assessed using a complex simulation. While generally successful, some performance dips occurred, with less information sampling and more control activity over time.

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Area of Science:

  • Space exploration
  • Human factors in aerospace
  • Psychology of extreme environments

Background:

  • Maintaining crew performance during long space missions is critical due to isolation and confinement.
  • Previous studies lacked appropriate performance tests to evaluate this challenge.

Purpose of the Study:

  • To evaluate crew performance during a simulated long-duration spaceflight.
  • To assess the impact of isolation and confinement on task management and cognitive functions.

Main Methods:

  • Utilized a PC-based simulation of a spacecraft's life support system for a 135-day MIR mission simulation.
  • Employed a complex multiple-task environment to measure primary/secondary task performance, control activity, and information sampling.
  • Included subjective state variables in the assessment.

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Main Results:

  • Indicated successful overall adjustment to isolation and confinement.
  • Observed temporary disruptions in some performance indicators.
  • Noted decreased information sampling frequency and increased system control activities with mission duration.

Conclusions:

  • Computer simulations of complex tasks are effective for evaluating crew performance.
  • Addressing continuous learning in repeated testing is necessary for future research.
  • The study highlights the feasibility of using simulations to monitor astronaut adaptation.