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Related Experiment Video

Updated: May 23, 2026

Assessing Human Spatial Navigation in a Virtual Space and its Sensitivity to Exercise
06:17

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Published on: January 26, 2024

Space shuttle flight crew spatial orientation survey results.

Ronald L Small1, Charles M Oman, Thomas D Jones

  • 1Alion Science & Technology Corp, Boulder, CO, USA. Ronald_L_Small@yahoo.com

Aviation, Space, and Environmental Medicine
|April 3, 2012
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Summary
This summary is machine-generated.

Astronauts on longer space missions experience more illusory sensations. Younger astronauts and those performing head movements during re-entry reported higher rates of these disorientation issues.

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Published on: October 27, 2020

Area of Science:

  • Spaceflight physiology
  • Human factors in aerospace

Background:

  • Capturing historical data on Space Shuttle crew experiences before retirement.
  • Investigating subjective sensory experiences during spaceflight transitions.

Purpose of the Study:

  • To analyze illusory sensations in Space Shuttle crew members.
  • To determine factors influencing these sensations, such as age, experience, and mission duration.

Main Methods:

  • Survey distributed to 77 Space Shuttle flight crew members; 40 responded (71 missions).
  • Analysis of subjective experiences related to 1-G to microgravity transitions and return.
  • Statistical examination of illusory sensations based on crew age, head motion during re-entry, flight experience, and mission duration.

Main Results:

  • No significant difference in illusory sensations between older and younger astronauts; younger crew reported twice the rate.
  • Trial head motions during re-entry did not aid readaptation, showing a higher rate of illusory sensations (38% vs. 15%).
  • Illusory sensations decreased with increased flight experience.
  • Longer duration missions (38% rate) correlated with more illusory sensations than shorter missions (24% rate).

Conclusions:

  • Long-duration space missions may increase disorientation, potentially impacting mission outcomes.
  • Further research into managing sensory-motor disturbances during extended spaceflight is warranted.