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Effects of Long-Duration Spaceflight on Training Retention (Training_Retention)
Research Area:
Behavior and performance
Species Studied
Scientific Name: Homo sapiens Species: Human

NASA’s future deep space missions to the lunar environment, lunar surface, and to Mars involve both a long-duration and long communication delays. These factors drive a requirement for durable training, specifically training that can survive long delays between time of training and actual use of the learned knowledge and skills. In addition, the training needs to be flexible to allow for transfer to new and unexpected situations beyond those included in a standard training regimen, as it will not be possible to accurately anticipate all possible situations in which crewmembers might encounter. Furthermore, onboard just-in-time (JIT) training and performance support tools will be required.

On such long-duration space missions with communication delays, the crew will need to be semi-autonomous at minimum. Current crew training practices are based on the assumption that ground support is available continuously and in real-time, which will not be the case in future long-duration space missions. With no direct experience with long-duration space missions, serious gaps exist in current data upon which new crew training must be based. This experiment aims to test the retention and transfer of specific motor, perceptual and cognitive processes learned pre-launch to assess the need for onboard refresher and JIT training.

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Conclusion Time
Initiation Time
Response time
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Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
Ground 05/01/2009 In Progress

Human Research Program (HRP) Human Research Roadmap (HRR) Information
Crew health and performance is critical to successful human exploration beyond low Earth orbit. The Human Research Program (HRP) investigates and mitigates the highest risks to human health and performance, providing essential countermeasures and technologies for human space exploration. Risks include physiological and performance effects from hazards such as radiation, altered gravity, and hostile environments, as well as unique challenges in medical support, human factors, and behavioral health support. The HRP utilizes an Integrated Research Plan (IRP) to identify the approach and research activities planned to address these risks, which are assigned to specific Elements within the program. The Human Research Roadmap is the web-based tool for communicating the IRP content.

The Human Research Roadmap is located at:

+ Click here for information of how this experiment is contributing to the HRP's path for risk reduction.

Additional Information
Managing NASA Center
Johnson Space Center (JSC)
Responsible NASA Representative
Institutional Support
National Aeronautics and Space Administration (NASA)
Alternate Experiment Name
Proposal Date
Proposal Source
Directed Research