Description

To ensure mission success, astronauts must maintain a high level of performance even when work-rest schedules result in chronic sleep restriction and circadian misalignment, both of which contribute to fatigue and performance deficits unless effective countermeasures are used. We are proposing to build an Individualized Fatigue Meter that incorporates light inputs, sleep history; physical activity; other physiological inputs; and brief performance tests (e.g. winSCAT, PVT SelfTest) to provide immediate individualized feedback about alertness. For the past 8 years, we have been actively developing many of the system components (funded by NASA, DOD, and NIH) that can be leveraged in this project. The result of this project through Phase II will be a system prototype that can be deployed in space analog environments for validation testing and ultimately deployed on ISS and missions to Moon and Mars. The critical need for an Individualized Fatigue Meter has been identified as a priority outlined in the Behavioral Health and Performance Integrated Research Plan GAP 1.1.1. During Phase I, we will perform a literature review of fatigue monitoring technologies, develop an engineering requirements document, and identify key features of mathematical models needed to design a state-of-art Individualized Fatigue Meter (Phase I TRL of 3-4).

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