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Human Spaceflight Capabilities

Countermeasures to Neurobehavioral Deficits from Cumulative Sleep Deprivation During Space Flight: Dose-Response Effects of Recovery Sleep Opportunities

Completed Technology Project

Project Introduction

Data collection is now complete. Seventy-two subjects completed the 16 day in-laboratory study protocol (for a total of 1152 laboratory days). We are currently in the process of performing analyses on the data collected. Specifically, we are analyzing the neurobehavioral performance changes across the experimental protocol, and the recovery phase. We are in the process of manual scoring and analysis of the polysomnographic and cardiovascular data. Preliminary data suggests that a single sleep period of 8h, 10h or 12h after 5 nights of 4h sleep, provides substantial acute recovery, but not protection against the immediate reappearance of performance deficits when it is followed by 5 additional nights of sleep restriction.

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This is a historic project that was completed before the creation of TechPort on October 1, 2012. Available data has been included. This record may contain less data than currently active projects.