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During spaceflights, astronauts are exposed to many stressors (e.g., microgravity, confinement) that may impair human information-processing capabilities. In order to analyze the possible effects of the space environment on human time-sharing efficiency, a single-case experiment was conducted in which the time course of dual-task performance (unstable(More)
In contrast to performance in cognitive tasks, tracking performance tends to deteriorate fairly consistently during spaceflight. We address the question whether this decrement results from specific effects of microgravity on motor control or from non-specific effects of the various other stressors present. In a case study we generalize the findings obtained(More)
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