Abstract
Multiple physiological measurements as well as a self-assessment of arousal was made in eight men on the first, third, and fifth days of bedrest. On the third day, additional measurements of performance on memory and dexterity tasks were made. Univariate analysis did not reveal any physiological variable to either predict subsequent performance well or to co-vary acutely with it; however, self-rating scores did prove to be useful predictors of subsequent performance. Principal components analysis suggested an“alertness” factor comprised of physiological measures as well as selfratings which helped in predicting better performance. Although the individual patterns of correlations between variables on each of the three test days was variable, even more variability between subjects was found on the performance testing day. We believe this effect of behavioral activation may be due to the injection of common, slow temporal trends into many of the different data sets.
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Supported by a contract from NASA. At the time of this work, BHN was a Career Development Awardee of the Veterans Administration.
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Natelson, B.H., Deroshia, C., Adamus, J. et al. Relations between visceral and behavioral function in men at bedrest. Pav. J. Biol. Sci. 18, 161–168 (1983). https://doi.org/10.1007/BF03019168
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DOI: https://doi.org/10.1007/BF03019168