Subjective and physiological indicators of fatigue in a vigilance task.

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Authors
Innes, Henry Edgar.
Subjects
Advisors
Neil, Douglas E.
Date of Issue
1973-03
Date
March 1973
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
This research represents an investigation to determine intra - correlations among physiological parameters, a subjective rating of fatigue and performance during a vigilance task. Simple and multivariate analyses indicate positive relationships between subjective ratings of fatigue and heart rate, neck muscle tension level and two measures of sinus arryhthmia. Subjective ratings were found to correlate with time-on-task. Effects of motivation on sinus arryhthmia are discussed in the context of information processing. Single variate correlations between performance and heart rate, as well as with subjective ratings of fatigue, were observed with significant but low correlation coefficients. Multivariate correlation of neck muscle tension level and sinus arryhthmia were found to be significantly correlated with performance .
Type
Thesis
Description
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Department
Operations Research and Administrative Sciences
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Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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