出版社：National Institute of Occupational Safety and Health
摘要：Influence of unpleasant feeling toward task performance on the stress response of healthy young male subjects at two sorts of mental tasks was investigated. A simple calculation task assigned to 10 subjects for 8 hr a day using a new signal indicator was accompanied by increase in serum protein level and decrease in pulse rate, systolic blood pressure, pulse pressure and serum A/G in the morning, but not in the afternoon. Unpleasantness rate during this task performance had converse correlation with the serum level of proteins in the morning but not in the afternoon. "Addition-subtraction task" of two figures assigned to 20 subjects for 1 hr at the task density of 80% of individual maximum performance using a signal indicator evidently induced the stress response such as increases in pulse rate, diastolic blood pressure and the serum level of proteins, and decrease in the serum water content. In this case, there was no correlation between the physiological stress indices and unpleasantness rate in task performance. Moreover, neither the stress response nor the unpleasant feeling had relation to physical fitness of the subjects. It was deduced that the stress response during mental tasks was hardly influenced by unpleasant feeling toward task performance or by physical fitness of subjects.
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