INSTITUTE FOR DEFENSE ANALYSES ARLINGTON VA RESEARCH AND ENGINEERING SUPPORT DIV
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A brief section describes some areas of possible military interest in studies of stress--selection, classification, training, human factors and systems research and, of course, stress as related to the combat situation, among others. Since there is difficulty in accurately defining stress, it was considered most useful to describe stimulus situations which may lead to what is called stress and responses which may occur as a result of the stress situation. The stimuli considered are speeded information processing, overloading, environmental factors, perceived threat, physiological stimulation, isolation, confinement, blocking and frustration, and finally group pressures. The responses discussed are performance decrement, immobilization, inappropriate responses, physiological changes, verbal report, and performance enhancement. Considering the stimulus situations which lead to stress and the responses which may be evoked as a result of certain stimulus situations, an attempt is made to suggest research areas which may prove useful in better understanding the stress mechanism and its effect.