A Descriptive Framework for the Evaluation of Stress Effects on Operator Performance

Abstract

In this paper we provide a general descriptive framework that relates the action of stress on operator performance capacity. The key advantage of our approach is that it allows us to capture simultaneously the influences of both physical and cognitive forms of stress and their singular and interactive effects on response efficiency. This is accomplished within the model since we propose that response processes to physiological challenge and psychological challenge are fundamentally identical in their mode of operation. By considering the commonalities of brain function with the response processes of other organs of the body, we can now use the extensive existing body of physiological insight to provide us with guiding principles to explore undoubtedly more complex cognitive responses to stress. This descriptive framework represents the foundation upon which a fully articulated theory of stress and performance is being erected.

The Impact of Induced Stress Upon Selective Attention in Multiple Object Tracking

“…A number of recent topical reviews (Hancock and Ganey, 2004;Hancock et al, 2001;Hancock, Szalma, & Weaver, 2002; as well as empirical studies (Szalma, 2002;Grier et al, 2003;Ross, Szalma, Thropp, & Hancock, 2003) have focused specifically upon the effects of stress on perceptual and cognitive processing, highlighting both the beneficial and detrimental influences stress may have upon performance across varied scenarios. Within their model for the relationship between stress and performance, Hancock and Warm (1989) also emphasize that describing the effects of external stressors upon cognitive function may be further complicated by the fact that many cognitive and perceptual performance tasks are inherent stressors themselves.…”