Effects of warned and unwarned demand transitions on vigilance performance and stress
Document Type
Article
Publication Date
4-1-2008
Abstract
The present study was designed to explore the effects of warned and unwarned demand transitions in vigilance on performance and self-reported stress. Twenty observers (10 women and 10 men) were assigned at random to each of six conditions resulting from the factorial combination of signal salience (high and low salience signals) and switching (no switch, switch with warning, and switch without warning). Performance metrics and self-reported stress state (Task Engagement, Distress, and Worry) were collected. While demand transitions did destabilize subsequent performance, increasing intra-individual variability, overall performance efficiency was uninfluenced by either switching or warning. Demand transitions, whether warned or not, increased self-reported distress. A dynamic model of performance stress may be necessary and research employing vigilance tasks in the future may be useful for developing this performance-stress model.
Publication Title
Anxiety, Stress and Coping
Recommended Citation
Helton, W.,
Shaw, T.,
Warm, J.,
Matthews, G.,
&
Hancock, P.
(2008).
Effects of warned and unwarned demand transitions on vigilance performance and stress.
Anxiety, Stress and Coping,
21(2), 173-184.
http://doi.org/10.1080/10615800801911305
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/9420