Maintenance of vigilance by non-task-related stimulation in the monitoring environment.
The effects of non-task-related stimulation on the performance of a simple visual vigilance task were investigated. 40 subjects monitored a stimulated CRT display for two 90-min sessions. The independent variables were variable vs constant intensity lighting and variable vs constant intensity noise. Probability of detection was not significantly different for the noise conditions; however, probability of detection was significantly higher under variable than under constant intensity lighting.
D000161:Acoustic Stimulation; D001143:Arousal; D001288:Attention; D006185:Habituation, Psychophysiologic; D006801:Humans; D008029:Lighting; D008297:Male; D009622:Noise; D010775:Photic Stimulation; D014796:Visual Perception