Affiliation:
1. Dunlap and Associates, Inc.
Abstract
Signal frequency (1, 10, and 20 signals per hour) and signal flash rate (one signal every 2 and 1¼ sec.) were varied in two vigilance experiments using a “noisy” simulated radar display as the sensory input. The results indicated small changes in vigilance over the course of 1 hr. The data suggest that vigilance will decrease, stay level, or improve as a function of signal frequency and the inherent detectability of the critical signal. It is suggested that vigilance behavior is related to the extent to which S can comprehend (and hence predict) the temporal pattern of critical signals. It is concluded that not enough is known about the conditions which determine the occurrences of decrement in vigilance.
Subject
Sensory Systems,Experimental and Cognitive Psychology
Cited by
4 articles.
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1. Sustained Visual Attention and Carbon Monoxide: Elimination of Adaptation Effects;Human Factors: The Journal of the Human Factors and Ergonomics Society;1981-04
2. Monitoring Performance as a Function of Rate of Ready Signals;Perceptual and Motor Skills;1976-12
3. BIBLIOGRAPHY;Vigilance: the Problem of Sustained Attention;1971
4. The Elicited Observing Rate and Decision Processes in Vigilance;Human Factors: The Journal of the Human Factors and Ergonomics Society;1965-04