Use of Warnings in an Attentionally Demanding Detection Task

Abstract

The study assessed the use of binary warnings in a detection task with high attentional demands. Participants in the experiment had to decide whether to continue or halt production based on a briefly displayed number that indicated a temperature level. The short time that the number was displayed required that participants focus on the display area. Participants were rewarded for production when the system was intact and were heavily penalized for decisions to produce under dangerous temperature levels. Color-coded warning cues (green for safe, red for danger) were displayed to the participants prior to number presentation. The experimental conditions differed in the validity of the cue and in the probability of red cues. Results showed significant learning for all conditions. Participants tended to ignore the nonvalid and low-validity cues and rely only on highly valid cues. However, the mere existence of cues affected participants' general tendency to take risks. Actual or potential applications of this research include improving systems that require operators to devote attention to complex tasks while receiving and responding to warnings.

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References

Breznitz, S. (1983). Cry-wolf: The psychology of false alarms. Mahwah, NJ: Erlbaum.

Getty, D. J. , Swets, J. A. , Pickett, R. M. , & Gonthier, D. (1995). System operator response to warnings of danger: A laboratory investigation of the effects of the predictive value of a warning on human response time. Journal of Experimental Psychology: Applied, 1, 19–33.

Gopher, D. , Itkin-Webman, T. , Erev, I. , Meyer, J. , & Armoni, L. (2000). The effect of shared responsibility and competition in perceptual games: A test of a cognitive game-theoretical extension of signal-detection theory. Journal of Experimental Psychology: Human Perception and Performance, 26, 325–341.

Green, D. M. , & Swets, J. A. (1966). Signal detection theory and psychophysics. New York: Wiley.

Meyer, J. (in press). Effects of warning validity and proximity on the response to warnings. Human Factors.

Meyer, J. , & Ballas, E. (1997). A two-detector signal detection analysis of learning to use alarms. In Proceedings of the Human Factors and Ergonomics Society 40th Annual Meeting (pp. 186–189). Santa Monica, CA: Human Factors and Ergonomics Society.

Montgomery, D. A. (1999). Human sensitivity to variability information in detection decisions. Human Factors, 41, 90–105.

Montgomery, D. A. , & Sorkin, R. D. (1996). Observer sensitivity to source reliability in a multielement visual display. Human Factors, 38, 484–494.

Mosier, K. L. , Skitka, L. J. , Heers, S. , & Burdick, M. D. (1998). Automation bias: Decision making and performance in high-tech cockpits. International Journal of Aviation Psychology, 8, 47–63.

10.

Murrell, G. (1977). Combination of evidence in a probabilistic visual search and detection task. Organizational Behavior and Human Performance, 18, 3–18.

11.

Navon, D. , & Gopher, D. (1979). On the economy of the human processing system. Psychological Review, 86, 214–255.

12.

Parasuraman, R. , Molloy, R. , & Singh, I. L. (1993). Performance consequences of automation-induced “complacency.” International Journal of Aviation Psychology, 3, 1–23.

13.

Parasuraman, R. , & Riley, V. (1997). Humans and automation: Use, misuse, disuse, and abuse. Human Factors, 39, 230–253.

14.

Robinson, D. E. , & Sorkin, R. D. (1985). A contingent criterion model of computer assisted detection. In R. Eberts & C. G. Eberts (Eds.), Trends in ergonomics/human factors: Vol. II (pp. 75–82). Amsterdam: North Holland.

15.

Sorkin, R. D. (1988). Why are people turning off our alarms? Journal of the Acoustical Society of America, 84, 1107–1108.

16.

Sorkin, R. D. , & Woods, D. D. (1985). Systems with human monitors: A signal detection analysis. Human-Computer Interaction, 1, 49–75.

17.

Svenson, O. , & Maule, J. M. (1993). Time pressure and stress in human judgment and decision making. New York: Plenum.