The purpose of this study was to examine how workload and likelihood information would affect participants’ responses to alarm signals while they performed a battery of tasks. As expected, participants’ overall response rates and false alarm response rates were significantly lower, and true alarm response rates were significantly higher when they used a likelihood alarm system. These results were particularly noticeable under high workload conditions. Results from this study suggest that although people may respond less often to alarm signals when they are provided with likelihood information, they will more likely respond to true signals rather than false alarms. Therefore, designers should incorporate likelihood information in alarm systems to maximize people’s ability to differentiate between true and false alarms and respond appropriately.
Bustamante, E. A.,
& Bliss, J. P.
(2005). Effects of Workload and Likelihood Information on Human Response to Alarm Signals. 2005 International Symposium on Aviation Psychology, 97-101.