A signal detection analysis of the effects of workload, task-critical and likelihood information on human alarm response

2005 ◽  
Author(s):  
Ernesto A. Bustamante
Keyword(s):  
Signal Detection ◽  
Alarm Response ◽  
Detection Analysis ◽  
Signal Detection Analysis

A Signal Detection Analysis of the Effects of Workload, Task-Critical and Likelihood Information on Human Alarm Response

2005 ◽  
Vol 49 (17) ◽  
pp. 1513-1517 ◽  
Author(s):  
Ernesto A. Bustamante
Keyword(s):  
Signal Detection ◽  
Response Bias ◽  
Secondary Task ◽  
Alarm System ◽  
Alarm Response ◽  
Alarm Signals ◽  
Critical Information ◽  
Detection Analysis ◽  
High Workload ◽  
Signal Detection Analysis

The purpose of this study was to examine the effects of task-critical and likelihood information on participants' sensitivity and bias to alarm signals under varying levels of workload. Participants performed a complex primary task at the same time they performed a secondary task. Likelihood information was manipulated through the use of either a Binary Alarm System (BAS) or a Likelihood Alarm System (LAS). As expected, task-critical and likelihood information significantly increased participants' sensitivity, and this varied across workload levels. Participants benefited from task-critical information only when they were interacting with the BAS. However, participants benefited from likelihood information regardless of task-critical information, particularly under high-workload conditions. Furthermore, task-critical information increased participants' response bias under low workload, making them less likely to respond to alarm signals. These results demonstrated the superior advantage of an LAS over a traditional BAS and showed support for the use of an LAS as a way to mitigate the cry-wolf effect above and beyond task-critical information.

scholarly journals A signal-detection analysis of eyewitness identification across the adult lifespan.

2017 ◽  
Vol 32 (3) ◽  
pp. 243-258 ◽  
Author(s):  
Melissa F. Colloff ◽  
Kimberley A. Wade ◽  
John T. Wixted ◽  
Elizabeth A. Maylor
Keyword(s):  
Signal Detection ◽  
Eyewitness Identification ◽  
Adult Lifespan ◽  
Detection Analysis ◽  
Signal Detection Analysis
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