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Main Title: Operators’ Adaption to Unreliability of Alarm Systems: A Performance and Eye-Tracking Analysis
Author(s): Onnasch, Linda
Ruff, Stefan
Manzey, Dietrich
Type: Article
Language Code: en
Abstract: Operators in complex environments are supported by alarm-systems that indicate when to shift attention to certain tasks. As alarms are not perfectly reliable, operators have to select appropriate strategies of attention allocation in order to compensate for unreliability and maintain overall performance. This study investigates how humans adapt to differing alarm-reliabilities. Within a multi-tasking flight simulation, participants were randomly assigned to four alarm-reliability conditions (68.75%, 75%, 87.5%, 93.75%), and a manual control group. In experimental conditions, one out of three subtasks was supported by an alarm-system. Compared to manual control, all experimental groups benefited from alarms in the supported task, with best results for the highest reliability condition. However, analyses of performance and eye-tracking data revealed that the benefit of the lowest reliability group was associated with an increased attentional effort, a more demanding attention allocation strategy, and a declined relative performance in a non-supported task. Results are discussed in the context of recent research.
Issue Date: 2012
Date Available: 8-Jan-2019
DDC Class: 610 Medizin und Gesundheit
Subject(s): operators' adaption
alarm systems
eye-tracking analysis
Journal Title: Proceedings of the Human Factors and Ergonomics Society Annual Meeting
Publisher: SAGE Publications
Publisher Place: Washington, DC
Volume: 56
Issue: 1
Publisher DOI: 10.1177/1071181312561059
Page Start: 248
Page End: 252
EISSN: 1541-9312
ISSN: 1071-1813
Notes: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
Appears in Collections:FG Arbeits-, Ingenieur- und Organisationspsychologie » Publications

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