Effects of Visual Interruptions on Task Times and Accuracies
Abstract
Additional computer screens and visual displays are often used to increase operator efficiency while performing tasks that require vigilance and selective attention. However, this additional information comes to the operators (drivers, security officials, air traffic controllers etc.) at a cost. In general operators are forced to multitask but sometimes multitasking is not possible and interruptions of tasks occur. Multiple Resource Theory suggests that humans have limited capacity for information processing especially if the tasks require the same resource, in this case visual resource. In this study, the effect of visual interruptions on primary task performances (in terms of errors made), and interrupting task times and performances were analyzed. Lafayette Instruments' DIVID software was used as the primary task and MVPT-3 visual perception test were used as interrupting task. Thirty subjects participated in the experiments. Repetitive measures ANOVA were used to analyze the data. The results showed significant decrease in primary and interrupting task performances as well as increase in interrupting task times.
Recommended Citation
M. S. Gulum and S. L. Murray, "Effects of Visual Interruptions on Task Times and Accuracies," Proceedings of the 62nd IIE Annual Conference and Expo (2012, Orlando, FL), pp. 2918 - 2926, Institue of Industrial and Systems Engineers (IISE), May 2012.
Meeting Name
62nd IIE Annual Conference and Expo (2012: May 19-23, Orlando, FL)
Department(s)
Engineering Management and Systems Engineering
Second Department
Psychological Science
Keywords and Phrases
Air traffic control; Data processing; Software testing; Air traffic controller; Mental work; Multiple resources; Operator efficiency; Selective attention; Vigilance; Visual interruptions; Visual perception; Exhibitions
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2012 Institue of Industrial and Systems Engineers (IISE), All rights reserved.
Publication Date
23 May 2012