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Journal Article

Citation

Morris CH, Leung YK. Ergonomics 2006; 49(15): 1581-1596.

Affiliation

Faculty of Engineering and Industrial Sciences, Swinburne University of Technology, PO Box 218, Hawthorn, 3122 Victoria, Australia.

Copyright

(Copyright © 2006, Informa - Taylor and Francis Group)

DOI

10.1080/00140130600857987

PMID

17090505

Abstract

The purpose of this study was to investigate the effects of increasing mental demands on various aspects of aircrew performance. In particular, the robustness of the prioritization and allocation hierarchy of aviate-navigate-communicate was examined, a hierarchy commonly used within the aviation industry. A total of 42 trainee pilots were divided into three workload groups (low, medium, high) to complete a desktop, computer-based exercise that simulated combinations of generic flight deck activities: flight control manipulation, rule-based actions and higher level cognitive processing, in addition to Air Traffic Control instructions that varied in length from one chunk of auditory information to seven chunks. It was found that as mental workload and auditory input increased, participants experienced considerable difficulty in carrying out the primary manipulation task. A similar decline in prioritization was also observed. Moreover, when pilots were under a high mental workload their ability to comprehend more than two chunks of auditory data deteriorated rapidly.


Language: en

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