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Information access in a dual-task context: testing a model of optimal strategy selectionPilots were required to access information from a hierarchical aviation database by navigating under single-task conditions (Experiment 1) and when this task was time-shared with an altitude-monitoring task of varying bandwidth and priority (Experiment 2). In dual-task conditions, pilots had 2 viewports available, 1 always used for the information task and the other to be allocated to either task. Dual-task strategy, inferred from the decision of which task to allocate to the 2nd viewport, revealed that allocation was generally biased in favor of the monitoring task and was only partly sensitive to the difficulty of the 2 tasks and their relative priorities. Some dominant sources of navigational difficulties failed to adaptively influence selection strategy. The implications of the results are to provide tools for jumping to the top of the database, to provide 2 viewports into the common database, and to provide training as to the optimum viewport management strategy in a multitask environment.
Document ID
20040120745
Document Type
Reprint (Version printed in journal)
Authors
Wickens, C. D. (University of Illinois at Urbana-Champaign United States)
Seidler, K. S.
Date Acquired
August 22, 2013
Publication Date
September 1, 1997
Publication Information
Publication: Journal of experimental psychology. Applied
Volume: 3
Issue: 3
ISSN: 1076-898X
Subject Category
Behavioral Sciences
Funding Number(s)
CONTRACT_GRANT: NCC2-632
Distribution Limits
Public
Copyright
Other