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Related Experiment Videos

Information access in a dual-task context: testing a model of optimal strategy selection.

C D Wickens1, K S Seidler

  • 1University of Illinois at Urbana-Champaign, USA. cwickens@psych.uiuc.edu

Journal of Experimental Psychology. Applied
|September 7, 2001
PubMed
Summary

Pilots struggled with database navigation when multitasking. Findings suggest improved database tools and viewport management training for pilots in complex aviation environments.

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Area of Science:

  • Human Factors
  • Cognitive Psychology
  • Aviation Psychology

Background:

  • Pilots access critical information from hierarchical aviation databases.
  • Multitasking environments in aviation increase cognitive load and task complexity.
  • Effective information access is crucial for flight safety and performance.

Purpose of the Study:

  • To investigate pilot performance in accessing hierarchical aviation databases under single-task and dual-task conditions.
  • To analyze pilot strategies for allocating resources, specifically viewports, between an information access task and an altitude-monitoring task.
  • To identify factors influencing viewport allocation and navigational difficulties in a multitasking flight environment.

Main Methods:

  • Experiment 1: Pilots navigated a hierarchical database under single-task conditions.

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  • Experiment 2: Pilots performed the database navigation task while time-sharing with an altitude-monitoring task of varying bandwidth and priority.
  • Dual-task analysis involved observing viewport allocation strategies between the information task and the monitoring task.

    • Main Results:

    • Viewport allocation was generally biased towards the monitoring task.
    • Allocation strategy showed limited sensitivity to task difficulty and relative priorities.
    • Certain navigational difficulties did not adaptively influence the viewport selection strategy.
    • Pilots' dual-task performance was impacted by suboptimal viewport management.

    Conclusions:

    • Current viewport management strategies may not be optimal for pilots in complex aviation scenarios.
    • Recommendations include developing tools for direct database access (e.g., jumping to the top) and providing dual-viewports.
    • Enhanced training on optimum viewport management strategies is essential for improving pilot performance in multitask environments.