Accession Number : ADA292538

Title :   Task-Dependent Effects of Automation: The Role of Internal Models in Performance, Workload, and Situational Awareness in a Semi-Automated Cockpit.

Descriptive Note : Final rept. Dec 91-Dec 93,

Corporate Author : NAVAL AIR WARFARE CENTER AIRCRAFT DIV WARMINSTER PA AIR VEHICLE AND CREW SYST EMS TECHNOLOGY DEPT

Personal Author(s) : Carmody, Meghan A.

PDF Url : ADA292538

Report Date : 01 MAR 1994

Pagination or Media Count : 462

Abstract : The present study investigated the effects of automating different aviation tasks on a pilot's ability to regain manual control following automation failure. The investigation employed a version of the Multi-Attribute Task (MAT) battery (Comstock and Arnegard, 1990) which presents subjects three aviation-relevant tasks: A Tracking task, a System Monitoring task, and a Fuel Management task. Specifically, this study examined task-specific effects on performance, workload, and situational awareness of removing the human operator from the control loop for long periods of time and then requiring him/her to suddenly reenter that loop. A hypothesized task distinction was formulated on the basis of the dynamic versus stable qualities of the internal cognitive model guiding the decision-making process within a particular task. This distinction is presented within the context of a theoretical model of human decision-making in complex, semi-automated cockpits. Results indicated task-specific effects of automation on human performance. Furthermore, data regarding task-specific effects of automation on situational awareness were strongly indicative of the hypothesized distinctions.

Descriptors :   *COCKPITS, *PERFORMANCE(HUMAN), *PILOTS, *MAN MACHINE SYSTEMS, *WORKLOAD, CONTROL, REMOVAL, DECISION MAKING, MANAGEMENT, MODELS, MONITORING, HUMANS, COGNITION, THEORY, TRACKING, LONG RANGE(TIME), FUELS, INTERNAL, OPERATORS(PERSONNEL), SEMIAUTOMATIC, LOOPS, AWARENESS.

Subject Categories : Aircraft
      Human Factors Engineering & Man Machine System

Distribution Statement : APPROVED FOR PUBLIC RELEASE