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Journal Article

Citation

Moray N, Rotenberg I. Ergonomics 1989; 32(11): 1319-1342.

Copyright

(Copyright © 1989, Informa - Taylor and Francis Group)

DOI

unavailable

PMID

2632250

Abstract

Operators controlled a simulated thermal hydraulic system based on Crossman's waterbath task. They were required to keep the system at set points for temperature, level and flow rates. The system was subjected to disturbances and to failures, which the operators were required to manage. Behavioural data were collected in the form of keystroke commands, and in addition eye movements were measured. Evidence for 'cognitive lockup' and for a preference for serial fault management were found. Fixation durations do not change, but faulty subsystems are examined more frequently. During lockup other subsystems may be examined but action on them is delayed. Eye movements give considerable additional insight into the nature of process control information processing compared with traditional measures of operator performance.


Language: en

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