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Cue utilisation reduces effort but increases arousal during a process control task.

Mark W Wiggins1, Edward Whincup1, Jaime C Auton1

  • 1Centre for Elite Performance, Expertise, and Training, Macquarie University, Australia.

Applied Ergonomics
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Summary
This summary is machine-generated.

High cue utilization in process control operators reduces cognitive load and improves performance under stress. This suggests better operator selection for demanding tasks, though arousal levels may still increase.

Keywords:
ArousalCue utilisationEffortPhysiologyProcess-control

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Area of Science:

  • Human Factors
  • Cognitive Psychology
  • Industrial Engineering

Background:

  • Process control environments demand significant cognitive resources due to rapid changes.
  • High cue utilization can reduce cognitive load by efficiently processing relevant information.
  • Operator performance in dynamic systems depends on available cognitive resources.

Purpose of the Study:

  • To investigate the relationship between cue utilization and operator response to increased work demands.
  • To assess the impact of high cue utilization on subjective arousal and physiological effort.
  • To evaluate performance outcomes in a simulated rail control task under varying work demands.

Main Methods:

  • 41 participants were subjected to low and high work demand periods in a simulated rail control task.
  • Physiological measures (systolic blood pressure) and subjective arousal were recorded.
  • Performance metrics were assessed during both low and high work demand conditions.

Main Results:

  • High cue utilization correlated with reduced systolic blood pressure during high work demands.
  • Participants with high cue utilization maintained superior performance under increased work demands.
  • An increase in subjective arousal was observed even in high cue utilization participants.

Conclusions:

  • High cue utilization is beneficial for operator performance and physiological regulation in demanding process control settings.
  • The findings support the importance of cue utilization in selecting operators for high-reliability dynamic environments.
  • Further research may explore managing subjective arousal alongside performance optimization.