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Related Experiment Videos

Sharing control between humans and automation using haptic interface: primary and secondary task performance

Paul G Griffiths1, R Brent Gillespie

  • 1Department of Mechanical Engineering, University of Michigan, Ann Arbor 48109, USA. paulgrif@umich.edu

Human Factors
|January 27, 2006
PubMed
Summary

This study introduces haptic displays for human-automation control sharing. Haptic feedback improves task performance and reduces cognitive load, enhancing control sharing over traditional interfaces.

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Area of Science:

  • Human-Computer Interaction
  • Robotics
  • Control Systems

Background:

  • Traditional automation interfaces often lack intuitive feedback mechanisms.
  • Sharing control between humans and automation presents challenges in maintaining situational awareness and performance.
  • Haptic feedback offers a continuous, non-visual modality for conveying automation status and intentions.

Purpose of the Study:

  • To introduce and evaluate a paradigm for human-automation control sharing using haptic feedback.
  • To demonstrate that haptic displays can improve primary task performance.
  • To show that haptic automation can reduce perceptual demands or enhance secondary task performance.

Main Methods:

  • Developed a control sharing paradigm where automation acts via a motorized manual control interface (haptic display).

Related Experiment Videos

  • Conducted three experiments with 11 participants performing a lane-following task on a driving simulator.
  • Automation provided assistance through torques applied to a motorized steering wheel, simulating a copilot.

    • Main Results:

    • Haptic assist significantly improved lane following performance by at least 30% (p < .0001).
    • Visual demand was reduced by 29% (p < .0001) with haptic assistance.
    • Reaction time in a secondary tone localization task improved by 18 ms (p = .0009).

    Conclusions:

    • Haptic display-based automation effectively supports human-automation control sharing.
    • This approach enhances primary task performance and reduces cognitive load, freeing attention for secondary tasks.
    • Haptic interfaces represent a promising alternative to traditional push-button automation for improved human-machine collaboration.