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Eye movement control of computer functions

J J Tecce1, J Gips, C P Olivieri

  • 1Psychology Department, Boston College, Chestnut Hill, MA 02167, USA. tecce@bc.edu

International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology
|July 17, 1998
PubMed
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Eye movements can control computer functions, enabling individuals with motor impairments to communicate. This technology translates electrooculography signals into cursor control for typing and computer interaction.

Area of Science:

  • Biomedical Engineering
  • Human-Computer Interaction
  • Neuroscience

Background:

  • Traditional computer interfaces can be challenging for individuals with severe motor disabilities.
  • Assistive technologies are crucial for enhancing communication and independence in special populations.

Purpose of the Study:

  • To demonstrate the feasibility of controlling computer functions using only eye movements.
  • To explore eye-tracking as a method for computer-assisted communication.

Main Methods:

  • Utilized horizontal and vertical electrooculography (EOG) to record electrical potentials from eye movements.
  • Transformed EOG signals into a cursor on a computer display, representing a fixation point.
  • Enabled subjects to select letters from an alphabet matrix using eye-guided cursor placement.

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Main Results:

  • Successfully demonstrated control of computer functions through voluntary eye movements in 14 normal volunteers.
  • Subjects could spell words and construct sentences by navigating an on-screen alphabet matrix with their eyes.
  • Validated the potential of eye-tracking for computer-assisted communication.

Conclusions:

  • Eye-controlled computing via EOG is a viable technique for computer-assisted communication.
  • This technology offers a promising communication avenue for individuals with motor paralysis and speech impairments.
  • Further development could significantly benefit developmentally-disabled individuals requiring alternative communication methods.