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Noninvasive tongue-motion controlled computer mouse for the disabled.

C-H Chou1, Y-S Hwang1, C-C Chen2

  • 1Department of Electronic Engineering and Graduate Institute of Computer and Communication Engineering, National Taipei University of Technology, Taipei, Taiwan.

Technology and Health Care : Official Journal of the European Society for Engineering and Medicine
|February 3, 2016
PubMed
Summary

This study introduces a non-invasive tongue movement computer mouse system for individuals with tetraplegia. This innovative assistive technology enables computer control through simple tongue movements, enhancing communication and environmental interaction for patients with spinal cord injuries.

Keywords:
Tongue drive systemassistive technologyhuman computer interfacenon-invasive

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Area of Science:

  • Biomedical Engineering
  • Assistive Technology
  • Human-Computer Interaction

Background:

  • Spinal cord injuries can lead to tetraplegia, significantly impairing a patient's ability to control their environment.
  • Current communication methods for such patients often rely on invasive tongue movement tools.

Purpose of the Study:

  • To design and develop a non-invasive computer mouse system utilizing tongue movement.
  • To enable individuals with paralysis to control computers and communicate with their environment.

Main Methods:

  • A pressure sensor and assistive holder were developed to detect pressure changes from the mylohyoid muscle in the lower jaw.
  • These pressure changes are translated into computer mouse control signals.
  • The system was evaluated using four training modes based on ISO9241-Part 9 standards.

Main Results:

  • Data collected from five participants over seven days demonstrated the system's stability and practicality.
  • Key performance metrics including throughput, path efficiency, completion time, and reaction time were analyzed.
  • The results indicate the system's viability as an assistive tool for individuals with disabilities.

Conclusions:

  • The developed non-invasive tongue movement sensing system offers a significant advancement over existing invasive methods.
  • It provides a simple, non-invasive means for patients to control computer devices using natural tongue movements.
  • This technology has the potential to greatly improve the quality of life and independence for individuals with severe physical impairments.