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Updated: Jun 28, 2026

µTongue: A Microfluidics-Based Functional Imaging Platform for the Tongue In Vivo
07:53

µTongue: A Microfluidics-Based Functional Imaging Platform for the Tongue In Vivo

Published on: April 22, 2021

A magneto-inductive sensor based wireless tongue-computer interface.

Xueliang Huo1, Jia Wang, Maysam Ghovanloo

  • 1Department of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30308, USA.

IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society
|November 8, 2008
PubMed
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We created a Tongue Drive system, a magnetic wireless tongue-computer interface, for individuals with severe disabilities. This innovative technology offers effective computer access and environmental control through natural tongue movements.

Area of Science:

  • Biomedical Engineering
  • Human-Computer Interaction
  • Assistive Technology

Background:

  • Individuals with severe disabilities often face challenges in accessing computers and controlling their environment.
  • Existing assistive technologies may have limitations in terms of flexibility, unobtrusiveness, or effectiveness.

Purpose of the Study:

  • To develop and evaluate a noninvasive, wireless tongue-computer interface for enhanced computer access and environmental control.
  • To provide a flexible and effective solution for individuals with severe disabilities.

Main Methods:

  • A small magnetic tracer is attached to the tongue to track movements.
  • Magneto-inductive sensors on a headset detect magnetic field variations.
  • Wireless transmission and signal processing with a differential field cancellation algorithm translate movements into commands.

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Main Results:

  • The Tongue Drive system was tested on able-bodied subjects, successfully translating tongue movements into computer control commands.
  • The system achieved an 87% command completion rate with a response time of 0.8 seconds.
  • An information transfer rate of approximately 130 bits per minute was achieved.

Conclusions:

  • The developed Tongue Drive system offers a promising noninvasive and wireless solution for computer access and environmental control.
  • This technology has the potential to significantly improve the quality of life for individuals with severe disabilities.
  • Further research and development can explore broader applications and user groups.