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Human-computer interface controlled by the lip.

Marcelo Archanjo José, Roseli de Deus Lopes

    IEEE Journal of Biomedical and Health Informatics
    |January 7, 2015
    PubMed
    Summary

    The lower lip can effectively control computer input devices, offering a new interface for individuals with tetraplegia. Its performance rivals that of a thumb, establishing a baseline for future assistive technology research.

    Area of Science:

    • Human-Computer Interaction
    • Rehabilitation Engineering
    • Assistive Technology

    Background:

    • Innovative human-computer interfaces are crucial for individuals with tetraplegia.
    • Existing control methods may have limitations for certain user groups.
    • The lower lip presents an under-explored potential for assistive control.

    Purpose of the Study:

    • To evaluate the efficacy of the lower lip as a control mechanism for an input device.
    • To assess lower lip control performance against established benchmarks using Fitts' law.
    • To establish a foundational understanding for developing lip-controlled assistive technologies.

    Main Methods:

    • Utilized Fitts' law (ISO/TS 9241-411:2012) to quantify human-computer interface performance.
    • Evaluated the lower lip's potential to control a specific input device.

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  • Compared lower lip control throughput with thumb control throughput under identical conditions.

    • Main Results:

    • Lower lip control demonstrated a throughput comparable to thumb control.
    • Performance metrics were measured using the standardized Fitts' law protocol.
    • The study established a quantifiable baseline for lower lip input device operation.

    Conclusions:

    • The lower lip is a viable control source for human-computer interfaces.
    • This finding supports the development of novel assistive technologies for people with tetraplegia.
    • Further research can build upon these results to optimize lip-based control systems.