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Lipreading with tactile supplements.

A Boothroyd, T Hnath

    Journal of Rehabilitation Research and Development
    |January 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Tactile displays of fundamental frequency improved lipreading performance after brief training. While both temporal and temporal-spatial displays aided lipreading, neither proved superior to the other.

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    Area of Science:

    • Auditory Neuroscience
    • Human-Computer Interaction
    • Speech Perception

    Background:

    • Lipreading is a challenging visual task for speech comprehension.
    • Tactile sensory substitution offers potential aids for individuals with hearing impairments.
    • Fundamental frequency (pitch) information can be conveyed through tactile displays.

    Purpose of the Study:

    • To evaluate the effectiveness of tactile displays in augmenting lipreading performance.
    • To compare the impact of temporal-only versus temporal-spatial tactile feedback on lipreading.
    • To investigate the learning curve associated with using tactile aids for lipreading.

    Main Methods:

    • Two participants with normal hearing underwent brief training in lipreading.
    • Lipreading performance was assessed under three conditions: lipreading alone, with a single-channel (temporal) tactile display, and with a multichannel (temporal-spatial) tactile display.

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  • Performance was quantified as the percentage of correctly recognized words in unrelated sentences.

    • Main Results:

    • Lipreading performance significantly improved when augmented with tactile displays compared to lipreading alone.
    • No significant difference was found between the performance achieved with the temporal-only and temporal-spatial tactile displays.
    • A significant correlation between lipreading performance and training session number was observed exclusively for the temporal-spatial display.

    Conclusions:

    • Tactile sensory substitution can enhance lipreading ability, even after short training periods.
    • Both temporal and spatio-temporal tactile feedback of fundamental frequency show potential benefits for lipreading.
    • Further research is needed to differentiate the efficacy of various tactile display configurations for speech perception.