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Auditory implants and tactile aids for the profoundly deaf.

J M Pickett, W McFarland

    Journal of Speech and Hearing Research
    |March 1, 1985
    PubMed
    Summary

    This review compares cochlear implants and tactile aids for speech perception. While multichannel implants show better average results, neither technology currently offers substantial lip-reading assistance.

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    Area of Science:

    • Audiology
    • Biomedical Engineering
    • Speech and Hearing Science

    Background:

    • Speech perception relies heavily on auditory input.
    • Technological advancements offer alternative sensory pathways for communication.
    • Cochlear implants and tactile aids aim to improve speech understanding for individuals with hearing impairments.

    Purpose of the Study:

    • To review and compare speech perception capabilities using implanted electrodes versus tactile aids.
    • To discuss factors influencing performance, including implant channel count and use of residual hearing.
    • To explore potential complementary systems integrating auditory and tactile information.

    Main Methods:

    • Review of existing research data on speech perception via cochlear implants and tactile aids.
    • Comparison of communication aid effectiveness between the two modalities.
    • Analysis of performance variations based on implant type, subject experience, and testing methodologies.

    Main Results:

    • Direct comparison is challenging due to diverse research methods and subjects.
    • Both cochlear implants and tactile aids currently provide only modest support for lip-reading.
    • Multichannel cochlear implants generally outperform single-channel implants, though best single-channel results can be comparable.
    • Significant inter-subject variability exists in performance with identical implants.
    • Highly practiced tactile aid users demonstrate performance levels similar to better cochlear implant users.

    Conclusions:

    • Neither cochlear implants nor tactile aids currently provide a comprehensive solution for speech perception.
    • Further research is needed to overcome methodological differences and enhance performance.
    • Future systems may benefit from combining auditory and tactile sensory information for improved communication outcomes.

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