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Related Experiment Videos

A body-worn delayed auditory feedback fluency aid for stammerers.

J M Low, D D Lindsay

    Journal of Biomedical Engineering
    |October 1, 1979
    PubMed
    Summary

    A new wearable device uses delayed auditory feedback to improve stammering fluency. This portable aid, unlike previous masking devices, offers temporary relief from stammering by altering speech perception.

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    Area of Science:

    • Speech-language pathology
    • Biomedical engineering
    • Assistive technology

    Background:

    • Body-worn fluency aids for stammering have been conceptualized for 25 years.
    • Most existing devices utilize Auditory Feedback Masking.
    • Delayed Auditory Feedback (DAF) is a known fluency aid but typically requires desktop equipment.

    Purpose of the Study:

    • To introduce the first body-worn device based on Delayed Auditory Feedback (DAF).
    • To assess the efficacy of a portable DAF system for stammering.
    • To present early clinical trial results of the novel device.

    Main Methods:

    • Development of a compact, body-worn device fitting in a breast pocket.
    • Integration of a tie-pin microphone and two hearing aid earpieces.
    • Implementation of voice-actuated switching for clear, undelayed external sound perception.

    Main Results:

    • The device provides temporary fluency enhancement for individuals who stammer.
    • Early clinical trials indicate positive outcomes in improving speech fluency.
    • The wearable design allows for discreet and convenient use.

    Conclusions:

    • The developed body-worn DAF device represents a significant advancement in assistive technology for stammering.
    • This portable solution offers a practical alternative to existing, less portable fluency aids.
    • Further clinical evaluation is warranted to fully establish the long-term benefits and optimal use of this technology.

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