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Related Experiment Videos

Acoustic reflex threshold measurement in hearing aid selection.

B Z Rappaport, C A Tait

    Archives of Otolaryngology (Chicago, Ill. : 1960)
    |March 1, 1976
    PubMed
    Summary

    This study found that the optimal hearing aid gain setting for speech discrimination in sensorineural hearing loss patients was at the acoustic reflex threshold. Other gain settings yielded similar, but not superior, results.

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    Area of Science:

    • Audiology
    • Hearing Science
    • Speech-Language Pathology

    Background:

    • Sensorineural hearing loss (SNHL) affects millions, impacting speech understanding.
    • Hearing aid technology aims to improve audibility and speech intelligibility.
    • Optimizing hearing aid gain is crucial for effective rehabilitation.

    Purpose of the Study:

    • To evaluate the impact of different hearing aid gain settings on speech discrimination in SNHL patients.
    • To compare a novel gain setting derived from acoustic reflex thresholds with traditional methods.

    Main Methods:

    • 18 patients with SNHL underwent speech discrimination testing.
    • Monosyllabic word lists with competing discourse at +10 dB SNR were used.
    • Four hearing aid gain settings were tested: acoustic reflex threshold, +/- 10 dB from it, and a traditional setting.

    Main Results:

    • Mean speech discrimination scores were highest when hearing aid gain was set at the acoustic reflex threshold.
    • Scores at the other three gain settings were comparable to the reflex threshold setting.

    Conclusions:

    • Acoustic reflex threshold-based gain setting may optimize speech discrimination for SNHL patients.
    • Further research is warranted to validate this finding across diverse patient populations and hearing aid features.

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