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High-frequency Békésy audiometry. V. Excursion width.

M T Gauz, M M Smith, E Kocmond

    Audiology : Official Organ of the International Society of Audiology
    |January 1, 1984
    PubMed
    Summary
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    Young adults showed Békésy tracing excursion widths of 5-15 dB for high-frequency tones. These findings help validate responses in clinical Békésy audiometry for hearing assessments.

    Area of Science:

    • Audiology
    • Auditory Physiology
    • Psychoacoustics

    Background:

    • Békésy audiometry is a standard audiological test.
    • Understanding normal response patterns is crucial for accurate interpretation.
    • High-frequency hearing assessment requires specific Békésy tracing analysis.

    Purpose of the Study:

    • To characterize Békésy tracing excursion widths in normally hearing young adults for high-frequency pure tones.
    • To determine if excursion width varies systematically with frequency in the 7-19 kHz range.
    • To evaluate the utility of these findings for validating clinical Békésy audiometry responses.

    Main Methods:

    • 26 normally hearing young adults participated.
    • Pure tones from 7 to 19 kHz were presented at 2.5 Hz pulsing.

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  • Standard clinical Békésy audiometry parameters were used (1 octave/min chart rate, 2.5 dB/s attenuation rate).

    • Main Results:

    • Subjects produced median Békésy tracing excursion widths between 5 and 15 dB.
    • No systematic change in excursion width was observed across the tested high-frequency range.
    • The observed excursion widths provide a normative range for high-frequency Békésy tracings.

    Conclusions:

    • The study establishes normative Békésy tracing excursion widths for high frequencies (7-19 kHz) in young adults.
    • These findings support the validation of patient responses in clinical Békésy audiometry.
    • The consistent excursion width suggests a stable underlying auditory processing mechanism for these frequencies.