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Related Experiment Videos

Auditory brainstem and middle latency evoked response sensitivity near threshold

F E Musiek, N A Geurkink

    The Annals of Otology, Rhinology, and Laryngology
    |May 1, 1981
    PubMed
    Summary

    Middle latency evoked response (MLER) testing shows greater wave frequency at low sensation levels compared to auditory brainstem response (ABR) testing, suggesting MLER

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    Area of Science:

    • Audiology
    • Neuroscience
    • Electrophysiology

    Background:

    • Auditory brainstem response (ABR) and middle latency evoked response (MLER) are electrophysiological methods for assessing hearing sensitivity.
    • ABR is currently more popular, but MLER offers distinct advantages in specific audiological assessments.

    Purpose of the Study:

    • To compare the sensitivity and characteristics of ABR and MLER waves at low sensation levels.
    • To evaluate the potential of MLER as a complementary or alternative measure to ABR in audiological testing.

    Main Methods:

    • Electrophysiological testing using ABR and MLER.
    • Analysis of wave occurrence frequency, latency consistency, and amplitude at low sensation levels.

    Main Results:

    • MLER waves occurred more frequently than ABR waves at low sensation levels.
    • MLER wave Pa demonstrated the highest sensitivity, followed by ABR wave V.
    • MLER waves exhibited larger amplitudes, while ABR waves showed more consistent latencies.

    Conclusions:

    • MLER testing is a sensitive electrophysiological measure, particularly at low sensation levels.
    • Audiologists should consider MLER as a valuable tool alongside ABR for comprehensive hearing assessment.

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