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Short-Term and Long-Term Stability of Medial Olivocochlear Reflex in Adults with Typical Hearing

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Abstract

This study aimed to assess the stability of Medial Olivocochlear Reflex (MOCR) function in typical hearing adults with the use of Contralateral Suppression (CS) of Distortion Product Otoacoustic Emissions (DPOAEs). This study included fifty-three (90 ears) participants between the ages of 18–30. Participants were divided into 3 groups (Group A-daily stability, Group B-short-term stability, and Group C- long-term stability). For each group, 4 measurements (30 × 4 = 120sessions) were taken. Group A measurements were taken daily, Group B measurements were taken weekly and Group C measurements were taken monthly. DPOAEs and Contralateral Suppression of DPOAEs were measured for each group. Analyses indicated that Medial Olivocochlear Reflex (MOCR) measured through contralateral suppression of DPOAE was unstable. This result indicates a DPOAE-based measure of the MOCR was not repeated across time. A great deal has been learned using CS of DPOAEs to study medial efferent activation, but several unresolved methodological issues that could impact the data to produce poor stability across time. Those methodological issues need to be explored and researched in the future.

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Data availability

Data not available due to [ethical/legal/commercial] restrictions. Due to the nature of this research, participants of this study did not agree for their data to be shared publicly, so supporting data is not available.

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Authors and Affiliations

  1. Department of Audiology and Speech Language Pathology, SRM Medical College Hospital and Research Centre, SRM Institute of Science and Technology, Kattankulathur Campus, Chennai, Tamilnadu, 603203, India

    S. Ruba

  2. Amplifon, Mulgrave, Australia

    M. R. Panda

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  1. S. Ruba
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  2. M. R. Panda
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Correspondence to S. Ruba.

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Ruba, S., Panda, M.R. Short-Term and Long-Term Stability of Medial Olivocochlear Reflex in Adults with Typical Hearing. Indian J Otolaryngol Head Neck Surg 75 (Suppl 1), 297–300 (2023). https://doi.org/10.1007/s12070-022-03448-9

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  • DOI: https://doi.org/10.1007/s12070-022-03448-9

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