Accession Number:

AD1144325

Title:

Effects of Early Stopping Rules, Stimulus Levels, and Ear Differences on Transient-Evoked Otoacoustic Emission (TEOAE)-Based Assays of the Medial-Olivocochlear Reflex (MOCR)

Descriptive Note:

[Technical Report, Technical Report]

Corporate Author:

NAVAL SUBMARINE MEDICAL RESEARCH LAB GROTON CTMimosa AcousticsMASSACHUSETTS INST OF TECH CAMBRIDGECONNECTICUT UNIV STORRS

Report Date:

2021-06-11

Pagination or Media Count:

49

Abstract:

Background The strength of the medial-olivocochlear reflex MOCR may indicate susceptibility to noise-induced hearing loss. NSMRL have developed a clinical MOCR assay based on a transient-evoked otoacoustic emission TEOAE test paired with a contralateral noise elicitor. A faster test is desirable for clinical settings. We investigated early stopping rules based on minimum test quality signal-to-noise ratio and noise level, a higher stimulus level, and whether just one ear could be tested. Results Stopping rules sped the test up by 30 without degrading test quality. A higher stimulus level showed little-to-no effect in this highly-selected group. Ears were correlated but only moderately. Conclusions Stopping rules are advised to improve test efficiency. A higher stimulus level may be warranted in a more heterogeneous population. Both ears need testing to get a full picture of the MOCR strength.

Descriptors:

Subject Categories:

  • Anatomy and Physiology
  • Mechanics

Distribution Statement:

[A, Approved For Public Release]