Accession Number:

AD1144317

Title:

Otoacoustic Emission (OAE) Based Assays of the Medial Olivocochlear Reflex (MOCR): Ensuring the OAE Stimulus Does Not Cause a Confounding MOCR

Descriptive Note:

[Technical Report, Technical Report]

Corporate Author:

NAVAL SUBMARINE MEDICAL RESEARCH LAB GROTON CT

Report Date:

2021-06-11

Pagination or Media Count:

30

Abstract:

In the transient-evoked otoacoustic emission TEOAE-based medial-olivocochlear reflex MOCR assay developed by Marshall et al. 2014, a higher TEOAE stimulus level could improve TEOAE signal-to-noise ratio and MOCR measurability. However, a higher level may evoke a confounding ipsilateral MOCR in addition to the contralateral MOCR from the broadband noise elicitor. This study was designed to establish if the TEOAE chirp stimulus could evoke a MOCR by using it as the contralateral MOCR elicitor in place of the broadband noise. A stimulus-frequency otoacoustic emission SFOAE-based MOCR assay was used because tonal SFOAE stimuli do not elicit a confounding MOCR at the levels used.

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Distribution Statement:

[A, Approved For Public Release]