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MOCR testing

Measure the medial-olivocochlear reflex (MOCR) with contralateral suppression of TEOAEs or SFOAEs. This is a new module especially for research customers.

  • Use MOCR assays similar to those recently published by Lynne Marshall and colleagues.
  • Contralateral elicitor can be broadband noise or tonal.
  • Highly configurable protocols, real-time display, reports, and analysis.
  • Automatically print results to pdf.
  • Automatically save detailed results to Matlab files for further in-depth analysis.
  • Tester-friendly GUI - use the spacebar to advance through the most common options.

MOCR on HearID

Example MOCR test results
HearID+MOCR screenshot, showing an example MOCR test series. On the left are the TEOAE results with and without the contralateral broadband noise elicitor. On the right is the derived MOCR strength.

CAS add-on

Also available for the TE and SF Modules for research users is a contralateral elicitor add-on (MOCR module customers get this add-on for free). The add-on generates digital broad-band noise or a tone, synchronizes the output with the SFOAE measurement (including programmable on and offset delays), and automatically saves the data files with a common file prefix. The benefit to using the add-on is that test sequences can be highly customized, but there is no real-time display of the MOCR results or any data analysis. This add-on is software only - a suitable sound card and calibrated earphone must be purchased or acquired separately.



Further Reading

Marshall, L., Lapsley Miller, J. A., Guinan, J. J., Shera, C. A., Reed, C. M., Perez, Z. D., Delhorne, L. A., and Boege, P. (2014). "Otoacoustic-emission-based medial-olivocochlear reflex assays for humans," J. Acoust. Soc. Am. 136, 2697-2713.