Spatial vibration patterns of the gerbil eardrum

Authors

  • Nicolas N. Ellaham Dept. of BioMedical Engineering, McGill University, Montréal, Que., Canada
  • Fadi Akache Dept. of Otolaryngology, McGill University, Montréal, Que., Canada
  • W. Robert J. Funnell Dept. of BioMedical Engineering, McGill University, Montréal, Que., Canada
  • Sam J. Daniel Dept. of Otolaryngology, McGill University, Montréal, Que., Canada

Keywords:

Acoustic fields, Dental cement, Pressure effects, Sensory perception, Ear canal, Laser Doppler vibrometry, Sound-proof room, Vibration patterns

Abstract

Laser Doppler vibrometry (LDV) measurements were performed on 5 Mongolian gerbils at multiple points along the manubrium of the malleus and along a line on the eardrum perpendicular to the manubrium, in order to study the spatial vibration patterns. A large hole was drilled in the bulia to equalize the pressures on the two sides of the eardrum, and to permit experimental steps to correct for temporal effects. The gerbil head is attached to a coupler with dental cement at the opening of the ear canal with an orientation that allows an optimal view of the eardrum. The measurement was performed inside a double-walled sound-proof room. Normalized displacements recorded along the manubrium showed the same frequency-response shape as on the pars tensa.

Downloads

Published

2007-09-01

How to Cite

1.
Ellaham NN, Akache F, Funnell WRJ, Daniel SJ. Spatial vibration patterns of the gerbil eardrum. Canadian Acoustics [Internet]. 2007 Sep. 1 [cited 2022 Aug. 12];35(3):72-3. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1906

Issue

Vol. 35 No. 3 (2007)

Section

Proceedings of the Acoustics Week in Canada

License

Copyright on articles is held by the author(s). The corresponding author has the right to grant on behalf of all authors and does grant on behalf of all authors, a worldwide exclusive licence (or non-exclusive license for government employees) to the Publishers and its licensees in perpetuity, in all forms, formats and media (whether known now or created in the future)
i)    to publish, reproduce, distribute, display and store the Contribution;
ii)    to translate the Contribution into other languages, create adaptations, reprints, include within collections and create summaries, extracts and/or, abstracts of the Contribution;
iii)    to exploit all subsidiary rights in the Contribution,
iv)    to provide the inclusion of electronic links from the Contribution to third party material where-ever it may be located;
v)    to licence any third party to do any or all of the above.