A comparative study of avian middle ear mechanics.

Animals Birds Ear, Middle Hearing Sound
Biomechanics Bird Laser vibrometry Middle ear

Journal

Hearing research
ISSN: 1878-5891
Titre abrégé: Hear Res
Pays: Netherlands
ID NLM: 7900445

Informations de publication

Date de publication:
15 09 2020
Historique:
received: 11 12 2019
revised: 02 07 2020
accepted: 08 07 2020
pubmed: 24 8 2020
medline: 15 12 2021
entrez: 24 8 2020
Statut: ppublish

Résumé

Sound and hearing play an important role in the lives of many birds, and studies have been published on the acoustic habitat of various species, as well as on various aspects of their hearing system. However the function of the middle ear remains largely unexplored, with existing studies focusing on either single species, or a very narrow range of species. In this article we report measurements of the middle ear transfer function in 39 taxonomically diverse avian species. We used laser vibrometry to measure the vibrations of the columellar footplate in response to tones played in each animal's ear canal, and calculated the middle ear transfer functions. Transfer functions varied substantially across species, but appeared to follow common trends. Comparisons between the peak frequency in the transfer function and length/mass of the columella reveal a correlation between the three, however statistical analysis suggests that columellar length is a primary indicator of the peak frequency. These results provide a broad survey of avian middle ear function, and the observed trends provide a method with which to begin to predict the response of single ossicle middle ear systems.

Identifiants

DOI: 10.1016/j.heares.2020.108043 PMID: 32828615
pubmed: 32828615
pii: S0378-5955(20)30314-2
doi: 10.1016/j.heares.2020.108043
pii:
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

108043

Informations de copyright

Copyright © 2020 Elsevier B.V. All rights reserved.

Auteurs

John Peacock (J)

Department of Physiology & Biophysics, University of Colorado School of Medicine, Aurora, 80045, CO, USA. Electronic address: john.2.peacock@cuanschutz.edu.

Garth M Spellman (GM)

Department of Zoology, Denver Museum of Nature & Science, Denver, CO, 80205, USA.

Daniel J Tollin (DJ)

Department of Physiology & Biophysics, University of Colorado School of Medicine, Aurora, 80045, CO, USA; Department of Otolaryngology, University of Colorado School of Medicine, Aurora, 80045, CO, USA.

Nathaniel T Greene (NT)

Department of Otolaryngology, University of Colorado School of Medicine, Aurora, 80045, CO, USA.

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Classifications MeSH

questionsmedicales.fr › Eucaryotes › Animaux › A comparative study of avian middle ear mechanics.
questionsmedicales.fr › Eucaryotes › Animaux › Chordés › Vertébrés › Oiseaux › A comparative study of avian middle ear mechanics.
questionsmedicales.fr › Organes des sens › Oreille › Oreille moyenne › A comparative study of avian middle ear mechanics.
questionsmedicales.fr › Phénomènes physiologiques de l'appareil locomoteur et du système nerveux › Phénomènes physiologiques du système nerveux › Sensation › Ouïe › A comparative study of avian middle ear mechanics.
questionsmedicales.fr › Phénomènes physiques › Rayonnement › Rayonnement non ionisant › Son (physique) › A comparative study of avian middle ear mechanics.