Acoustic analysis of the frequency-dependent coupling between the frog's ears

The ears of anurans are coupled through the Eustachian tubes and mouth cavity. The degree of coupling varies with frequency showing a bandpass characteristic, but the characteristics differ between empirically measured data based on auditory nerve responses and tympanic membrane vibration. In the pr...

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Veröffentlicht in:The Journal of the Acoustical Society of America 2015-09, Vol.138 (3), p.1623-1626
1. Verfasser: Shofner, William P
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description The ears of anurans are coupled through the Eustachian tubes and mouth cavity. The degree of coupling varies with frequency showing a bandpass characteristic, but the characteristics differ between empirically measured data based on auditory nerve responses and tympanic membrane vibration. In the present study, the coupling was modeled acoustically as a tube connected with a side branch. This tube corresponds to the Eustachian tubes, whereas the side branch corresponds to the mouth cavity and nares. The analysis accounts for the frequency dependency shown by the empirical data and reconciles the differences observed between the coupling as measured by tympanic membrane vibration and auditory nerve responses.
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source MEDLINE; AIP Journals Complete; Alma/SFX Local Collection; AIP Acoustical Society of America
subjects Acoustics
Animals
Anura - physiology
Cochlear Nerve - physiology
Computer Simulation
Ear - anatomy & histology
Ear - physiology
Tympanic Membrane - physiology
Vibration
title Acoustic analysis of the frequency-dependent coupling between the frog's ears
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