scholarly journals Synchronization of spontaneous otoacoustic emissions in the tokay gecko

2018 ◽  
Author(s):  
Yuttana Roongthumskul ◽  
A. J. Hudspeth
Keyword(s):  
Otoacoustic Emissions ◽  
Spontaneous Otoacoustic Emissions ◽  
Tokay Gecko

scholarly journals Bilateral spontaneous otoacoustic emissions show coupling between active oscillators in the two ears

2018 ◽  
Author(s):  
Yuttana Roongthumskul ◽  
Daibhid O Maoileidigh ◽  
Albert Hudspeth
Keyword(s):  
Sound Localization ◽  
Otoacoustic Emissions ◽  
Nonlinear Oscillators ◽  
Acoustic Stimulation ◽  
Strongly Correlated ◽  
Spontaneous Otoacoustic Emissions ◽  
Acoustic Coupling ◽  
Tokay Gecko ◽  
Active Processes ◽  
The Relationship

Spontaneous otoacoustic emissions (SOAEs) are weak sounds that emanate from the ears of tetrapods in the absence of acoustic stimulation. These emissions are an epiphenomenon of the active process of the inner ear, which enhances the sensitivity of the auditory system to weak sounds, but their mechanism of production remains a matter of debate. To understand the relationship between SOAEs that we recorded simultaneously from the two ears of the tokay gecko, we developed a mathematical model of the eardrums as noisy nonlinear oscillators coupled by the air within the mouth of a lizard. We found that binaural emissions could be strongly correlated: some emissions occurred at the same frequency in both ears and were highly synchronized. Suppression of the emissions in one ear often changed the amplitude or shifted the frequency of emissions in the other. Decreasing the frequency of emissions from one ear by lowering its temperature usually reduced the frequency of the contralateral emissions. By according with the model, the results indicate that some SOAEs are generated bilaterally through acoustic coupling across the oral cavity. The model predicts that sound localization through the acoustic coupling between ears is influenced by the active processes of both ears.

scholarly journals Spontaneous Otoacoustic Emissions Reveal an Efficient Auditory Efferent Network

2018 ◽  
Vol 61 (11) ◽  
pp. 2827-2832 ◽  
Author(s):  
Viorica Marian ◽  
Tuan Q. Lam ◽  
Sayuri Hayakawa ◽  
Sumitrajit Dhar
Keyword(s):  
Otoacoustic Emissions ◽  
Spontaneous Otoacoustic Emissions ◽  
Auditory Efferent

scholarly journals Suppression tuning of spontaneous otoacoustic emissions in the barn owl (Tyto alba)

2020 ◽  
Vol 385 ◽  
pp. 107835
Author(s):  
Sina Engler ◽  
Christine Köppl ◽  
Geoffrey A. Manley ◽  
Emile de Kleine ◽  
Pim van Dijk
Keyword(s):  
Otoacoustic Emissions ◽  
Barn Owl ◽  
Tyto Alba ◽  
Spontaneous Otoacoustic Emissions
Sign in / Sign up

Export Citation Format

Share Document