Back to Search
Start Over
Iterated intracochlear reflection shapes the envelopes of basilar-membrane click responses
- Publication Year :
- 2015
- Publisher :
- Acoustical Society of America, 2015.
-
Abstract
- Multiple internal reflection of cochlear traveling waves has been argued to provide a plausible explanation for the waxing and waning and other temporal structures often exhibited by the envelopes of basilar-membrane (BM) and auditory-nerve responses to acoustic clicks. However, a recent theoretical analysis of a BM click response measured in chinchilla concludes that the waveform cannot have arisen via any equal, repetitive process, such as iterated intracochlear reflection [Wit and Bell (2015), J. Acoust. Soc. Am. 138, 94-96]. Reanalysis of the waveform contradicts this conclusion. The measured BM click response is used to derive the frequency-domain transfer function characterizing every iteration of the loop. The selfsame transfer function that yields waxing and waning of the BM click response also captures the spectral features of ear-canal stimulus-frequency otoacoustic emissions measured in the same animal, consistent with the predictions of multiple internal reflection. Small shifts in transfer-function phase simulate results at different measurement locations and reproduce the heterogeneity of BM click response envelopes observed experimentally.
- Subjects :
- Sound Spectrography
Time Factors
Acoustics and Ultrasonics
Acoustics
Otoacoustic Emissions, Spontaneous
Phase (waves)
Transfer function
Mechanotransduction, Cellular
symbols.namesake
Motion
Arts and Humanities (miscellaneous)
Chinchilla
Waveform
Animals
Cochlear Nerve
Physics
Total internal reflection
Fourier Analysis
Psychological and Physiological Acoustics
Basilar Membrane
Cochlea
Basilar membrane
Sound
Acoustic Stimulation
Fourier analysis
Iterated function
Reflection (physics)
symbols
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....50cfb9a25671576d971b0c2b715819b2