Forward- and Reverse-Traveling Waves in DP Phenomenology: Does Inverted Direction of Wave Propagation Occur in Classical Models? | Zendy

Renata Sisto | Zendy; Christopher A. Shera | Zendy; Arturo Moleti | Zendy; Teresa Botti | Zendy; Elizabeth S. Olson | Zendy

Open Access

Forward- and Reverse-Traveling Waves in DP Phenomenology: Does Inverted Direction of Wave Propagation Occur in Classical Models?

Author(s) -

Renata Sisto,

Christopher A. Shera,

Arturo Moleti,

Teresa Botti,

Elizabeth S. Olson

Publication year - 2011

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.3658153

Subject(s) - physics , traveling wave , basilar membrane , transmission line , acoustics , phenomenology (philosophy) , wave propagation , phase (matter) , mathematical analysis , classical mechanics , optics , mathematics , computer science , cochlea , quantum mechanics , telecommunications , philosophy , epistemology , medicine , anatomy

Recent basilar-membrane (BM) vibration experiments show that the phase slope of the distortion product (DP) in the cochlear region in which a backward-traveling wave is expected is negative, which is typical of a forward-traveling wave, according to the predictions of quasi-linear approximate solutions of classical 1-D transmission-line cochlear models. This phase behavior has been interpreted as suggesting a strong deviation from the "classical" models of the otoacoustic emission (OAE) generation and transmission. In this paper, the DP phase inversion phenomenon is approached from a conservative point of view. The DP phase is calculated in a classical cochlear model. The main conclusion is that deviations from the classical model are not necessary to account for the observed phase behavior.

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