Properties of distortion product otoacoustic emissions and neural suppression tuning curves attributable to the tectorial membrane resonance

Lukashkin, Andrei N, Smith, Judith K and Russell, Ian J (2007) Properties of distortion product otoacoustic emissions and neural suppression tuning curves attributable to the tectorial membrane resonance. Journal of the Acoustical Society of America, 121 (1). pp. 337-343. ISSN 0001-4966

Full text not available from this repository.

Abstract

Mechanically coupled cochlear structures are likely to form a resonator with several degrees of freedom. Consequently one can expect complex, frequency-dependent relative movements between these structures, particularly between the tectorial membrane and reticular lamina. Shearing movement between these two structures excites the cochlear receptors. This excitation should be minimal at the frequency of the hypothesized tectorial membrane resonance. In each preparation, simultaneous masking neural tuning curves and distortion product otoacoustic emissions were recorded. The position of the low-frequency minima in the tuning curves, frequency dependence of the emission bandpass structure, and level-dependent phase reversal were compared to determine if they were generated by a common phenomenon, for example the tectorial membrane resonance. The notch in the masking curves and the phase inversion of the emission growth functions at the auditory thresholds are both situated half an octave below the probe frequency and the high-frequency primary, respectively, and show similar frequency dependence. The emission bandpass structure is, however, likely to be generated by a combination of mechanisms with different ones dominating at different stimulus parameters.

Item Type: Article
Schools and Departments: School of Life Sciences > Biology and Environmental Science
Depositing User: Andrei Lukashkin
Date Deposited: 06 Feb 2012 19:05
Last Modified: 20 Mar 2012 13:46
URI: http://sro.sussex.ac.uk/id/eprint/19257
📧 Request an update