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Title: Optical coherence tomography (OCT) leading to more insight into cochlear mechanics

Optical Coherence Tomography (OCT) was used to measure vibrations of the basilar membrane (BM) and the Reticular Lamina (RL) in the cochlea of the guinea pig, at frequencies up to 25 kHz. Because of the difficulty of the experiments the data have limited sets of parameters and are subject to high noise levels. In a viable guinea-pig cochlea, the RL moves in the region of maximum response with a larger amplitude than the BM. We cannot rule out that some of that difference is due to a geometrical factor. We also found a consistent increase of this amplitude difference with frequency, which points to a low-pass filtering process. That process might be linked to the mass of the fluid contained in the Organ of Corti channel (OoC channel)
Authors:
 [1] ;  [2] ; ; ;  [3]
  1. Academic Medical Centre, University of Amsterdam, Amsterdam (Netherlands)
  2. (United States)
  3. Oregon Health & Science University, Portland, Oregon (United States)
Publication Date:
OSTI Identifier:
22494505
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1703; Journal Issue: 1; Conference: 12. international workshop on the mechanics of hearing, Cape Sounio (Greece), 23-29 Jun 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; AMPLITUDES; FILTERS; GUINEA PIGS; KHZ RANGE 01-100; MECHANICS; MEMBRANES; NOISE; TOMOGRAPHY