Encyclopedia of Computational Neuroscience

2015 Edition
| Editors: Dieter Jaeger, Ranu Jung

Neuromorphic Sensors, Cochlea

  • Shih-Chii LiuEmail author
  • André van Schaik
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-6675-8_118



The biological cochlea is a bony, fluid-filled structure in the inner ear. It performs the transduction between the pressure signal representing the acoustic input and the neural signals that carry information to the brain. The cochlea is spiraled from the base to the apex, containing approximately 2.5 turns. The internal part of the cochlea is divided into three chambers (scalae): scala vestibuli, scala media, and scala tympani; Reissner’s membrane separates the first chamber from the second chamber, and the basilar membrane (BM) separates the second and third chambers. A specialized structure, the organ of Corti, sits atop the basilar membrane. It contains both the inner and outer hair cells (IHCs and OHCs, respectively). The tips of these cells have hairlike structures, called stereocilia. Deflections in the stereocilia of the IHCs generate neural signals that travel to the brain. Neural...

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© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.University of Zürich and ETH ZürichZürichSwitzerland
  2. 2.University of Western SydneyPenrithAustralia