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Neuromorphic Sensors, Cochlea

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Encyclopedia of Computational Neuroscience

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Synonyms

Event-driven artificial cochleas; Silicon cochleas; Spiking cochleas

Definition

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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Author information

Authors and Affiliations

  1. University of Zurich and ETH Zurich, Zurich, Canton of Zurich, Switzerland

    Shih-Chii Liu

  2. University of Western Sydney, Penrith, New South Wales, Australia

    André van Schaik

Authors
  1. Shih-Chii Liu
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  2. André van Schaik
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Corresponding author

Correspondence to Shih-Chii Liu .

Editor information

Editors and Affiliations

  1. Atlanta, Georgia, USA

    Dieter Jaeger

  2. Department of Biomedical Engineering, Florida International University, Miami, Florida, USA

    Ranu Jung

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© 2014 Springer Science+Business Media New York

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Liu, SC., van Schaik, A. (2014). Neuromorphic Sensors, Cochlea. In: Jaeger, D., Jung, R. (eds) Encyclopedia of Computational Neuroscience. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-7320-6_118-1

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  • DOI: https://doi.org/10.1007/978-1-4614-7320-6_118-1

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  • Publisher Name: Springer, New York, NY

  • Online ISBN: 978-1-4614-7320-6

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