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Open Access Submillisecond Monaural Coincidence Detection by Octopus Cells

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This article is Open Access under the terms of the Creative Commons CC BY licence.

In vitro and in silico studies have suggested that octopus cells in the mammalian posterior ventral cochlear nucleus (PVCN) are monaural coincidence detectors that encode the temporal structure of complex sounds. In vivo studies on these neurons, however, are rare due to several technical difficulties. We used sharp high-impedance electrodes in anesthetized gerbils to study the responses of octopus cells to click trains. We find that, even though octopus cells only fire an onset spike to pure tones, they fire in sustained fashion to trains of transients. They entrain to click trains up to 400 Hz with vector strength almost equal to one and spike jitter at ∼100 microseconds. This temporal precision is unmatched by any other cell type in the auditory system.

© 2018 The Author(s). Published by S. Hirzel Verlag · EAA. This is an open access article under the terms of the Creative Commons Attribution (CC BY 4.0) license (https://creativecommons.org/licenses/by/4.0/).

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Document Type: Research Article

Publication date: September 1, 2018

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  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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