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High-order synchronization of hair cell bundles

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Title
High-order synchronization of hair cell bundles
Author(s)
Levy M.; Molzon A.; Jae-Hyun Lee; Ji-wook Kim; Jinwoo Cheon; Bozovic D.
Publication Date
2016-12
Journal
SCIENTIFIC REPORTS, v.6, no., pp.39116 -
Publisher
NATURE PUBLISHING GROUP
Abstract
Auditory and vestibular hair cell bundles exhibit active mechanical oscillations at natural frequencies that are typically lower than the detection range of the corresponding end organs. We explore how these noisy nonlinear oscillators mode-lock to frequencies higher than their internal clocks. A nanomagnetic technique is used to stimulate the bundles without an imposed mechanical load. The evoked response shows regimes of high-order mode-locking. Exploring a broad range of stimulus frequencies and intensities, we observe regions of high-order synchronization, analogous to Arnold Tongues in dynamical systems literature. Significant areas of overlap occur between synchronization regimes, with the bundle intermittently flickering between different winding numbers. We demonstrate how an ensemble of these noisy spontaneous oscillators could be entrained to efficiently detect signals significantly above the characteristic frequencies of the individual cells. © The Author(s) 2016
URI
http://pr.ibs.re.kr/handle/8788114/3334
DOI
10.1038/srep39116
ISSN
2045-2322
Appears in Collections:
Center for Nanomedicine (나노의학 연구단) > Journal Papers
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