Chimera states and frequency clustering in systems of coupled inner-ear hair cells.
@article{Faber2021ChimeraSA, title={Chimera states and frequency clustering in systems of coupled inner-ear hair cells.}, author={Justin Faber and Dolores Bozovic}, journal={Chaos}, year={2021}, volume={31 7}, pages={ 073142 } }
Coupled hair cells of the auditory and vestibular systems perform the crucial task of converting the energy of sound waves and ground-borne vibrations into ionic currents. We mechanically couple groups of living, active hair cells with artificial membranes, thus mimicking in vitro the coupled dynamical system. We identify chimera states and frequency clustering in the dynamics of these coupled nonlinear, autonomous oscillators. We find that these dynamical states can be reproduced by our…
2 Citations
FROM HAIR BUNDLE TO EARDRUM: AN EXTENDED MODEL FOR THE GENERATION OF SPONTANEOUS OTOACOUSTIC EMISSIONS BY THE LIZARD EAR
- PhysicsJournal of Hearing Science
- 2022
Results: Frequency spectra are given for different sets of coupling parameters, both for nearest neighbour coupling of the oscillators, and for coupling to the papilla, and also after the…
Frequency chimera state induced by differing dynamical timescales
- PhysicsPhysical Review E
- 2021
We report the occurrence of a self-emerging frequency chimera state in spatially extended systems of coupled oscillators, where the coherence and incoherence are defined with respect to the emergent…
References
SHOWING 1-10 OF 47 REFERENCES
Chaotic Dynamics Enhance the Sensitivity of Inner Ear Hair Cells
- PhysicsScientific Reports
- 2019
It is found that the hair bundle is most sensitive to a stimulus of small amplitude when it is poised in the weakly chaotic regime, and the response time to a force step decreases with increasing levels of chaos.
Spontaneous voltage oscillations and response dynamics of a Hodgkin-Huxley type model of sensory hair cells
- BiologyJournal of mathematical neuroscience
- 2011
It is shown that self-sustained regular voltage oscillations lead to enhanced and sharply tuned sensitivity of the hair cell to weak mechanical periodic stimuli and regimes of chaotic oscillations do provide a high sensitivity to low-frequency variations of external stimuli.
Chaotic Dynamics of Inner Ear Hair Cells
- PhysicsScientific Reports
- 2018
It is proposed that chaos may play a role in the hair cell’s ability to detect low-amplitude sounds and an enhancement of sensitivity to weak stimuli when the system is poised in the chaotic regime.
Auditory sensitivity provided by self-tuned critical oscillations of hair cells.
- PhysicsProceedings of the National Academy of Sciences of the United States of America
- 2000
It is shown that a collection of motor proteins within a hair bundle can generate oscillations at a frequency that depends on the elastic properties of the bundle, which explains how hair cells can detect sounds that carry less energy than the background noise.
Amplitude death of coupled hair bundles with stochastic channel noise.
- PhysicsPhysical review. E, Statistical, nonlinear, and soft matter physics
- 2014
Stochastic simulations of elastically coupled hair bundles demonstrate that the multiple number of transduction channels per hair bundle is an important factor to the amplitude death phenomenon, because the phenomenon may disappear for a small number ofTransduction channels due to strong gating noise.
Explosive synchronization enhances selectivity: Example of the cochlea
- Physics
- 2016
Acoustical signal transduction in the cochlea is an active process that involves nonlinear amplification and spontaneous otoacoustic emissions. Signal transduction involves individual subunits…
Comparison of a hair bundle's spontaneous oscillations with its response to mechanical stimulation reveals the underlying active process
- PhysicsProceedings of the National Academy of Sciences of the United States of America
- 2001
It is confirmed that a hair bundle's spontaneous movements are produced by energy-consuming elements within the hair cell, and a breakdown in a general principle of equilibrium thermodynamics, the fluctuation–dissipation theorem is demonstrated.
Amphibian sacculus and the forced Kuramoto model with intrinsic noise and frequency dispersion.
- PhysicsPhysical review. E
- 2018
A model for the amphibian sacculus in the form of an array of phase oscillators with long-range coupling, subject to a steady load that suppresses spontaneous oscillations, is proposed, showing that such an array can be a sensitive and robust subthreshold detector of low-frequency stimuli, though without significant frequency selectivity.
Integrating the active process of hair cells with cochlear function
- BiologyNature Reviews Neuroscience
- 2014
The auditory system is enhanced by an active process in cochlear hair cells that amplifies acoustic signals several hundred-fold, sharpens frequency selectivity and broadens the ear's dynamic range.