A non-linear delayed resonator for mimicking the hearing haircells

IF 1.8 4区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

EPL Pub Date : 2023-10-31 DOI:10.1209/0295-5075/ad087b

Jana Reda, Mathias Fink, Fabrice Lemoult

引用次数: 0

Abstract

Abstract The auditory system possesses remarkable characteristics: super sensitivity and frequency selectivity. However, these traits come at the cost of non-fidelity due to non-linear effects.The culprit behind this active behavior is likely the haircells, as suggested by some in vivo observations and theoretical studies. These haircells appear to operate as non-linear oscillators near a Hopf bifurcation. In this article, we experimentally design a single delayed Hopf resonator to examine its dynamic responses and uncover striking parallels with the human ear. After a systematic characterization of this resonator, we experimentally verify on this single resonator two non-linear phenomena that mimic hearing distortions. This provides further support for hearing models based on Hopf bifurcation.

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模拟听觉毛细胞的非线性延迟谐振器

摘要听觉系统具有超灵敏度和频率选择性等显著特征。然而，这些特征是以非线性效应导致的不保真度为代价的。一些体内观察和理论研究表明，这种活跃行为背后的罪魁祸首可能是毛细胞。这些毛细胞在Hopf分岔附近表现为非线性振荡器。在本文中，我们实验设计了一个单一的延迟Hopf谐振器来检查其动态响应，并发现与人耳惊人的相似之处。在对该谐振器进行系统表征后，我们在该谐振器上实验验证了两种模拟听力失真的非线性现象。这为基于Hopf分岔的听力模型提供了进一步的支持。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

EPL 物理-物理：综合

CiteScore

3.30

自引率

5.60%

发文量

332

审稿时长

1.9 months

期刊介绍： General physics – physics of elementary particles and fields – nuclear physics – atomic, molecular and optical physics – classical areas of phenomenology – physics of gases, plasmas and electrical discharges – condensed matter – cross-disciplinary physics and related areas of science and technology. Letters submitted to EPL should contain new results, ideas, concepts, experimental methods, theoretical treatments, including those with application potential and be of broad interest and importance to one or several sections of the physics community. The presentation should satisfy the specialist, yet remain understandable to the researchers in other fields through a suitable, clearly written introduction and conclusion (if appropriate). EPL also publishes Comments on Letters previously published in the Journal.

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