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arXiv 1202.5912physics.bio-phcond-mat.stat-mech
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听力幅值死亡状态

Amplitude death state for hearing

Kang-Hun Ahn

摘要:

我们提出振幅死亡现象是听觉信号转导的一种潜在机制。当不同的听毛束弹性耦合时,它们的自发振荡可以被淬灭,形成振幅死亡状态。我们表明,在这种状态下,毛细胞是安静的,并准备检测振荡刺激与耦合强度依赖放大。数值模拟的机制表明,耦合的毛细胞的非均匀性可以有助于噪声鲁棒的听觉转导。

英文摘要:

We propose amplitude death phenomenon as an underlying mechanism of auditory transduction. When non-identical auditory hair bundles are elastically coupled, their spontaneous oscillations can be quenched to form an amplitude death state. We show, in this state, the hair cells are quiet and ready to detect oscillatory stimulus with coupling-strength dependent amplification. Numerical demonstration of the mechanism suggests that the non-uniformity of coupled hair cells can contribute to noise-robust auditory transduction.

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