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Abstract：
We study the mechanics of mechanoreceptor hairs in response to electro- and acousto-stimuli to expand the theory of tuning within filiform mechano-sensory systems and show the physical, biological and parametric feasibility of electroreception in comparison to aerodynamic sensing. We begin by analysing two well-known mechanosensory systems, the MeD1 spider trichobothria and the cricket cercal hair, offering a systematic appraisal of the physics of mechanosensory hair motion. Then we explore the biologically relevant parameter space of mechanoreceptor hairs by varying each oscillator parameter, thereby extending the theory to general arthropods. In doing so, we readily identify combinations of parameters for which a hair shows an enhanced or distinct response to either electric or aerodynamic stimuli. Overall, we find distinct behaviours in the two systems with novel insight provided through the parameter-space analysis. We show how the parameter space and balance of parameters therein of the resonant spider system are organised to produce a highly tuneable hair system through variation of hair length, whilst the broader parameter space of the non-resonant cricket system responds equally to a wider range of driving frequencies with increased capacity for high temporal resolution. From our analysis, we hypothesise the existence of two distinct types of mechanoreceptive system: the general system where hairs of all lengths are poised to detect both electro- and acousto- stimuli, and a stimuli-specific system where the sensitivity and specificity of the hairs to the different stimuli changes with length.
摘要：
我们研究了机械感受器毛发响应电和声刺激的力学，以扩展丝状机械感觉系统中的调谐理论，并显示了物理，与空气动力学传感相比，电接收的生物学和参数可行性。我们首先分析两个众所周知的机械感应系统，MeD1蜘蛛毛滴虫和板球头毛，对机械感觉头发运动的物理学进行了系统的评估。然后，我们通过改变每个振荡器参数来探索机械感受器毛发的生物学相关参数空间，从而将该理论扩展到一般节肢动物。在这样做的时候，我们很容易确定参数的组合，对于这些参数，头发对电或空气动力学刺激显示出增强或明显的响应。总的来说,通过参数空间分析，我们在两个系统中发现了不同的行为，并提供了新颖的见解。我们展示了如何组织共振蜘蛛系统的参数空间和参数平衡，以通过改变头发长度来产生高度可调的头发系统。而非共振板球系统的更广泛的参数空间同样响应于更宽范围的驱动频率，并增加了高时间分辨率的容量。根据我们的分析,我们假设存在两种不同类型的机械感受系统：一般系统，所有长度的头发都准备好检测电刺激和声音刺激，和刺激特异性系统，其中毛发对不同刺激的敏感性和特异性随长度而变化。
