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Coherence resonance in an autaptic Hodgkin-Huxley neuron with time delay

机译:随着时间延迟的自闭症Hodgkin-Huxley神经元的相干共鸣

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摘要

Autapses, synapses between a neuron and itself, are believed to serve as a regulator of information processing in the nervous system. Noise, as random or unpredictable fluctuations, affects nearly all aspects of nervous function. In this work, we studied the regulatory ability of an autapse on firing behaviors of a Hodgkin-Huxley neuron in response to synaptic-like signals in the presence of noise. For weak subthreshold synaptic input, the autaptic neuron produced the similar firing behavior governed by the noise in case of either determinate or random synaptic input. The critical noise intensity necessary to trigger the spike train slightly was decreased with determinate low-frequency input. Under a strong suprathreshold synaptic current, noise-induced frequency resonance and precise responses mostly occured with a high-frequency determinate input. With a random strong synaptic input, an increase in the autaptic delay led to a resonance-like response, but had no observable effects in cases with a short delay time under a low-frequency input.
机译:据信,神经元和本身之间的突触突触被认为是神经系统中信息处理的调节因素。作为随机或不可预测的波动的噪声影响了神经功能的几乎所有方面。在这项工作中,我们研究了在存在噪声存在下响应突触样信号的霍奇金轩轩神经元的射击行为的监管能力。对于弱亚阈值突触输入,自动神经元在确定或随机突触输入的情况下产生了由噪声控制的类似射击行为。用确定的低频输入略微降低触发尖峰母猪所需的临界噪声强度。在强的Suprathreshold突触电流下,噪声感应频率谐振和精确响应主要发生在高频确定输入中。通过随机强的突触输入,自动延迟的增加导致了相同的响应,但在低频输入下具有短延迟时间的情况下没有可观察的效果。

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