论文标题
抑制突触对可激发神经元网络的关键性的影响
Influence of inhibitory synapses on the criticality of excitable neuronal networks
论文作者
论文摘要
在这项工作中，我们研究具有兴奋性和抑制性突触的可激发神经元神经元网络的动态范围。我们获得了临界点的分析表达，这是兴奋性和抑制性突触强度的函数。我们还确定了一个分析表达式，该表达式得出最大动态范围的临界点值。根据平均连接程度和耦合权重，临界点可以表现出停止或不断的动态。但是，在两种情况下，动态范围都是相等的。我们观察到，外部刺激掩盖了计算动态范围的区域中自我维持活性（不断动态）的某些影响。在这些区域中，不断的动态和停止活动的发射速率相同。此外，我们验证具有大量连接的网络的兴奋性和抑制输入大致相等，如实验上报告的兴奋性抑制平衡。
In this work, we study the dynamic range of a neuronal network of excitable neurons with excitatory and inhibitory synapses. We obtain an analytical expression for the critical point as a function of the excitatory and inhibitory synaptic intensities. We also determine an analytical expression that gives the critical point value in which the maximal dynamic range occurs. Depending on the mean connection degree and coupl\-ing weights, the critical points can exhibit ceasing or ceaseless dynamics. However, the dynamic range is equal in both cases. We observe that the external stimulus mask some effects of self-sustained activity (ceaseless dynamic) in the region where the dynamic range is calculated. In these regions, the firing rate is the same for ceaseless dynamics and ceasing activity. Furthermore, we verify that excitatory and inhibitory inputs are approximately equal for a network with a large number of connections, showing excitatory-inhibitory balance as reported experimentally.
