Relation between threshold and firing phenomena of neuron circuits, considering only EPSP, which are randomly connected. -Computer simulation-

In this model, each neuron has four excitatory outputs and is randonly connected with other neurons. When the neuron fires, it sends out four excitatory signals, and it stimulates other four neurons (include itself). In the next time, other neurons fire when its' membrane potential exceed the values of its' threshold. In this way these circuits repeat firing. The values of threshold are decided artificially. This paper denotes an effect of the relation between threshold and firing phenomena