A Pseudo-neuron Device and Firing Dynamics of Their Networks Similar to Neural Synchronizing Phenomena Between Far Local Fields in the Brain

A pseudo-neuron hardware device called dynamic self-electrooptic effect device (DSEED) is proposed and considered. First, its neuron-like pulsed oscillations ((i) fast spiking type, (ii) threshold spiking type) are theoretically predicted, and their oscillating properties are discussed using computer experiments. Second, firing (pulsing) pattern dynamics of their diffusion-coupled networks are considered, and the computer experiments indicate that there are three kinds of firing dynamics, (a) transient chaotic firing state, (b) entirely synchronized (coherent) firing state, and (c) partly synchronized firing state, between far local fields in the network. In particular, the case (c) shows that the firing patterns are quite similar to neural synchronization phenomena between far local fields as observed in the brain. So, the present device and their networks are, if successfully realized in hardware, quite useful to verify and develop theories of neural (coupled oscillator) networks to consider or to understand the mechanisms of brain functions based on the viewpoint of nonlinear dynamics.