Realization of spiking by an excitable chemical system

It is theoretically demonstrated that an excitable chemical system can func tion as a spiking neuron and a chemical spiking neuron network can be const ructed. The Oregonator is used as a model for a chemical spiking neuron. Th e chemical spiking neuron modeled by the Oregonator is similar in behavior to the spiking neuron model of Maass even though the Oregonator has a diffe rent excitation mechanism from the spiking neuron model. In the spiking neu ron network, information is encoded and processed by using the timing of th e spikes in spiking neurons. It is shown that chemical spiking neuron netwo rks can be constructed by the unidirectional selective coupling of the spik ing chemical neurons. The chemical spiking neuron network can process infor mation encoded temporally like the spiking neuron network with a restrictio n in the range of the weight of couplings between the chemical neurons.