Electrochemical neuron model.

1. A mathematical model for the behavior of passive iron in nitric acid, based on the electrochemical mechanisms, has been proposed. The model is capable of explaining several phenomena including threshold for activation, monostable property, periodic activation, propagation of activation, and threshold for propagation. Furthermore, the mathematical model predicts that the electrochemical active line has a specific propagated waveform and velocity of propagation. 2) By using iron-silver junctions in nitric acid, we could form a McCulloch-Pitts type neuron model. Also we could show the occurrence of reverberation on a net of iron wires in nitric acid.