Selective communication and information processing by excitable systems

The phenomena of selective response of an excitable system to external pulse stimulation relating to interneuron communication and information processing problems are discussed. Subthreshold dynamics of the FitzHugh-Nagumo-like excitable system modeling of a neuron with the synaptic input is investigated. It is shown that the system response on various incoming information messages can be described by one- and two-dimensional linear and nonlinear point maps. Nonlinear integrating and resonant properties of the system are analyzed.