By considering the nervous system as a type of communication system with reliable transmission of signals an attempt is made to use in neurophysiology the basic information theory theses developed by Shannon for technical communication systems. Some results of different information indices calculations (those of capacity, redundancy, degree of reliability and so on) of the pulses incorporated in their functional community (neuron ensembles) are presented. A comparison is made between peripheral and central neurons information indices. The leading role of spike trains redundancy is stressed in the mechanisms of securing a reliable signals transmission in the nervous system. The relation between redundancy and randomization process of neuron spike trains structures is shown.
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