How the nervous system determines the quantity of information delivered by signals

Starting from the finding that the brain responds to received signals according to the quantity of information (Restian, 1978), the author tried to answer the question: How does the brain discover the quantity of information brought by these signals? In order to reply to this question, the author appealed to two sources that emitted similar signals containing different information. It was found that although the signals brought different information at the beginning they functioned similarly. Only after a period of time did the signals come to function differently, according to the quantity of information delivered by them. This fact demonstrates that the brain operates neither on signals nor on source-emitted information. The brain operates on information discovered by it in the respective signals, and the discovery of the information the received signals is done according an internal model constructed by the brain concerning the respective source. It can be affirmed by the fact that together with the improvement of the model, the results of the received signals are modified.