ABSTRACT
The nervous system unlike other organ systems is primarily concerned with signals, information encoding and processing, and control rather than manipulation of energy. It acts like a communication device whose components use substances and energy in processing signals, reorganizing them, choosing and commanding, as well as in developing and learning. Nerve cells or neurons are specialized in the generation, integration, and conduction of incoming signals from the outside world or from other neurons and deliver them to other excitable cells or to effectors such as muscle cells. Whenever information is transferred between different parts of the nervous system, some communication paths have to be established, and some parameters of impulse ring relevant to communication must be set up. Each theoretically possible code becomes a candidate code as long as there exists some evidence that is readable by the system under investigation.
