[Node to be completed]
The origin of the nerve cell marks another major step in biological
evolution. As a communicative device, the function of a nerve cell is to
vary so that it can communicate information. Nerve cells can affect a
variety of semantic coding relationships, allowing multicellular organisms
to rapidly develop many levels of hierarchical anticipatory
control. In particular, we recognize in the following schema the major
steps of neural evolution:
Culture is control of thought;
which is control of associating;
which is control of complex reflexes;
which is control of simple reflexes;
which is control of movement;
which is control of position.
