  In many body systems, constituents interact with each other, forming a
recursive pattern of mutual interaction and giving rise to many interesting
phenomena. Based upon concepts of the modern many body theory, a model for a
generic many body system is developed. A novel approach is used to investigate
the general features in such a system. An interesting phase transition in the
system is found. Possible link to brain dynamics is discussed. It is shown how
some of the basic brain processes, such as learning and memory, find therein a
natural explanation.
