ABSTRACT
The human brain has been called the most complex organ of all creation and its capacity has no challenge from even the largest computer. The brain develops rapidly after birth and modifies its functional organization by its exposure to constant conditions of stimulation. In association with the stimulation, problem-solving and intellective processes are functionally directed by activity in the associational areas in the frontal lobes. While psychologists have tended to hold the term mind as lacking in specific and scientific meaning, the term probably is no less definable than the term intelligence. Before World War II, intelligence as a concept was generally believed to be inherited and fixed. It was seen as an "inborn" characteristic and without possible modification by individual effort or training. A number of research activities have brought serious doubts about the view that intelligence is fixed and primarily genetically determined.
