ABSTRACT
The reader who has followed our discussion and explanation of mental processes will have noted the fundamental part played by experience. The normal human organism includes an elaborate nervous system with either actual or potential neuron patterns capable of responding to all the important stimuli and directing all the necessary actions of life. But even those inborn neuron patterns cannot function without being set into activity by an appropriate stimulus. Indeed, there seems good reason to believe, that if the stimulus is never presented, these specific neuron patterns either degenerate or become so subordinate to other patterns that are exercised, that for all practical purposes it is as tho such patterns did not exist.
