Some of the categories depend on clinical syndromes, some on personality disorders, some on social disorders. Many people with behavior disorders are anxiety disorders, sometimes called Neurosis or anxiety disorder , involving a great deal of anxiety and often develops symptoms which have the effect of reducing the anxiety. Compared with pschosis or schzophrenia, Neurosis or anxiety disorder is mild. An anxiety disorder may merely impairs the individual's efficiency or his happiness. A schizophrenic disorder may involve the individual being confused, he may have inappropriate feelings, he may hear or see things, and he may behave in bizarre ways.
Personality disorders are disorders of trait or pattern.
They may be mild or severe. Usually there is little anxiety involved in these disorders because the afflicted person sees his disorder as part of himself, rather than alien to himself. We will study personality disordes after we have discussed the anxiety and schizophrenic disorders. The categories are not as clear-cut as they may seem to be at first. Just as there is no sharp dividing line between normal and abnormal behavior, there is no clear border between the various kinds of behavior disorder.