But because it has been misunderstood for so long, it has received relatively little attention and its victims have been undeservingly stigmatized. Schizophrenia is not a split personality, a rare and very different disorder. Schizophrenia is, in fact, a relatively common disease, with an estimated one percent to one and a half percent of the U.S. population being diagnosed with it over the course of their lives. While there is no known cure for schizophrenia, it is a very treatable disease. Most of those afflicted by schizophrenia respond to drug therapy, and many are able to lead productive and fulfilling lives.
Schizophrenia is characterized by a constellation of distinctive and predictable symptoms.
The symptoms that are most commonly associated with the disease are called positive symptoms, that denote the presence of grossly abnormal behavior. These include thought disorder, delusions, and hallucinations. Thought disorder is the diminished ability to think clearly and logically. Often it is manifested by disconnected and nonsensical language that renders the person with schizophrenia incapable of participating in conversation, contributing to his alienation from his family, friends, and society. Delusions are common among individuals with schizophrenia.