Schizophrenia is a psychiatric diagnosis that describes a mental disorder characterized by impairments in the perception or expression of reality and by significant social or occupational dysfunction. A person experiencing untreated schizophrenia is typically characterized as demonstrating disorganized thinking, and as experiencing delusions or auditory hallucinations. Although the disorder is primarily thought to affect cognition, it can also contribute to chronic problems with behavior and emotion. Due to the many possible combinations of symptoms, there is ongoing and heated debate about whether the diagnosis necessarily or adequately describes a disorder, or alternatively whether it might represent a number of disorders. For this reason, Eugen Bleuler deliberately called the disease "the schizophrenias" plural, when he coined the present name.
Diagnosis is based on the self-reported experiences of the patient, in combination with secondary signs observed by a psychiatrist, clinical psychologist or other competent clinician. There is no objective biological test for schizophrenia, though studies suggest that genetics, neurobiology and social environment are important contributing factors. Current research into the development of the disorder often focuses on the role of neurobiology, although a reliable and identifiable organic cause has not been found. In the absence of objective laboratory tests to confirm the diagnosis, some question the legitimacy of schizophrenia's status as a disease. Furthermore, some question the status of schizophrenia as a disease on the basis that they do not consider their condition to be an impairment.
More on [ Schizophrenia ]

Schizophrenia Fellowship - Contact details for the 18 local branches of the Schizophrenia Fellowship around New Zealand and information on schizophrenia.