Mood Disorders

The exact cause of schizoaffective disorder is unknown, but the same factors that cause the development of psychosis and mood disorder may play a role (MedLinePlus, 2004). These factors include a strong genetic predisposition and other biochemical factors. Schizoaffective disorder is less common than schizophrenia or mood disorders, but its exact frequency of occurrence is not known. Women tend to be affected more than women, but it is rare in children (MedlinePlus, 2004; National, 2005).

The signs and symptoms of schizoaffective disorder include all those of mood disorder and psychosis, which may appear simultaneously or in an alternating pattern (MedLinePlus, 2004). The disorder usually follows a cyclic course of worsening symptoms followed by periods of improvement. Symptoms vary greatly from one patient to the next, but symptoms of clinical depression and mania include elevated, inflated or depressed mood; irritability

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