Schizophrenia
This disorder can cause delusions, hallucinations, or both. This disorder persists for at least 6 months, and often has a profound impact on a person's daily life and relationships.
Schizoaffective Disorder
A person diagnosed with schizoaffective disorder displays symptoms of schizophrenia and those of a mood disorder, such as bipolar disorder or depression.
Short-Term Psychotic Disorders
Sometimes, a person is affected by a psychotic disorder for only a short time. Schizophreniform disorder occurs when a person displays symptoms of schizophrenia for less than 6 months. A person diagnosed with brief psychotic disorder experiences a short duration of psychotic symptoms (generally less than one month), which is often brought on by a stressful life event.