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Introduction to Schizophrenia and Related Disorders

By S. Charles Schulz, MD

Schizophrenia and related disorders—brief psychotic disorder, delusional disorder, schizoaffective disorder, and schizophreniform disorder—are characterized by psychotic symptoms and often by negative symptoms and/or cognitive dysfunction. Psychotic symptoms include delusions, hallucinations, disorganized thinking and speech, and bizarre and inappropriate motor behavior (including catatonia). Negative symptoms refer to a decrease in or lack of normal emotions and behaviors, such as having a flattened affect and lack of motivation. Cognitive dysfunction involves mainly sustained attention and working memory.

* This is the Professional Version. *