Glossary S

Schizoid personality disorder refers to a syndrome marked by a chronic lack of interest in and avoidance of interpersonal relationships as well as emotional coldness in interactions with others; a Cluster A personality disorder characterized by social withdrawal and/or odd or strange mannerisms; symptoms include magical thinking, ideas of reference, illusions, and derealization.

Schizophrenia refers to a psychotic mental disorder of unknown etiology characterized by disturbances in thinking, mood, and behavior.

Schizophrenia spectrum disorders is a term used by some researchers to characterize a continuum of disorders, including Schizophrenia, Schizoid personality disorder, and Schizotypal personality disorder.

Schizophrenia, catatonic type refers to a type of Schizophrenia characterized by a variety of bodily movement abnormalities.
Schizophrenia, disorganized type refers to a type of Schizophrenia characterized by a combination of symptoms, including disorganized speech and behavior and flat or inappropriate affect. Even delusions and hallucinations lack a coherent theme.
Schizophrenia, paranoid type refers to a type of Schizophrenia characterized by preoccupation with one or more bizarre delusions or with auditory hallucinations that are related to a particular theme of being persecuted or harassed.
Schizophrenia, residual type refers to a a type of Schizophrenia in which people who have previously been diagnosed as having Schizophrenia may no longer have prominent psychotic symptoms but still show some lingering signs of the disorder, such as emotional dullness, social withdrawal, eccentric behavior, or illogical thinking.

Schizophrenia, undifferentiated type refers to a type of Schizophrenia characterized by a complex of schizophrenic symptoms, such as delusions, hallucinations, incoherence, or disorganized behavior, that does not meet the criteria for other types of schizophrenia.

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