Types of Schizophrenia

Schizophrenia	Types of Schizophrenia
Psychotic Symptoms	Schizoaffective Disorder
Delusional Disorder	Schizophreniform Disorder
Shared Psychotic Disorder	Brief Psychotic Disorder

There are presently five subtypes of schizophrenia. The diagnostic criteria for each of these subtypes is listed below.

Catatonic Schizophrenia:

A type of Schizophrenia in which the clinical picture is dominated by at least two of the following:

(1) motoric immobility as evidenced by catalepsy (including waxy flexibility) or stupor

(2) excessive motor activity (that is apparently purposeless and not influenced by external stimuli)

(3) extreme negativism (an apparently motiveless resistance to all instructions or maintenance of a rigid posture against attempts to be moved) or mutism

(4) peculiarities of voluntary movement as evidenced by posturing (voluntary assumption of inappropriate or bizarre postures), stereotyped movements, prominent mannerisms, or prominent grimacing

(5) echolalia or echopraxia

Disorganized Schizophrenia:

A type of Schizophrenia in which the following criteria are met:

A. All of the following are prominent:

(1) disorganized speech

(2) disorganized behavior

(3) flat or inappropriate affect

B. The criteria are not met for Catatonic Type.

Paranoid Schizophrenia:

A type of Schizophrenia in which the following criteria are met:

A. Preoccupation with one or more delusions or frequent auditory hallucinations.

B. None of the following is prominent: disorganized speech, disorganized or catatonic behavior, or flat or inappropriate affect.

Residual Schizophrenia:

A type of Schizophrenia in which the following criteria are met:

A. Absence of prominent delusions, hallucinations, disorganized speech, and grossly disorganized or catatonic behavior.

B. There is continuing evidence of the disturbance, as indicated by the presence of negative symptoms or two or more symptoms listed in Criterion A for Schizophrenia, present in an attenuated form (e.g., odd beliefs, unusual perceptual experiences).

Undifferentiated Schizophrenia:

A type of Schizophrenia in which symptoms that meet Criterion A are present, but the criteria are not met for the Paranoid, Disorganized, or Catatonic Type.