Psychosis Type

Aka: Psychosis Type, Schizophrenia Type, Catatonic Schizophrenia, Disorganized Schizophrenia, Paranoid Schizophrenia, Residual Schizophrenia

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II. Model: Classic Schizophrenia Typing

  1. Paranoid Schizophrenia
    1. Delusions
    2. Frequent Auditory Hallucinations
    3. Intact cognitive function and affect
  2. Disorganized Schizophrenia
    1. Disorganized Speech and behavior
    2. Inappropriate or flat affect
  3. Catatonic Schizophrenia (2 or more of the following)
    1. Immobility (stupor or Catalepsy)
    2. Posturing, grimacing or other mannerisms
    3. Stereotyped movements (excessive and purposeless)
    4. Echolalia or Echopraxia
    5. Extreme Negative Symptoms in Psychosis
      1. Resistance to instructions
      2. Rigid Posture
      3. Mutism
  4. Residual Schizophrenia
    1. Persistent Negative Symptoms in Psychosis
      1. Poverty of speech
      2. Flat affect
    2. Attenuated Positive Symptoms in Psychosis
      1. Mild Hallucinations or Delusions
      2. Eccentric behavior
      3. Odd beliefs
      4. Mildly Disorganized Speech
  5. Undifferentiated Schizophrenia
    1. Not paranoid, disorganized, or Catatonic type

III. Model: Alternative Three-Factor Classification

  1. Type
    1. Psychotic
    2. Disorganized
    3. Negative (deficit)
  2. Severity
    1. Absent
    2. Mild
    3. Moderate
    4. Severe

IV. References

  1. (2013) DSM V, American Psychiatric Association, p. 99
  2. (2000) DSM IV, American Psychiatric Association, p. 297-343
  3. Freedman (2003) N Engl J Med 349:1738-49 [PubMed]
  4. Schultz (2007) Am Fam Physician 75:1821-9 [PubMed]

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