Mental Health Book

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Psychosis Types

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  1. Model: Classic Schizophrenia Typing
    1. Paranoid
      1. Delusions
      2. Frequent auditory hallucinations
      3. Intact cognitive function and affect
    2. Disorganized
      1. Disorganized Speech and behavior
      2. Inappropriate or flat affect
    3. Catatonic (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
      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
      1. Not paranoid, disorganized, or catatonic type
  2. Model: Alternative Three-Factor Classification
    1. Type
      1. Psychotic
      2. Disorganized
      3. Negative (deficit)
    2. Severity
      1. Absent
      2. Mild
      3. Moderate
      4. Severe
  3. References
    1. (2000) DSM IV, APA, p. 297-343
    2. Freedman (2003) N Engl J Med 349:1738
    3. Schultz (2007) Am Fam Physician 75:1821

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