classification of Schizophrenia

• 1% of the population suffer from schiz
• the typical age for onset schiz is early 20s or late adolescence
• what is used to classify or diagnose disorders?

  the DSM (Diagnostic and Statistical Manual of Mental Disorders)
• the DSM is produced by the APA
• how many sets of criteria does the DSM-5 have?

  3
• what are the 3 sets of criteria used by the DSM-5

  A - key symptoms

  B - social/ occupational dysfunction

  C - duration
• A - key symptoms

  2 or more of the symptoms have to present for a portion of time during a 1 month period
• A - key symptoms

  • delusions
  • hallucinations
  • disorganised speech
  • grossly disorganised or catatonic behaviour
  • negative symptoms
• B - social/ occupational dysfunction

  for some time since onset of schiz, 1 or more areas of function (work, interpersonal relations or self-care) are below level achieved before onset
• C - duration

  • theres continuous signs of disturbance for 6 months (include 1 month for symptoms from criteria A)
  • disturbance may be limited to negative symptoms (or 2 or more in criteria A in attenuated form).