A01 Diagnosis And Classification Of Schizophrenia

• Schizphrenia


  A mental disorder experienced by about 1% of the world population and is more common in men, cities and working class people.
• Classificaiton of Schizophrenia


  Schizphrenia does not have a single defining charcteristic as it is a cluster of unrelated symptoms.
• The two major systems for classiciation of mental disorders

  WHOs International Classification of disease (ICD-10) and the American Diagnostic and Statisical mannual (DSM-5).
• Difference in diagnosis

  Only one positive symptom required for diagnosis in DSM-5 but for ICD-10, two negative symptoms must be present.
• ICD-10


  Recognises different subtypes. Paranoid schizophrenia is powerful delusion and hallucinations. Hebephrenic schizophrenia primarily involves negative symptoms. Catatonic schizophrenia = disturbance to movement.
• Positive symptoms


  Gained symptoms of schizophrenia that are excesses of behavior. Includes hallucinations (Unusual sensory experiences), delusions (paranoia and irrational beliefs), and distorted thinking
• Negatives symptoms


  Loss of usual abilities and experiences. Includes avolition (apathy and lack of goal-directed activity and motivation.) and speech poverty (reduction in amount and quality of speech. Accompanied by a delay in a person's varbal response, DSM-5 calls this 'speech disorganisation')