Diagnosis 0.0 / 5 ? PsychologySchizophreniaA2/A-levelAQA Created by: ella_whitebreadCreated on: 19-10-15 13:05 Acute Onset Hallucinations and delusions appear suddenly after a stressful event, within a few days. 1 of 11 Chronic Onset The individual loses drive and drifts away from family and friends, delusions and other symptoms gradually occur. 2 of 11 ICD-10 International Classification of Diseases (Worldwide) 3 of 11 DSM-5 Diagnostic and Statistical Manual (USA) 4 of 11 ICD-10 Criteria To be diagnosed a person must have 1 of the symptoms from category 1 or 2 of the symptoms from category 2 for at least one month. 5 of 11 Category 1 Thought control, Delusions of Control, Hallucinatory voices and other delusions 6 of 11 Category 2 Persistent delusions, incoherent/irrelevant speech, catatonic behaviour and negative symptoms 7 of 11 Negative Symptoms Taking away something you had before e.g. Disruption of emotions 8 of 11 Positive Symptoms Something adding to your personality e.g. hallucinations and delusions 9 of 11 Schneider 1959 Identified that Sz patients often report positive symptoms 10 of 11 Slater & Roth 1969 Identified that Sz patients often show behaviours of negative symptoms 11 of 11
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