Diagnosis and classification of schizophrenia
- Created by: oliviasimmons99
- Created on: 16-06-17 17:50
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- Diagnosis and classification of schizophrenia
- Classification of schizophrenia
- No single defining characteristic
- Sz is a collection of seemingly unrelating symptoms
- There's many misconceptions and exaggerations surrounding the nature of sz
- DSM-5 and ICD-10 differ
- DSM-5: one positive symptom must be present
- ICD-10: two or more negative symptoms must be present
- No single defining characteristic
- Symptoms of schizophrenia
- Positive symptoms = additional experiences beyond those of ordinary extistence
- Hallucinations
- Sensory experiences that have no basis in reality or distorted perceptions of real things, experienced in relation to any sense
- E.g. hearing voices or seeing people who aren't there
- Delusions
- Beliefs that have no basis in reality - makes a people with sz behave in ways that make sense to them but are bizarre to others
- E.g. beliefs about being a very important person or the victim of a conspiracy
- Hallucinations
- Negative symptoms = loss of usual abilities and experiences
- Avolition
- Results in lowered activity levels and unwillingnessto carry out goal-directed behaviours
- Severe loss of motivation to carry out everyday tasks (e.g. work, hobbies, personal care)
- Speech poverty
- A reduction in the amout and quality of speech, may include a delay in verbal responses during conservation
- DSM emphasises speech disorganisation and incoherence
- Avolition
- Positive symptoms = additional experiences beyond those of ordinary extistence
- Issues in diagnosis
- Co-morbidity
- Occurence of two illnesses together which confuses diagnosis and treatment
- Validity
- The extent to which the diagnosis and classification techniques measure what they are designed to measure
- Symptom overlap
- When two or more conditions share symptoms, questioning the validity of classification
- Reliability
- The extent to which the diagnosis of sz is consistent
- Co-morbidity
- Classification of schizophrenia
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