- Diagnosis and classification of Schizophrenia:
- Classification of schizophrenia
- No single defining characteristic:
- Schizophrenia is a collection of seemingly unrelated symptoms. There are many misconceptions and exaggerations surrounding the nature of schizophrenia.
- classifications include DSM-5 and ICD-10, in DSM-5, one positive symptom must be present (delusions, hallucinations or speech disorganisation. In ICD-10, 2 or more negative sympotoms are sufficient for diagnosis (avoliation and speech poverty)
- Postive symptoms are additional experiences beyond those of the ordinary existence.
- hallucinations - Sensory experiences that have no basis in reality or distorted perceptions of real things. Experienced in relation to any sense. For example, hearing coices, seeing pople who aren't there etc.
- Delusions - Beliefs that have no basis in reality - make a person woth schizpohrenia behave in ways that make sense to them but not to others. For example, belifes about bein a very important person, or the victim of a conspiracy.
- Negative symptoms:
- Avoliation - Severe loss of motivation to carry out everyday tasks (work, hobbies, personal care etc). Results in lowered activity levels and unwillingness to carry out goal-girected behaviours.
- Speech poverty - A reduction in the amount and quality of speech. May include a delay in verbal responses during conversation. DSM emphsises speech disorganisation and incoherence.
- Issues in diagnosis:
- Reliability - the extent to which the diagnosis of schizophrenia is consistent.
- Validity - The extent to whoch the diagnosis and…
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