Schizophrenia
- Created by: fs20/22
- Created on: 06-12-21 18:29
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- Schizophrenia
- Biological explanations for schizophrenia
- Genetic explanation
- Dopamine hypothesis
- Other neurotransmitters
- Neural correlates
- Aetiology = cause
- Schizophrenia
- Positive symptoms
- Change in behaviour
- Hallucinations: hearing or seeing things
- Tactile: someone touching them
- Somatic: something inside body
- Delusions: belief contradicted by reality
- Grandeur e.g. think they’re Jesus
- Controlled e.g. aliens
- Reference e.g. song lyrics contain personal message
- Guilt e.g.think they killed someone
- Negative symptoms
- Lack of function
- Speech poverty/ alogia
- Avolition: low activity levels
- Diagnosis
- Reliability = consistency
- Validity = identifying illness it claims to
- Symptom overlap: 2+ conditions share symptoms
- ICD-10: only negative symptoms, DSM-5: only positive symptoms
- Positive symptoms
- Psychologicalexplanations for schizophrenia
- Family dysfunction
- Highly expressed emotion
- Double blind: no way out of situation without being told off
- Adverse family environment, caregivers attitude
- Cognitive explanations
- fMRI scans show reduced activity in brain
- Abnormal information processing
- Negative schemas
- Lead to over generalisation magnification selective perception & absolutist thinking = dysfunctionalbehaviour
- Can develop from unrealistic demands from parents/ teachers as a child
- Family dysfunction
- Biological therapies for schizophrenia: drug therapy
- Antipsychotics treat symptoms
- Typical antipsychotics: block dopamine receptors in the synapse
- Atypical antipsychotics: bind to serotonin & dopamine receptors
- Side effects e.g. dizziness, agitation, weight gain
- Psychological therapies for schizophrenia
- Cognitive behavioural therapy (CBT)
- Becks cognitive trials: self, world, future
- Identifies patterns which reinforce dysfunctionalthinking
- Family therapy
- Token economy
- Operant conditioning
- Cognitive behavioural therapy (CBT)
- The interactionist approach to schizophrenia
- Acknowledges all factors including biological, psychological& societal
- Diathesis-stress model
- Diathesis: vulnerability/ predisposition e.g. genetics
- Stress: tigger e.g. bereavement
- Effective treatment = medication + CBT
- Biological explanations for schizophrenia
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