Causes of Schizophrenia (unfinished)
- Created by: BecsaBabe
- Created on: 29-01-16 12:47
View mindmap
- Causes of Schizophrenia
- Social Causation Hypothesis
- A01
- Environmental Breeder Hypthesis
- Being lower class males you more venerable to schizophrenia due to stress
- due to unemployment, poor housing and low social status
- Being lower class males you more venerable to schizophrenia due to stress
- Schizophrenia is more common in urban areas
- Environmental Breeder Hypthesis
- A02
- Cause and effect hard to establish
- Might be stress from the environment causing schizophrenia rather than the environment itself
- Doesn't explain why drugs work when excess dopamine isn't the cause
- Lower class sufferers treated differently
- Eaton - reported on 17 studies, high rates of schizophrenia in lower classes
- Doesn't follow stressful events such as the great depression
- Cause and effect hard to establish
- A01
- Dopamine Hypothesis
- A01
- Caused by high levels of dopamine in the brain
- mesolimbic = positive symptoms
- mesocortical = negative symptoms
- when given amphetamines symptoms get worse
- When given L-DOPA it was used up more quickly in schizophrenia patients suggesting they have more dopamine in their brains
- Some dopamine agonists don't induce the symptoms
- Caused by high levels of dopamine in the brain
- A02
- Iverson - post-mortems show high levels of dopamine in schizophrenics
- Drugs reduce positive symptoms but not negative symptoms as well so not a full explaination
- Anti schizophrenic drugs cause symptoms similar to Parkinson desease which is caused by lack of dopamine
- May be a result of being schizophrenic, not a cause
- Takes up to 4 weeks to see improvements when the drugs take action immediately.
- Randrup and Munkvad found that by giving amphetamines to rats it increases schizophrenic symptoms supporting dopamine hypothesis
- A01
- Social Causation Hypothesis
Comments
No comments have yet been made