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depression and addiction - Coggle Diagram

- - - - AIM
        
        why stressful life event lead to depression in some people but not others.
      - procedure
        
        participant : 847 people divide in three group (by length of their 5HTT genes
        
        alleles
        
        group 1 short and short
        
        group 2 short and long
        
        group 3 long and long
        
        measure 1 : find stressfl life event by life-history calender
        
        measure 2 : interveiw schedule and informant (some one lose to him)
        
        result
        
        measure 1 : no different
        
        measure 2 : 17% had been diagnosed with depression 3% attempt suicide
        
        group 1 tend to have highest depression symtom follow b group 2 and then 3
    - - strength
        
        high generalisability : a lot of people attend
        
        ecological validity : about daily life
      - weakness
        
        internal validity : no measurement
        
        high subjectivity : interview (may effect the result)
  - - - monozygotic twin : 100% identical
      - dizygotic twin : 50% identical twin
- - - - identical twin have a higher to become to addiction than DZ twin
      - exam concordance rate
      - there for suggesting that smoking could become genetic
    - - DDR2 gene receptor of dopamine
      - dopamine associated with feeling of happiness and pleasure
      - cocaine addiction often occur with wpeople who have A1 dopamine
    - - strength
        
        remove stigma
        
        evidence support
      - weakness
        
        reductionistic
        
        cannot show and effect
  - - - social learning
        
        learning from observe and imitate role model
      - operant condition
        
        leaning and repeat the action
      - classical condition
        
        learning through association (stop the addiction)
    - - strenght
        
        useful can be adapt to use in hospital
        
        holistic - explain cause and effect
      - weakness
        
        cannot show and effect
        
        focuses too much on the role of nurture