Raine Et Al

Question 1

Aims

Answer 1

To discover any brain structure differences between those who committed crimes(NGRIS) and those who did not commit crimes

Question 2

IV

Answer 2

Ppts matched on sex , age , ethnicity

Natural experienent

Question 3

Sample

Answer 3

41 ppts - 39 males ,2 women
41 ppts in control
Ppts had a series of brain damage, schizophrenia, epilepsy
Control group had no mental illnesses except 6 that had schizophrenia

Question 4

Process

Answer 4

Conducted in uni of california , ppts were injected with glucose tracer then made to do a CPT for 10 minutes

A PET scan was rhen taken

Question 5

Findings

Answer 5

Damage to prefrontal cortex- rational thinking, self restraint

Damage to parietal love - abstract thinking such as morality , justice

Linbic systen- more damages to the right hand side than the left which is correlated with aggressioj

Question 6

Conclusions

Answer 6

Prefrontal deficits - making it harder with self control much more impulsive , and emotional

Lnbic system deficits - makes a person much more aggressive
Amygdala when imbalanced correlated with higher levels of aggression
Thalamus- processing information, hippocampus- processing memory
Maling it harder to then learn from mistakes

Parietal love deficits- lack of judgement and morality,having it difficult to be able to make social judgements , more likely to overreact from social situations

Question 7

Conclusions

Answer 7

Prefrontal deficits - making it harder with self control much more impulsive , and emotional

Lnbic system deficits - makes a person much more aggressive
Amygdala when imbalanced correlated with higher levels of aggression
Thalamus- processing information, hippocampus- processing memory
Maling it harder to then learn from mistakes

Parietal love deficits- lack of judgement and morality,having it difficult to be able to make social judgements , more likely to overreact from social situations

Question 8

Support

Answer 8

High generalisability
High sample size to the point where anomalies wouldnt have much of an affect, showing representativeness
High control over all variables

Question 9

Negatives

Answer 9

However ppts were NGRIs, people who showed confusion while in trual or don’t rneneber murdering this isnt a good representation of those who commit violence or of all murders , showing a lack of reliability

Question 10

Negative.2

Answer 10

Raine admits that there were issues with the PET scan

Was left to intrepretation showing subjectivity, this can affect the experiment as itd show low reliability