Biological studies Flashcards
1
Q
What was the classic study for Biological?
A
Raine et al
2
Q
What were the basics of Raine?
A
Raine brain scanned prisoners who claimed NGRI to see if they had a different structure of brain activity. He found that they did, they showed less activity in the frontal lobe and parietal lobe but more in the occipital lobe
3
Q
3 fact of Raine?
A
- He himself had a brain of a psycho
- He had 82 ppts (half were controls) (NGRIs- 39 men, 2 women)
- They were kept medication-free for two weeks before
4
Q
Negatives with this study? (Raine et al)
A
- Raine himself had a psycho brain and therefore he said the results were circumstantial
- Data taken is subjective
- It was very reductionist, saying crime is due to brain structure, their are many factors contributing.
5
Q
What is the contemporary study for Biological?
A
Brendgen
6
Q
What were the basics of Brendgen?
A
She wanted to find whether social aggression and physical aggression were different in 6 year and to investigate whether the link is down to genetics or social situation by comparing MZ and DZ twins
7
Q
3 facts of Brendgen?
A
- 94 identical, 140 non-identical
- 50-60% of physical aggression is linked to genes
- 20% for social aggression
8
Q
Negatives with this study? (brendgen)
A
- It is all a correlation not 100%
- Bregden asked them to judge their classmates, could have caused conflict
- The twins may have influenced each others behaviour and therefore had nothing to do with genetics
