Aggression - The Genetic Explanation Flashcards
What is the genetic explanation of aggression argue?
Genes influence our level of aggression.
Different gene alleles make people behave more or less aggressively.
What research support is there from twin studies that jeans influence aggress?
There is a higher concordance rate of criminal behaviour in monozygotic twins. This demonstrates the genetics role in influencing the likelihood of aggressive behaviour.
What research support from adoption studies aids the genetic explanation to aggression?
An adoption study found that children who displayed criminal behaviour were significantly more likely to have biological parent who also displayed criminal behaviour, therefore the similarity between adopted children and their biological parents must be due to genetics.
What is the MAOA gene?
Produces a chemical that controls the number of neurotransmitters like serotonin available at the synapse.
Short allele is linked to higher aggression.
Long allele is linked to lower aggression.
What did Frazzetto find about the MAOA gene?
Found a correlation between low activity in the MAOA gene and high levels of aggression in adult men.
