What does the biological approach to aggression encompass?

What does this approach assume?

What is the first factor in this explanation?

What are neurotransmitters?

What are the two main neurotransmitters associated with aggression?

What combination of these neurotransmitters is most associated with aggressive behaviour?

How is serotonin thought to reduce aggression?

What have lower levels of serotonin also been associated with?

Which drug is known to deplete serotonin?

Who conducted an experiment to assess the effects of lowered serotonin levels?

What did they do?

What did their results show?

Who provided evidence for the link between high dopamine levels and aggression?

What did they find?

What did Buitelaar (2003) point out in addition to this?

Who provided research support for this?

What did they do?

What did they consistently find?

What was present in all antisocial groups and particularly in those who had attempted suicide?

What do these findings suggest?

Where did other supporting evidence for the link between serotonin and aggression come from?

Who conducted one of these studies?

What did they conduct their study on?

What did they find?

What did the monkeys who fed on diets low in tryptophan display?

What does this suggest?

What provides empirical support for the impact of low serotonin levels?

What did Bond (2005) set out to do?

What did she therefore suggest?

What did she establish?

What do these drugs also tend to do?

What can we conclude from this?

What is the contradictory evidence related to the role of dopamine in aggressive behaviour?

What did Couppis and Kennedy (2008) find?

What does this suggest?

What is a limitation of the studies by Couppis and Kennedy and Raleigh?

Why is this an issue?

What can we conclude from this?

What is the second factor in this explanation of aggressive behaviour?

What is the hormone in question?

What did Dabbs et al (1987) do?

What did they find?

What did Lindman et al (1987) do?

What did they find?

What did Wingfield et al (1990) propose?

What is the challenge hypothesis?

What was supportive of these claims?

What did they both establish?

What did Archer (1991) do?

What did they find?

What differed substantially between studies?

Who conducted the larger second meta-analysis (24 studies)?

What did they establish?

However, what did Archer et al (2005) claim?

What can we conclude from this?

What is the gender bias in this research?

What did a study by Baucom et al (1985) show?

What do these studies indicate?

What did Eisenegger et al (2011) find?

What does this suggest?

What is the real world application related to?

What did Klinesmith et al (2006) set out to test?

What did they do?

What did they find?

What can we conclude?