biological reasons for aggression
- Created by: patrick flood
- Created on: 07-03-14 11:30
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- biological reasons for aggression
- neural mechanisms
- damage/abnormality to specific brain areas
- prefrontal cortex- known to be involved in impulse control
- people may find it difficult to control aggressive impulses
- amygdala known to be involved in emotion
- leads to more anger which leads to more aggression
- prefrontal cortex- known to be involved in impulse control
- neurotransmitters
- low levels of serotonin= more difficult to inhibit aggressive impulses
- alcohol reduces serotonin
- could explain the link between alcohol and aggression
- alcohol reduces serotonin
- dopamine may increase aggression
- amphetamine abuse increases dopamine levels
- Analgesics been shown to reduce aggressive behaviour
- dopamine is also the main neurotransmitter of reward
- low levels of serotonin= more difficult to inhibit aggressive impulses
- damage/abnormality to specific brain areas
- hormonal mechanisms
- testosterone makes people more aggressive
- highest in young men
- low cortisol is also linked to aggression
- affects arousal
- may act in aggressive ways to increase levels
- testosterone makes people more aggressive
- genetic factors
- aggressive behaviour may be inherited
- MAOA (warrior gene)
- MAOAL low activity version of this gene
- if the person has had an aggressive upbringing
- people may inherit specific personality traits
- neural mechanisms
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