Neural explanation of aggression
- Created by: bethgilbert8
- Created on: 02-02-16 20:53
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- Neural explanation of aggression
- AO1
- Serotonin
- Relaxation, inhibits aggressive impulsives
- Low levels associated with aggression, impulsive behaviour and violent suicide
- Serotonin inhibits our response to emotional stimuli that can lead to aggressive behaviour
- Reduced serotonin= reduced ability to control aggressive impulses
- Dopamine
- Reward neurotransmitter for food sex ect - evolutionary
- High levels associated with aggression however not as well established as serotonin
- Serotonin
- AO2
- Dopamine
- Coupiss et al- Dopamine plays reinforcing role in aggression- people seek aggression becuase of rewarding sensationit can provide- inc in dopamine)
- Drug treatment
- Buirelaar (2003)
- Antipsychotics reduce dopamine (antagonist)- when given to violent delinquents, aggression reduced
- Lavine (1997)
- Amphetamines increase dopamine (agonist)- Increase in aggressive behaviour under influence of amphetamines
- Buirelaar (2003)
- Serotonin
- Alcohol and serotonin
- Alcohol causes a decrease in serotonin level - increased alcohol consumption positively corralated with aggression.
- Higley (1996)
- Male Rhesus monkeys- measured serotonin levels. Lowest serotonin more likelly to fight, have scars, pick fights with larger opponents
- Drug treatment
- Mann et al (1990)
- Diet pills lower serotonin- Redux reduces appetite by reducing serotonin. Males more hostile when taking drug (questionnaire)
- Bond (2005)
- Anti-depressants increase serotonin( antagonist) Prozac reduces impulsive aggressive behaviour
- Mann et al (1990)
- Mann et al (1996)
- Violent suicides associated with low serotonin
- Alcohol and serotonin
- Dopamine
- AO3
- Animal studies
- Ethical issue s make it hard to prove/provide evidence
- Gender Bias
- Reductionist
- AO1
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