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6. How does serotonin affect aggression?
- High levels of cortisol inhibits testosterone leading to low levels of testosterone which reduces aggression
- It activates areas of the brain dealing with aggression increasing levels of aggression
- Inhibits aggressive responses to emotional stimuli
- Stimulates aggressive responses to emotional stimuli
7. What did Archer et al. find?
- The link between aggression and testosterone is higher in females than males
- Castration(reducing testosterone levels) of schizophrenics (High dopamine levels) had no effect on aggressive tendencies
- Low levels of cortisol in habitual violent offenders
8. What effect does testosterone have on aggression?
- High levels of cortisol inhibits testosterone leading to low levels of testosterone which reduces aggression
- Inhibits aggressive responses to emotional stimuli
- It activates areas of the brain dealing with aggression increasing levels of aggression
- Stimulates aggressive responses to emotional stimuli
9. Which study found in clinical studies of antidepressants (increases serotonin levels) impulsive aggression and irritability were reduced?
- Vikeuken
- Bond
- Scarbo and Raine
- Buitlaar
10. What do amphetamines also do as well as increase aggressive behaviour?
- It increases noradrenaline which acts on the CNS and triggers the fight or flight response, so this may increase aggression.
- Reduces dopamine
11. Which study found that castration(reducing testosterone levels) of schizophrenics (High dopamine levels) had no effect on aggressive tendencies?
- Dabbs et al.
- Bremmer
- Virkkunen
- Wagner et al.
12. Low levels of serotonin....
- No aggression
- Highly aggressive
- Passive Aggressive
13. What did Lavine find?
- In clinical studies of antidepressants (increases serotonin levels) impulsive aggression and irritability were reduced
- Amphetamines are drugs that increase dopamine increased aggressive behaviour
- Anti-psychotic drugs (reduces dopamine) increased aggressive behaviour
14. What did Dabbs et al find?
- Testosterone levels in saliva were able to correctly differentiate between violent and non-violent criminals.
- Low levels of cortisol in habitual violent offenders
- castrated male mice showed decreased aggression which then increased when given testosterone
15. Describe how cortisol affects aggression
- High levels of cortisol inhibits testosterone leading to low levels of testosterone which reduces aggression
- Stimulates aggressive responses to emotional stimuli
- Inhibits aggressive responses to emotional stimuli
- It activates areas of the brain dealing with aggression increasing levels of aggression
16. What did Virkkunen find?
- Low levels of cortisol in habitual violent offenders
- Castration(reducing testosterone levels) of schizophrenics (High dopamine levels) had no effect on aggressive tendencies
- In clinical studies of antidepressants (increases serotonin levels) impulsive aggression and irritability were reduced
17. What did Scarbo and Raine find?
- anti-psychotic drugs (reduces dopamine) increased aggressive behaviour
- Low levels of serotonin are linked to aggression
- Drugs that decrease serotonin levels increase measures of hostility