Neural and/or hormonal Mechanisms in Aggression

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1. What effect does testosterone have on aggression?

  • It activates areas of the brain dealing with aggression increasing levels of aggression
  • High levels of cortisol inhibits testosterone leading to low levels of testosterone which reduces aggression
  • Inhibits aggressive responses to emotional stimuli
  • Stimulates aggressive responses to emotional stimuli
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Other questions in this quiz

2. What did Scarbo and Raine find?

  • Low levels of serotonin are linked to aggression
  • Drugs that decrease serotonin levels increase measures of hostility
  • anti-psychotic drugs (reduces dopamine) increased aggressive behaviour

3. Alternative theory

  • Griffiths' biopsychosocial theory
  • Diathesis-Stress

4. 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

5. 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

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