Support from longitudinal studies

• What did Dustin Pardini et Al (2014) find in their study of aggressive males?

  • studied 503 males from childhood to adulthood

  • MRI scans of a subgroup of 56 men who had long histories of aggression

  • found smaller amygdala volume was linked to higher aggression over 20 years
• Why is this study important?

  • shows amygdala volume may predict future aggression

  • findings remained valid even after controlling for IQ, substance use, race, and early behaviour