Raine et al (1997)

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  • Raine et al Brain abnormalities in murderers.
    • Research method
      • Quasi experiment (IV- murderers v non murderers. DV-levels of activity in areas of brain associated with crime behaviour
    • Results
      • Compared to the controls, NGRIs had less activity in the corpus callosum, less activity in the left side and more activity in the right side in the amygdala and the hippocampus which has been liked with violence.
    • Sample
      • 41 controls (39 male and 2 female) matched by age and gender.
      • 41 murderers (39 male, 2 female)
    • Conclusion
      • Murderers pleading NGRI have significant differences in the metabolism of glucose in a number of brain areas compared to non-murderers.
    • Aim
      • Investigate whether offenders who commit murder and plead NGRI have localised brain dysfunction including areas of amygdala/prefrontal cortex
    • Procedure
      • Ppp's had 10 mins to practice continuous performance task and were injected with a tracer. 32 minutes later they were put into the PET scanner and each had an individually moulded head holder

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