Findings

• What was reduced in NGRI murderers compared to the control group?

  Brain activity in both hemispheres
• What method was used to measure brain activity in the study?

  FDG tracer uptake
• Which areas of the brain showed reduced activity in NGRI murderers?


  Prefrontal cortex, left angular gyrus, corpus callosum
• What was the relationship of the areas with reduced activity to violence?


  Previously linked to violence
• What asymmetries were observed in the NGRI group?


  Reduced left hemisphere activity, increased right hemisphere activity
• Which brain areas showed increased activity in the NGRI group?


  Amygdala, hippocampus, thalamus
• What was the finding regarding differences in brain areas linked to mental illness?

  No differences between NGRI and control groups
• Which brain areas were mentioned as not showing differences related to mental illness?


  Caudate, putamen, globus pallidus, midbrain
• What was the result of the Continuous Performance Test (CPT) between groups?

  No differences in performance
• What conclusion can be drawn about brain activity differences and CPT performance?

  Differences in brain activity were not due to CPT