results do NOT demonstrate...

Cards (5)

...that violent behaviour is determined by biology alone; social, cultural and situational factors play important roles in predisposition to violence
...that results do not show that NGRI murderers are not responsible for their actions, nor that PET scans can be used as a means of diagnosing violent criminals
... that brain dysfunction causes violence. it may even be that brain dysfunction is an effect of violence
... that violence can be explained by the results; the results only relate to criminal behaviour
... a link between brain dysfunction and a predisposition towards violence in this specific group of NGRI murderers, which should be further investigated