raine et al 1997

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4 Terms

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Aim

to investigate whether there was localised brain dysfunction in offenders pleading not guilty by reason of insanity (NGRI) compared to non-offenders

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sample

4, all had from form of mental impairment

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Procedure

Took part in continuous performance task. The activity of different areas of the brain was measured using a PET scan. This technique measures the uptake of glucose in different parts of the brain

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Findings

  • significant differences in brain activity between the NGRI group and control group

  • NGRI group demonstrated less activity in prefrontal areas (impulse control and aggression)

  • abnormalities in amygdala