OBJECTIVES To establish the link between frontal lobe dysfunction and violent and criminal behaviour, based on a review of relevant literature.
METHODS Articles relating evidence of frontal lobe dysfunction with violence or crime were collected through a MEDLINE search using the keyword “frontal lobe” combined with the terms “aggression,” “violence,” “crime,” “antisocial personality disorder,” “psychopathy,” “impulse control disorders”, and “episodic dyscontrol.” Reference lists were then searched for additional articles.
RESULTS High rates of neuropsychiatric abnormalities reported in persons with violent and criminal behaviour suggest an association between aggressive dyscontrol and brain injury, especially involving the frontal lobes. The studies reviewed support an association between frontal lobe dysfunction and increased aggressive and antisocial behaviour. Focal orbitofrontal injury is specifically associated with increased aggression. Deficits in frontal executive function may increase the likelihood of future aggression, but no study has reliably demonstrated a characteristic pattern of frontal network dysfunction predictive of violent crime.
CONCLUSIONS Clinically significant focal frontal lobe dysfunction is associated with aggressive dyscontrol, but the increased risk of violence seems less than is widely presumed. Evidence is strongest for an association between focal prefrontal damage and an impulsive subtype of aggressive behaviour.
- frontal lobe dysfunction
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Review history and Supplementary material
Brower MC, Price BH.
Neuropsychiatry of frontal lobe dysfunction in violent and criminal behaviour: a critical review.
J Neurol Neurosurg Psychiatry 2001;71;720-726.
In the Discussion, the fifth line of fourth paragraph currently reads:
'...reflexive aggression. The actual frequency of violent behaviour, however...'
and should read:
'...reflexive aggression[14-20]. The actual frequency of violent behaviour, however...'
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