Frontal lobe injuries, violence, and aggression: a report of the Vietnam Head Injury Study.
Neurology
; 46(5): 1231-8, 1996 May.
Article
en En
| MEDLINE
| ID: mdl-8628458
Knowledge stored in the human prefrontal cortex may exert control over more primitive behavioral reactions to environmental provocation. Therefore, following frontal lobe lesions, patients are more likely to use physical intimidation or verbal threats in potential or actual confrontational situations. To test this hypothesis, we examined the relationship between frontal lobe lesions and the presence of aggressive and violent behavior. Fifty-seven normal controls and 279 veterans, matched for age, education, and time in Vietnam, who had suffered penetrating head injuries during their service in Vietnam, were studied. Family observations and self-reports were collected using scales and questionnaires that assessed a range of aggressive and violent attitudes and behavior. Two Aggression/Violence Scale scores, based on observer ratings, were constructed. The results indicated that patients with frontal ventromedial lesions consistently demonstrated Aggression/Violence Scale scores significantly higher than controls and patients with lesions in other brain areas. Higher Aggression/Violence Scale scores were generally associated with verbal confrontations rather than physical assaults, which were less frequently reported. The presence of aggressive and violent behaviors was not associated with the total size of the lesion nor whether the patient had seizures, but was associated with a disruption of family activities. These findings support the hypothesis that ventromedial frontal lobe lesions increase the risk of aggressive and violent behavior.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Violencia
/
Lesiones Encefálicas
/
Agresión
/
Lóbulo Frontal
/
Traumatismos Craneocerebrales
/
Personal Militar
Tipo de estudio:
Observational_studies
/
Qualitative_research
/
Risk_factors_studies
Aspecto:
Determinantes_sociais_saude
Límite:
Adult
/
Child
/
Female
/
Humans
/
Male
País/Región como asunto:
America do norte
/
Asia
Idioma:
En
Revista:
Neurology
Año:
1996
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
Estados Unidos