Neurologic Factors. A recent Canadian study investigated the relationship between resting frontal brain electrical activity (electroencephalogram [EEG]), emotional intelligence, and aggression and rule breaking in 10-year-old children. Frontal resting brain electrical activity has been hypothesized to reflect the ability to regulate emotionality. Results of this study indicate that children with higher reported externalizing behaviors had significantly greater relative right frontal EEG activity during rest than children with little or no reported aggressive behavior. Boy tended to show lower emotional intelligence and greater aggressive behavior than girls. No relationship, however, was found between emotional intelligence and pattern of frontal EEG activation. This study suggests an association between resting pattern of EEG activation and aggressive behavior.