Unlike traditional forms of bullying, youth who are the targets of cyber bullying at school are at greater risk for depression than are the youth who bully them, according to a survey conducted by researchers at the National Institutes of Health.

The new finding is in contrast to earlier studies of traditional bullying, which found that the highest depression scores were reported by another category of youth involved in bullying-bully victims. Past studies on traditional bullying show that bully-victims — those who both bully others and are bullied themselves — are more likely to report feelings of depression than are other groups.

Traditional forms of bullying involve physical violence, verbal taunts, or social exclusion. Cyber bullying, or electronic aggression, involves aggressive behaviors communicated over a computer or a cell phone.