Women who smoke during pregnancy risk delivering aggressive kids according to a new Canada-Netherlands study published in the journal Development and Psychopathology.

A new study in Human Communication Research reveals that verbally aggressive (VA) mothers tend to control their children’s choice of activities as well as use physical negative touch, along with directives, when trying to alter their child’s actions.

Children who are neglected before their second birthday display higher levels of aggressive behavior between ages 4 and 8, according to a University of North Carolina at Chapel Hill study, published today in the journal Pediatrics.

Aggressive behavior and bullying, common among schoolchildren, are likely to have multiple causes, one of which may be an undiagnosed sleep-related breathing disorder (SRBD), according to a research abstract that will be presented Wednesday at SLEEP 2007, the 21st Annual Meeting of the Associated Professional Sleep Societies (APSS).

It is no secret that video games and television programs often depict graphic violence. But now, three new studies show violence causes children, teenagers and young adults to behave more aggressively than those who watch non-violent media. In addition, there is also a debate swirling in Washington, D.C.on how to shield children from violent TV shows.

The culture of a school can dampen - or exacerbate - the violent or disruptive tendencies of aggressive young teens, new research indicates. A large-scale study from the University of Illinois found that while personal traits and peer interactions have the most direct effect on the aggressive behavior of middle school students, the school environment also influences student aggression.

ISU Distinguished Professor of Psychology Craig Anderson, Assistant Professor of Psychology Douglas Gentile, and doctoral student Katherine Buckley share the results of three new studies in their book, "Violent Video Game Effects on Children and Adolescents" (Oxford University Press, 2007). It is the first book to unite empirical research and public policy related to violent video games.

The latest installment of a long-term study of child care in the United States has found that children who spent more time in center-based settings from birth through school entry have somewhat more problems with aggressive and disobedient behavior through sixth grade than children who spent less time in centers, regardless of the quality of care.