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This thematic issue brings together papers by researchers who are studying the ways that today's adolescents interact with their peers, families, and the larger media environment in the digital age. The contributors highlight both the challenges
and the opportunities that this new age presents for the healthy development of young people. (author's abstract)

The articles in this thematic issue suggest both opportunities and hazards for the health and development of adolescents in the digital age. We place these concerns in the context of improving health for young people in the US and elsewhere, and suggest that based on evidence uncovered to date, increasing digital connection may be having no less favorable than adverse effect on adolescents. (author's abstract)

Gerbner and Gross's cultivation theory predicts that prolonged exposure to TV violence creates fear of crime, symptomatic of a mean world syndrome. We tested the theory's prediction in a time series model with annual changes in violence portrayal on popular US TV shows from 1972 to 2010 as a predictor of changes in public perceptions of local crime rates and fear of crime. We found that contrary to the prediction that TV violence would affect perceptions of crime rates, TV violence directly predicted fear of crime holding constant national crime rates and perceptions of crime rates. National crime rates predicted fear of crime but only as mediated by perceptions of local crime rates. The findings support an interpretation of cultivation theory that TV drama transports viewers into a fictive world that creates fear of crime but without changing perceptions of a mean world.

Media and the Well-Being of Children and Adolescents presents cutting-edge research from the field's leading scholars. It considers both traditional media as well as "new" media (such as the Internet), offering a balanced view of the challenges and opportunities media pose for young people's healthy development.

Scholars analyze the emergence of youth culture in music and powerful trends in gender and ethnic-racial representation sexuality, substance use, and violence in the media in this text. It shows the evolution of teen portrayal, the potential consequences, and the ways policy-makers and parents can respond

In The Changing Portrayals of Adolescents in the Media since 1950, leading scholars analyze the emergence of youth culture in music and powerful trends in gender and ethnic-racial representation, sexuality, substance use, violence, and suicide portrayed in the media. This book illuminates the evolution of teen portrayal, the potential consequences of these changes, and the ways policy-makers and parents can respond.

The authors argue that the recent increase in poker play among adolescent males in the United States was primarily attributable to high-status male youth who are more able to organize informal gambling games (e.g., poker and sports betting) than are low-status male youth who are left to gamble on formal games (e.g., lotteries and slot machines). Using participation in sports as a proxy for status, the authors test the prediction that male athletes were more likely to engage in informal gambling and were largely responsible for the recent and much-discussed poker craze among adolescents. These and related predictions are supported using data from consecutive cross-sectional surveys of American youth from 2002 to 2008. Despite their social status, however, male youth engaging in informal gambling are more at risk for gambling problems than are those engaging in formal gambling. The authors discuss the dilemmas that their findings present for the prevention of problem gambling in young people.

Suicide is a leading cause of death among youth, and media depictions of suicidal behavior can be a contributing risk factor. Of interest, Instagram recently received more scholarly attention due to its large number of publicly available, explicit, and graphic depictions of self-harm. Importantly, researchers have hypothesized that exposure to this content could be a risk for self-harm and suicide in vulnerable audiences. We tested this hypothesis using a two-wave US panel survey among young adults ( N = 729). Analyses indicated that exposure to self-harm on Instagram was associated with suicidal ideation, self-harm, and emotional disturbance even controlling for exposure to other sources with similar content. As hypothesized, exposure to self-harm on Instagram at the first wave prospectively predicted self-harm and suicidality-related outcomes at the second wave 1 month later. These findings provide evidence that such exposure can lead to contagion in vulnerable users. Implications are discussed.

The internet has transformed the way youth communicate, learn, and network, with implications for their broader social, psychological, and physical health and well-being. With the technological capability of accessing the internet from anywhere, at any time, paired with the enormous variety of internet activities in which youth engage - from social networking to chatting to streaming videos to playing games to watching television content - instances of problematic internet behavior have emerged. We conducted an online national survey of 629 US adolescents ages 12–17 years old and a matching survey of one of their parents. We investigated the relationship between problematic internet behavior and parental monitoring, parental mediation of internet use, and parental estimates of their adolescent's time spent using computers. Analyses showed that problematic internet use was associated with less parental monitoring and parental mediation and poorer parental relationships. Adolescents that spent a lot of time on the computer were also more likely to engage in problematic internet use. Although we cannot determine the direction of the relationships, results support the important role of parents in adolescents' problematic internet use. (author's abstract)