Adolescenceâ€"beginning with the onset of puberty and ending in the mid-20sâ€"is a critical period of development during which key areas of the brain mature and develop. These changes in brain structure, function, and connectivity mark adolescence as a period of opportunity to discover new vistas, to form relationships with peers and adults, and to explore one's developing identity. It is also a period of resilience that can ameliorate childhood setbacks and set the stage for a thriving trajectory over the life course. Because adolescents comprise nearly one-fourth of the entire U.S. population, the nation needs policies and practices that will better leverage these developmental opportunities to harness the promise of adolescenceâ€"rather than focusing myopically on containing its risks. This report examines the neurobiological and socio-behavioral science of adolescent development and outlines how this knowledge can be applied, both to promote adolescent well-being, resilience, and development, and to rectify structural barriers and inequalities in opportunity, enabling all adolescents to flourish.

Adolescence is one of the most fascinating and complex transitions in the human life span. Its breathtaking pace of growth and change is second only to that of infancy. Over the last two decades, the research base in the field of adolescence has had its own growth spurt. New studies have provided fresh insights while theoretical assumptions have changed and matured. This summary of an important 1998 workshop reviews key findings and addresses the most pressing research challenges.

More children born today will survive to adulthood than at any time in history. It is now time to emphasize health and development in middle childhood and adolescence--developmental phases that are critical to health in adulthood and the next generation. Child and Adolescent Health and Development explores the benefits that accrue from sustained and targeted interventions across the first two decades of life. The volume outlines the investment case for effective, costed, and scalable interventions for low-resource settings, emphasizing the cross-sectoral role of education. This evidence base can guide policy makers in prioritizing actions to promote survival, health, cognition, and physical growth throughout childhood and adolescence.

Adolescence is a distinct, yet transient, period of development between childhood and adulthood characterized by increased experimentation and risk-taking, a tendency to discount long-term consequences, and heightened sensitivity to peers and other social influences. A key function of adolescence is developing an integrated sense of self, including individualization, separation from parents, and personal identity. Experimentation and novelty-seeking behavior, such as alcohol and drug use, unsafe sex, and reckless driving, are thought to serve a number of adaptive functions despite their risks. Research indicates that for most youth, the period of risky experimentation does not extend beyond adolescence, ceasing as identity becomes settled with maturity. Much adolescent involvement in criminal activity is part of the normal developmental process of identity formation and most adolescents will mature out of these tendencies. Evidence of significant changes in brain structure and function during adolescence strongly suggests that these cognitive tendencies characteristic of adolescents are associated with biological immaturity of the brain and with an imbalance among developing brain systems. This imbalance model implies dual systems: one involved in cognitive and behavioral control and one involved in socio-emotional processes. Accordingly adolescents lack mature capacity for self-regulations because the brain system that influences pleasure-seeking and emotional reactivity develops more rapidly than the brain system that supports self-control. This knowledge of adolescent development has underscored important differences between adults and adolescents with direct bearing on the design and operation of the justice system, raising doubts about the core assumptions driving the criminalization of juvenile justice policy in the late decades of the 20th century. It was in this context that the Office of Juvenile Justice and Delinquency Prevention (OJJDP) asked the National Research Council to convene a committee to conduct a study of juvenile justice reform. The goal of Reforming Juvenile Justice: A Developmental Approach was to review recent advances in behavioral and neuroscience research and draw out the implications of this knowledge for juvenile justice reform, to assess the new generation of reform activities occurring in the United States, and to assess the performance of OJJDP in carrying out its statutory mission as well as its potential role in supporting scientifically based reform efforts.

Adolescence is a time when youth make decisions, both good and bad, that have consequences for the rest of their lives. Some of these decisions put them at risk of lifelong health problems, injury, or death. The Institute of Medicine held three public workshops between 2008 and 2009 to provide a venue for researchers, health care providers, and community leaders to discuss strategies to improve adolescent health.

Over recent years, it has become clear that group-based approaches cannot directly be used to understand individual adolescent development. For that reason, interest in dynamic systems theory, or DST, has increased rapidly. Psychosocial Development in Adolescence: Insights from the Dynamic Systems Approach covers state-of-the-art insights into adolescent development that have resulted from adopting a dynamic systems approach. The first chapter of the book provides a basic introduction into dynamic systems principles and explains their consequences for the study of psychosocial development in adolescence. Subsequently, different experts discuss why and how we should apply a dynamic systems approach to the study of the adolescent transition period and psychological interventions. Various examples of the application of a dynamic systems approach are showcased, ranging from basic to more advanced techniques, as well as the insights they have generated. These applications cover a variety of fundamental topics in adolescent development, ranging from the development of identity, morality, sexuality, and peer networks, to more applied topics such as psychological interventions, educational dropout, and talent development. This book will be invaluable to both beginner and expert-level students and researchers interested in a dynamic systems approach and in the insights that it has yielded for adolescent development.

Adolescence: The Transitional Years presents the intricate physical, emotional, and behavioral changes that occur during the years between childhood and adulthood. This book provides psychological studies of adolescence and the methods used to gain information about adolescent development. Organized into 12 chapters, this book begins with an overview of the contributions of psychology to understanding the transition from childhood to adulthood. This text then reviews the changes at puberty, including the sequence of development for girls and boys and the underlying physiological mechanisms responsible. Other chapters consider the cultural variations in the mode of transition from childhood to adulthood. This book provides as well a brief overview of the psychological dimensions of self-identity. The final chapter deals with the educational experience for adolescents and examines the factors associated with different levels of educational attainment. This book is a valuable resource for developmental psychologists, sociologists, geneticists, anthropologists, theorists, and research workers.