Adolescence is a developmental period that entails substantial changes in affective and incentive-seeking behavior relative to both childhood and adulthood, including a heightened propensity to engage in risky behaviors and experience persistent negative and labile mood states. This review discusses the emotional and incentive-driven behavioral…

Adolescence is the transition from childhood to adulthood, a period during which an individual acquires the skills necessary to survive on his or her own, away from parents or other caregivers. Adolescence can be a very confusing time. They experience changes in sleep, diet, mood, weight and attitude and a decreased pleasure from daily activities.…

This book focuses on transitions into young adulthood by examining key roles and experiences of young adults and how they relate to changes in drug use. The findings are based on the nationwide Monitoring the Future project, and represent the majority of individuals who entered young adulthood in the United States during the years 1976 through…

This paper presents information from the ongoing research program, Monitoring the Future. The program is designed to: (1) monitor drug use and potential explanatory factors among American secondary school students, and other young adults; (2) distinguish which of three different kinds of change--maturational, historical, and/or cohort are…