Inhibiting unwanted thoughts, actions and emotions figures centrally in daily life, and the
prefrontal cortex (PFC) is widely viewed as a source of this inhibitory control. We argue that …

OBJECTIVE: Adolescence is a developmental period that entails substantial changes in risk-
taking behavior and experimentation with alcohol and drugs. Understanding how the brain …

Context Functional magnetic resonance imaging studies in attention-deficit/hyperactivity
disorder (ADHD) revealed fronto-striato-parietal dysfunctions during tasks of inhibition and …

Adolescence is a developmental period often characterized as a time of impulsive and risky
choices leading to increased incidence of unintentional injuries and violence, alcohol and …

Adolescent risk-taking is a public health issue that increases the odds of poor lifetime
outcomes. One factor thought to influence adolescents' propensity for risk-taking is an …

Attention Deficit Hyperactivity Disorder (ADHD) has long been associated with abnormalities
in frontal brain regions. In this paper we review the current structural and functional imaging …

In recent years, multiple noninvasive imaging modalities have been used to develop a better
understanding of the human brain functionality, including positron emission tomography …

Background Psychostimulant medication, most commonly the catecholamine agonist
methylphenidate, is the most effective treatment for attention-deficit/hyperactivity disorder …

Attention deficit/hyperactivity disorder (ADHD) is among the most common neurobehavioral
disorders requiring treatment in children and adolescents. The disorder is often chronic, with …

Extraordinary progress in functional brain imaging, primarily advances in functional
magnetic resonance imaging, now allows scientists to understand the neural systems …