Cannabis Use and Driving Performance

Increased legalization of medical and recreational cannabis has led to concern about a possible proliferation of cannabis-impaired drivers. Dahlgren and colleagues noted that most of the research on the effects of cannabis for driving have focused on acutely intoxicated individuals rather than the non-immediate effects of heavy recreational use. They administered tests in a driving [...]

A Developmental Neuroscience Approach to Sex Education for Adolescents

High rates of unintended pregnancy and sexually transmitted infections (STIs) among American teens have cast doubt on the effectiveness of current models of sex education in the schools. Suleiman and Brindis (2014) suggested that these models view sexual behavior as the result of a rational decision making process and ignore emotional and motivational factors. They [...]

Brain Imaging and Lie Detection

Previous research has pointed to the inability of humans to reliably detect lies in others. Studies have demonstrated that polygraph data is also frequently inaccurate and unreliable, and it is generally prohibited as admissible evidence in courtrooms in the U.S. Thus, new forms of technology have been sought as an objective method of lie detection. [...]

Your Brain on Violent Video Games

As video games become increasingly violent and realistic, researchers have sought to determine whether – and how—they may affect aggressive behavior. Engelhardt and colleagues tested desensitization theory, which states that repeated exposure to violent images results in a decrease, or habituation, of emotional, cognitive, and physiological responses to violence. The authors measured previous video game [...]

Should the Science of Adolescent Brain Development Inform Public Policy?

The line between adolescence and adulthood varies greatly in U.S. legal and social policy, with little consistency in determinations about the age at which one may purchase alcohol or cigarettes, drive, make medical decisions, join the military, vote, or be tried for a crime as an adult. Although there is strong consensus among neuroscientists that [...]