Blurred vision, impaired motor coordination and memory, and slurred speech are characteristics that clearly demonstrate that alcohol affects the brain. Adolescence is a time when people begin to use alcohol much more frequently. A survey of 70,000 people by the Center for Science in Public Interest has shown that 41.7% of people ages 12-17 have used alcohol in their lifetimes, and that the prevalence of binge drinking (five or more drinks in the same occasion) gradually increases from 3% at age 13, to 38% at age 20 (CSPI, 2000). Extreme intensities of alcohol consumption among adolescents is especially perturbing because a great deal of structural and function brain development occurs during this period. (Spears, 2002). Furthermore, evidence is increasingly suggesting that alcohol affects brain function and behavior of adolescents differently from adults, and that adolescents are extremely vulnerable to the long-term deleterious effects alcohol has on brain function and behavior.