Learning in Young Adults as Predictor for the Development of Alcohol Use Disorders

Inclusion Criteria: * men at age 18 * ability to provide fully informed consent and to use self-rating scales * habitual social drinking during the three months preceding participation, defined by at least two drinking days in any four weeks-interval * being able to provide information concerning biological parents and grandparents Exclusion Criteria: * lifetime history of Diagnostic Statistical Manual-IV bipolar or psychotic disorder * current diagnosis of one of the following disorders: major depressive disorder, generalized anxiety disorder, PTSD, borderline personality disorder, or obsessive-compulsive disorder * prior treatment for any axis-I or axis-II disorder except for specific disorders of childhood and adolescence (i.e., oppositional defiant disorder, conduct disorder, ADHD) * history of substance dependence other than nicotine dependence * current substance use other than nicotine and alcohol as evinced by positive urine screen * history of severe head trauma or other severe central neurological disorder (e.g. multiple sclerosis) * any alcohol intake in the last 24 hours before test days * use of medications or illicit substances known to interact with the central nervous system within the last 10 days or at least four half-lives post last intake