This is a multi-site study to examine error-related brain activity (i.e., the error-related negativity) and anxiety symptoms in 11 to 14 year-olds (N=600) at two time points separated by two years. The study examines the degree to which error-related negativity can predict anxiety prospectively over two years, and whether a computerized game that alters attention to threat can alter error-related negativity and trajectories of anxiety.

Approximately 600 youths between the ages of 11 and 14 and their parents will be assessed. Adolescents will be evaluated at baseline using event-related potentials, self-report, and interview-based measures. The error-related negativity will be evaluated immediately (it takes less than 5 minutes to process and score a single subjects' error-related negativity ), and adolescents with good error-related negativity data (~90%, based on scorable error-related negativity data) will be randomly assigned to either an 8-week (i.e., 16 session) adaptive attention bias modification (N=180) or control condition (N=180) or a waitlist condition (N=180) group. Each session lasts 20 minutes, and participants will be asked to complete two 20-minute sessions per week. Participants will be assessed immediately at post, using the same measures from the baseline assessment. All participants will complete a 2-year follow-up lab visit using the same measures from the baseline assessment.

Inclusion Criteria:

• children and parent must speak English well enough to complete the study assessments

Exclusion Criteria:

• current threat of harm to self or others, bipolar illness, psychosis, thought disorder, pervasive developmental disorder, mental retardation, neurological diseases that impair cognition, or significant head injuries (past 3 months).

Data is being uploaded to the Research Domain Criteria Database, and will be available through National Institute of Mental Health Data Archive; the analyzed data yielded in our project, as specified in the same document (i.e., 12 months after accomplishment of each primary aim or objective, or immediately upon publication of the project's primary results, whichever occurs first).

Research assistants assign participants to condition; the investigator is unaware of the assignment. Participants are unaware of the distinction between ABM and CC, though they would know if they were in the wait list group.