We are looking for kids ages 14-17 to participate in a paid fMRI study on brain development. Participants will spend 1 hour in a MRI scanner performing cognitive tasks and then 1 hour outside of the scanner answering questionnaires. Participants will be paid $50-$60 and will be provided with images of their brain. To be eligible, you must: - be 14-17 year old - have parental permission - right handed - meet MR safety requirements - no braces - not neurological disorder. Interested? please email Harry at costudies@gmail.com re: CU Adol EF