Physically and mentally healthy adults are needed for a research study at CU-Boulder that involves using a mobile app over 10-14 days and completing an MRI scan. Participants will earn up to $80 for completing the study. In order to participate, you must: Be 18-40 years of age Be right-handed Own a smartphone Qualify based on a short online survey and phone interview If you are interested in participating, please contact us at theMOSTstudy@gmail.com.