GeoScan and Remote Geo Smoking Study: Neural and Behavioral Correlates of Smokers' Exposure to Retail Environments

Individual participation in this study will take place over a period of approximately 2 months. During (approximately) 6 weeks of the active study period, the participant will be asked to share their geolocation information, complete either (a) 3 online sessions (for all participants in 850796) and an optional fMRI scan (for a subset of protocol 850796) or (b) 3 in-person visits (2 of which involve getting fMRI brain scans, for protocol 822815), and complete short surveys and repeated tasks (e.g., responding to Ecological Momentary Assessment \[EMA\], using study-provided funds to make small purchases from a specified retail environment) in the weeks between visits.