 80 nicotine dependent adults ages 18-65 who desire to quit smoking will be screened and, if eligible, enrolled and randomized to one of two four-week treatments for smoking cessation. The treatments are standard behavioral therapy and Mindfulness Based Addiction Therapy MBAT, which is standard therapy plus mindfulness. Standard therapy and MBAT incorporate elements of widely-used tools for smoking cessation including managing craving and strong emotions, problem solving, tips on healthy eating and keeping active, and exercises based on cognitive and behavioral therapy. MBAT uniquely incorporates mindfulness practice a relaxation therapy into standard therapy. Participants complete questionnaires and undergo an fMRI scan at baseline and at the end of therapy after they complete the 4 weeks of standard therapy or MBAT. During each scan, participants will complete a validated smoking-related cue paradigm and a validated affect labeling paradigm. 