Procedures To enroll in this study, the participants must have a positive urine test for cocaine and will answer to semi-structured clinical interviews (SCID and ASI-6) on the first week. When the urine test becomes negative (mean in days: 9.48 ± 3.06), the pre assessment will be applied (Neuropsychological and Psychopathological Assessment, Functional Magnetic Resonance Imaging, Brain-derived neurotrophic factor levels and Cortisol levels) . Then the participants will participate in 10 sessions of MC or AC for approximately 3 weeks. At the end, if the urine test remains negative, the post assessment will be applied (about one month of abstinence of cocaine use). The urine toxicology test will be used to have an objective measure of recent use and abstinence.