Repetitive Transcranial Magnetic Stimulation Treatment of Stimulant Use Disorder

Inclusion Criteria: * Structured Clinical Interview for DSM Disorders (SCID) confirmed diagnosis of SUD, severe * Last use of stimulants \>2 and \<8 weeks * Stable medication regimen (no change in dose or agents between 2 weeks prior to the start of and throughout the treatment phase of the study) * Stable medical health Exclusion Criteria: * Pregnant or lactating female * History of prior adverse reaction to TMS * On medications thought to significantly lower seizure threshold, e.g. clozapine, chlorpromazine, clomipramine, and bupropion \> 400mg/day * Seizure disorder or conditions known to substantially increase risk for seizures * Implants or medical devices incompatible with TMS * Acute or unstable chronic medical illness that would affect participation or compliance in the study, e.g. unstable angina * Unstable psychiatric symptoms that precludes consistent participation in the study, e.g. active current suicidal intent or plan; severe psychosis * Other substance use disorder not in remission * Chronic or recurring Axis I psychotic disorders * For subjects participating in fMRI scans, presence of ferromagnetic material in their body or taking DAergic medications