Accelerated, Theta-burst Stimulation for the Treatment of Post-concussion Syndrome

Inclusion Criteria: * Documented evidence of head trauma sufficiently severe to result in loss of consciousness, post-traumatic amnesia and/or acute altered mental status. * At least three symptoms including headache, dizziness, fatigue, irritability, insomnia, memory difficulties, concentration difficulties, mood dysregulation. * Onset of symptoms within 4 weeks following the head trauma. * Age 18-60, inclusive. * Persistence of PCS symptoms for at least 3 months but less than 12 months * Able to provide informed consent and comply with the study protocol * Patients will not be excluded solely on the basis of communication (i.e., non-English speaking) unless they have exclusion criteria that is the cause of the communication difficulties. Exclusion Criteria: * Evidence of major structural neuroimaging abnormalities (e.g., intracranial hemorrhage, skull fracture or a large intracranial lesion) * History of prior rTMS therapy, * Contraindications to MRI (e.g., pacemaker, metallic implants etc.). * Ferromagnetic, non-removable metallic implants from above the clavicle with the exception of dental work. * Active personal injury litigation * History of seizure disorder, not including febrile seizures in childhood * Substance dependence within the last 6 months * Pregnant * Currently taking more than lorazepam 2 mg daily (or benzodiazepine equivalent) or any dose of an anticonvulsant (due to the potential to reduce rTMS efficacy) * Currently taking an antiepileptic medication * Mild and major comorbid medical conditions (as determined by investigators - e.g., neurological diseases, uncontrolled hypertension or diabetes, malignancy) * A major comorbid psychiatric disorder (as determined by investigators - e.g., schizophrenia or bipolar disorder) and/or psychosis at the time of study enrollment