Additional Study Information: The goal of this study is to examine how effective and well-tolerated a possible new treatment for individuals who injure themselves frequently will be. All research procedures can be done from home no in-person visits are required. We are studying a minimal-risk form of electrical brain stimulation called transcranial direct current stimulation, or tDCS. Previous studies using tDCS have shown that it is helpful in treating conditions like depression and chronic pain. tDCS is administered using two small electrodes that are applied to the scalp. A low current is applied to the electrodes using a battery-operated device. The study involved receiving 12 tDCS administrations over the course of two weeks. Each tDCS session lasts 20 minutes. During tDCS procedures, you may experience a mild tingling sensation or irritation on your scalp; headaches are another possible side-effect. Side-effects from tDCS are most frequently described by participants as mild, and do not tend to continue after tDCS sessions are completed. We will explain all of the possible risks and benefits of participation in this research study to you in detail before you decide whether to participate. You will receive $150 in compensation when you complete the study procedures and will be offered three months of medication-based treatment with a psychiatrist in our division at no cost.