Optimization of NIBS for Treatment of Addiction

"Device: Active comparator device: Active transcranial Direct Current Stimulation (tDCS). Subjects will receive 20 minutes of active tDCS. During each Active stimulation session, stimulation will be applied for the full 20 minutes.~Device: Active comparator device: Active Transcranial Ultrasound (TUS). Subjects will receive 20 minutes of active Transcranial Ultrasound (TUS). During active stimulation the (TUS) will be active for the full 20 minutes."

"Device: SHAM Comparator Device: transcranial Direct Current Stimulation (tDCS) Subjects will receive 20 minutes of sham tDCS. In the sham group, the tDCS device will not be active for the full 20 minutes.~Device: Transcranial Ultrasound (TUS) Subjects will receive 20 minutes of sham TUS. During sham stimulation the ultrasound will not be active for the full 20 minutes."