Combined tDCS and Cognitive Training as an Adjunctive Treatment in Opioid Use Disorder

We will deliver 2-mA tDCS current intensity during a 30 minute stimulation period (including a 30-second ramp-up and 30-second ramp-down period) to the dorsolateral prefrontal cortex. Electrodes will be fixed on marked locations based on the 10-20 EEG system. Anodal stimulating electrode will be over the left DLPFC (F3) and cathodal electrode over the right DLPFC (F4).

electrodes will have the same montage as active tDCS (F3/F4), but current will be ramped down after the initial 30 seconds ramp-up period. Thus, participants will feel the initial sensation associated with tDCS but will receive no active current for the rest of the stimulation period.