At a glance
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Using Combined EEG and Non-invasive Brain Stimulation to Examine and Improve Reward Functioning in Opioid Use Disorder
In Brief
A clinical study evaluating Active repetitive transcranial magnetic stimulation (rTMS) and Sham repetitive transcranial magnetic stimulation (rTMS) for Opioid-use Disorder. Completed, enrolled 81 participants across 1 site.
Detailed Summary
The primary aims of this study are to identify impaired cognitive control in opioid use disorder (OUD) and subsequently to examine the effects of transcranial magnetic stimulation (TMS) on reward processing, as measured by the reward positivity (an electrophysiological signal) in people with OUD. To this end, the investigators will adopt a randomized sham-controlled trial to evaluate the efficacy of Ri-TMS on cognitive control in OUD. The investigators hypothesize that Ri-TMS will be successful in modulating the reward positivity in opioid users in the active TMS condition.
Study Details
Timeline
Interventions
rTMS will be used to stimulate neuronal activity of the dorsolateral prefrontal cortex (DLPFC). Participants will receive no more than 2000 pulses of rTMS at 110% of participants' resting motor threshold at 10 Hz continuously for the duration of the t-maze task.
Sham TMS will be used to mimic the auditory sensation of the Active rTMS condition. Protocols for the sham condition will be the same as the active condition, however the TMS coil will be flipped 180 degrees so that participants in this condition will not receive any active stimulation.