Efficacy of Augmentation of Cognitive Behavioral Therapy With Transcranial Direct Current Stimulation for Obsessive-Compulsive Disorder (OCD)

We recruited outpatient adults with OCD confirmed by the Mini-International Neuropsychiatric Interview (MINI). The following inclusion and exclusion criteria were also applied: Who May Qualify: (1) 18-50 years old, with at least 9 years of education, (2) Y-BOCS score ≥16, (3) no history of serious medical, neurological illness or other psychotic disorders other than OCD (anxiety or mild to moderate depression secondary to OCD was not exclusionary), (4) medication-free or had received stable medication for at least 2 months before entering the study and continued the same medication throughout the study (5) no previous exposure to ERP or tDCS. Who Should NOT Join This Trial: - history of serious medical, neurological illness or other psychotic disorders other than OCD - The inability to receive tDCS because of metallic implants, or history of seizures，or history of head injury, or history of neurosurgery. - Participants who have received ECT, rTMS, tDCS and CBT in the past. - Participants with claustrophobic, heart pacemaker, mechanical heart valve, mechanical implant such as an aneurysm clip, hip replacement, or any other pieces of metal that have accidentally entered their body. - serious suicide risk Always talk to your doctor about whether this trial is right for you.