Effects of Non-Invasive Electrostimulation on students with Anxiety at an university in the Amazon: a randomized clinical trial

INTERVENTION: This is a three‐arm, single‐blind, randomized controlled trial. Volunteers will be randomly allocated via the website (www.randomizer.org) into: tDCS group (Transcranial Direct Current Stimulation), tVNS group (Transcutaneous Vagal Auricular Stimulation) and tVNS Sham group (Simulated Transcutaneous Vagal Auricular Stimulation), each group will have 10 participants. The volunteers will undergo 8 weeks of treatment twice a week and will be assessed using the Beck Anxiety Inventory (BIA) and the Hamilton Anxiety Scale (HAS) before and after the end of the protocol. CONDITION: Anxiety Disorders PRIMARY OUTCOME: We hope to find an improvement in anxiety levels in volunteers undergoing non‐invasive neuromodulation in the tDCS or tVNS modalities. SECONDARY OUTCOME: No secondary outcomes are expected. INCLUSION CRITERIA: be aged between 18 and 40, of both sexes, be a university student at ISB/UFAM, have a clinical diagnosis, according to the criteria of the American Psychiatric Association 5th edition ‐ DSM‐V (2014), of anxiety disorders, and cognitive ability to understand the purpose of the research and to answer the scales and questionnaires