Nexalin Therapy for the Treatment of Depressive Symptoms

This randomized, double-blind, placebo-controlled, multi-center trial has 3 different treatment arms. Study Tools: * Hamilton Depression Rating Scale (HAM-D21) * Clinical Global Impressions (CGI) * Montgomery-Asberg Depression Rating Scale (MADRS) * Beck's Depression Inventory * Hamilton Anxiety Rating Scale (HAM-A) * Hospital Anxiety and Depression Scale (HADS)