Background: Biofeedback is a type of neurofeedback that delivers a graphical knowledge rich in multimedia for the brain waves and produces a feedback signal on brain activity using the multimedia skills of computers and, thus, teaches self-regulation. It has been examined as potential treatment in recent years.
Primary Study Objective: The aim of the present study was to recognize variations in symptoms of depression in terms of electroencephalogram (EEG) neuronal mechanisms underlying quantitative electroencephalography (QEEG) neurofeedback.