Major depressive disorders (MDD) is a common mental disease that affects patients’ life quality and functioning and traditional diagnostic methods have errors so that new technological tools are urgently needed to improve the accuracy of diagnosis. The aim of the study is to investigate the application of electroencephalography (EEG) technology and to analyze the potential in the evaluation and treatment of patients with MDD. EEG technology can effectively identify specific frequency bands to patients, combining with the analysis of frontal alpha asymmetry (FAA), which could provide a new way in diagnosis of MDD. Meanwhile, deep brain electrical stimulation (DBS) technology offers new opportunities for targeted treatment. Studies have shown that EEG technology can improve the diagnostic accuracy of MDD. Additionally, the stimulation feedback mechanism of DBS technology in different brain regions provides new ideas for the treatment of Treatment-Resistant Depression (TRD).This study provides a scientific basis for the evaluation and treatment of MDD, and exhibits the future application of EEG and DBS technologies in the field of psychiatric disorders which may change the treatment paradigm for MDD patients.
