| 1. | Otte C, Gold S M, Penninx B W, et al. Major depressive disorder. Nat Rev Dis Primers, 2016, 2: 16065. | 
				                                                        
				                                                            
				                                                                | 2. | Lui S, Zhou X J, Sweeney J A, et al. Psychoradiology: The frontier of neuroimaging in psychiatry. Radiology, 2016, 281(2): 357-372. | 
				                                                        
				                                                            
				                                                                | 3. | Serra-Blasco M, Portella M J, Gomez-Anson B A, et al. Effects of illness duration and treatment resistance on grey matter abnormalities in major depression. Br J Psychiatry, 2013, 202(6): 434-440. | 
				                                                        
				                                                            
				                                                                | 4. | Machino A, Kunisato Y, Matsumoto T, et al. Possible involvement of rumination in gray matter abnormalities in persistent symptoms of major depression: An exploratory magnetic resonance imaging voxel-based morphometry study. J Affect Disord, 2014, 168: 229-235. | 
				                                                        
				                                                            
				                                                                | 5. | Abdallah C G, Jackowski A, Sato J R, et al. Prefrontal cortical GABA abnormalities are associated with reduced hippocampal volume in major depressive disorder. Eur Neuropsychopharmacol, 2015, 25(8): 1082-1090. | 
				                                                        
				                                                            
				                                                                | 6. | Phillips J L, Batten L A, Tremblay P A, et al. A prospective, longitudinal study of the effect of remission on cortical thickness and hippocampal volume in patients with Treatment-Resistant depression. Int J Neuropsychopharmacol, 2015, 18(8): pyv037. | 
				                                                        
				                                                            
				                                                                | 7. | van Eijndhoven P, Mulders P, Kwekkeboom L, et al. Bilateral ECT induces bilateral increases in regional cortical thickness. Transl Psychiatry, 2016, 6(8): e874. | 
				                                                        
				                                                            
				                                                                | 8. | Guo Wenbin, Liu Feng, Chen Jindong, et al. Altered white matter integrity of forebrain in treatment-resistant depression: A diffusion tensor imaging study with tract-based spatial statistics. Prog Neuropsychopharmacol Biol Psychiatry, 2012, 38(2): 201-206. | 
				                                                        
				                                                            
				                                                                | 9. | de Diego-Adelino J, Pires P, Gomez-Anson B, et al. Microstructural white-matter abnormalities associated with treatment resistance, severity and duration of illness in major depression. Psychol Med, 2014, 44(6): 1171-1182. | 
				                                                        
				                                                            
				                                                                | 10. | Peng Hongjun, Zheng Huirong, Ning Yuping, et al. Abnormalities of cortical-limbic-cerebellar white matter networks may contribute to treatment-resistant depression: a diffusion tensor imaging study. BMC Psychiatry, 2013, 13: 72. | 
				                                                        
				                                                            
				                                                                | 11. | Murrough J W, Collins K A, Fields J, et al. Regulation of neural responses to emotion perception by ketamine in individuals with treatment-resistant major depressive disorder. Transl Psychiatry, 2015, 5: e509. | 
				                                                        
				                                                            
				                                                                | 12. | Johnston B A, Tolomeo S, Gradin V A, et al. Failure of hippocampal deactivation during loss events in treatment-resistant depression. Brain, 2015, 138(Pt 9): 2766-2776. | 
				                                                        
				                                                            
				                                                                | 13. | Yamamura T, Okamoto Y, Okada G, et al. Association of thalamic hyperactivity with treatment-resistant depression and poor response in early treatment for major depression: a resting-state fMRI study using fractional amplitude of low-frequency fluctuations. Transl Psychiatry, 2016, 6: e754. | 
				                                                        
				                                                            
				                                                                | 14. | Guo W B, Liu F, Xue Z M, et al. Alterations of the amplitude of low-frequency fluctuations in treatment-resistant and treatment-response depression: a resting-state fMRI study. Prog Neuropsychopharmacol Biol Psychiatry, 2012, 37(1): 153-160. | 
				                                                        
				                                                            
				                                                                | 15. | Guo W B, Liu F, Chen J D, et al. Abnormal neural activity of brain regions in treatment-resistant and treatment-sensitive major depressive disorder: a resting-state fMRI study. J Psychiatr Res, 2012, 46(10): 1366-1373. | 
				                                                        
				                                                            
				                                                                | 16. | Cheng W, Rolls E T, Qiu J, et al. Medial reward and lateral non-reward orbitofrontal cortex circuits change in opposite directions in depression. Brain, 2016, 139(12): 3296-3309. | 
				                                                        
				                                                            
				                                                                | 17. | He Zongling, Cui Qian, Zheng Junjie, et al. Frequency-specific alterations in functional connectivity in treatment-resistant and -sensitive major depressive disorder. J Psychiatr Res, 2016, 82: 30-39. | 
				                                                        
				                                                            
				                                                                | 18. | Guo Wenbin, Liu Feng, Xue Zhimin, et al. Abnormal resting-state cerebellar-cerebral functional connectivity in treatment-resistant depression and treatment sensitive depression. Prog Neuropsychopharmacol Biol Psychiatry, 2013, 44: 51-57. | 
				                                                        
				                                                            
				                                                                | 19. | Lefebvre D, Langevin L M, Jaworska N A, et al. A pilot study of hippocampal N-acetyl-aspartate in youth with treatment resistant major depression. J Affect Disord, 2017, 207: 110-113. | 
				                                                        
				                                                            
				                                                                | 20. | Yang Xiaoru, Langevin L M, Jaworska N, et al. Proton spectroscopy study of the dorsolateral prefrontal cortex in youth with familial depression. Psychiatry Clin Neurosci, 2016, 70(7, SI): 269-277. | 
				                                                        
				                                                            
				                                                                | 21. | Li C T, Su T P, Wang S J, et al. Prefrontal glucose metabolism in medication-resistant major depression. Br J Psychiatry, 2015, 206(4): 316-323. | 
				                                                        
				                                                            
				                                                                | 22. | Peng Wei, Chen Ziqi, Yin Li, et al. Essential brain structural alterations in major depressive disorder: A voxel-wise meta-analysis on first episode, medication-naive patients. J Affect Disord, 2016, 199: 114-123. | 
				                                                        
				                                                            
				                                                                | 23. | Gong Qiyong, He Yong. Depression, neuroimaging and connectomics: a selective overview. Biol Psychiatry, 2015, 77(3): 223-235. | 
				                                                        
				                                                            
				                                                                | 24. | Zhang Huawei, Chen Ziqi, Jia Zhiyun, et al. Dysfunction of neural circuitry in depressive patients with suicidal behaviors: a review of structural and functional neuroimaging studies. Prog Neuropsychopharmacol Biol Psychiatry, 2014, 53: 61-66. | 
				                                                        
				                                                            
				                                                                | 25. | Jia Zhiyun, Wang Yuqing, Huang Xiaoqi, et al. Impaired frontothalamic circuitry in suicidal patients with depression revealed by diffusion tensor imaging at 3.0 T. J Psychiatry Neurosci, 2014, 39(3): 170-177. | 
				                                                        
				                                                            
				                                                                | 26. | Baeken C, Marinazzo D, Wu Guorong, et al. Accelerated HF-rTMS in treatment-resistant unipolar depression: Insights from subgenual anterior cingulate functional connectivity. World J Biol Psychiatry, 2014, 15(4): 286-297. | 
				                                                        
				                                                            
				                                                                | 27. | Yang Xiaoru, Kirton A, Wilkes T C, et al. Glutamate alterations associated with transcranial magnetic stimulation in youth depression a case series. J ECT, 2014, 30(3): 242-247. | 
				                                                        
				                                                            
				                                                                | 28. | 鄧佳慧, 李素霞, 董問天, 等. 難治性抑郁癥發病機制的研究進展. 中國神經精神疾病雜志, 2014, 40(2): 123-126. |