PMID- 30038557 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230926 IS - 1662-4548 (Print) IS - 1662-453X (Electronic) IS - 1662-453X (Linking) VI - 12 DP - 2018 TI - Decreased Connection Between Reward Systems and Paralimbic Cortex in Depressive Patients. PG - 462 LID - 10.3389/fnins.2018.00462 [doi] LID - 462 AB - Despite decades of research on depression, the underlying pathophysiology of depression remains incompletely understood. Emerging evidence from task-based studies suggests that the abnormal reward-related processing contribute to the development of depression. It is unclear about the function pattern of reward-related circuit during resting state in depressive patients. In present study, seed-based functional connectivity was used to evaluate the functional pattern of reward-related circuit during resting state. Selected seeds were two key nodes in reward processing, medial orbitofrontal cortex (mOFC) and nucleus accumbens (NAcc). Fifty depressive patients and 57 healthy participants were included in present study. Clinical severity of participants was assessed with Hamilton depression scale and Hamilton anxiety scale. We found that compared with healthy participants, depressive patients showed decreased connectivity of right mOFC with left temporal pole (TP_L), right insula extending to superior temporal gyrus (INS_R/STG) and increased connectivity of right mOFC with left precuneus. Similarly, decreased connectivity of left mOFC with TP_L and increased connectivity with cuneus were found in depressive patients. There is also decreased connectivity of right NAcc with bilateral temporal pole, as well as decreased connectivity of left NAcc with INS_R/STG. In addition, the functional connectivity of right nucleus accumbens with right temporal pole (TP_R) was negatively correlated with clinical severity. Our results emphasize the role of communication deficits between reward systems and paralimbic cortex in the pathophysiology of depression. FAU - Bai, Tongjian AU - Bai T AD - Department of Neurology, The First Affiliated Hospital, Anhui Medical University, Hefei, China. FAU - Zu, Meidan AU - Zu M AD - Department of Neurology, The First Affiliated Hospital, Anhui Medical University, Hefei, China. FAU - Chen, Yang AU - Chen Y AD - Anhui Mental Health Center, Hefei, China. FAU - Xie, Wen AU - Xie W AD - Anhui Mental Health Center, Hefei, China. FAU - Cai, Chunlan AU - Cai C AD - Anhui Mental Health Center, Hefei, China. FAU - Wei, Qiang AU - Wei Q AD - Department of Neurology, The First Affiliated Hospital, Anhui Medical University, Hefei, China. FAU - Ji, Gong-Jun AU - Ji GJ AD - Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, China. AD - Department of Medical Psychology, The First Affiliated Hospital, Anhui Medical University, Hefei, China. FAU - Tian, Yanghua AU - Tian Y AD - Department of Neurology, The First Affiliated Hospital, Anhui Medical University, Hefei, China. AD - Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, China. AD - Collaborative Innovation Center of Neuropsychiatric Disorders and Mental Health, Hefei, China. FAU - Wang, Kai AU - Wang K AD - Department of Neurology, The First Affiliated Hospital, Anhui Medical University, Hefei, China. AD - Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, China. AD - Department of Medical Psychology, The First Affiliated Hospital, Anhui Medical University, Hefei, China. AD - Collaborative Innovation Center of Neuropsychiatric Disorders and Mental Health, Hefei, China. LA - eng PT - Journal Article DEP - 20180709 PL - Switzerland TA - Front Neurosci JT - Frontiers in neuroscience JID - 101478481 PMC - PMC6046444 OTO - NOTNLM OT - depression OT - nucleus accumbens OT - orbitofrontal cortex OT - reward system OT - temporal pole EDAT- 2018/07/25 06:00 MHDA- 2018/07/25 06:01 PMCR- 2018/01/01 CRDT- 2018/07/25 06:00 PHST- 2018/05/15 00:00 [received] PHST- 2018/06/18 00:00 [accepted] PHST- 2018/07/25 06:00 [entrez] PHST- 2018/07/25 06:00 [pubmed] PHST- 2018/07/25 06:01 [medline] PHST- 2018/01/01 00:00 [pmc-release] AID - 10.3389/fnins.2018.00462 [doi] PST - epublish SO - Front Neurosci. 2018 Jul 9;12:462. doi: 10.3389/fnins.2018.00462. eCollection 2018.