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To further understand the common and distinct DMN alterations across disorders, we capitalized on the probability tracing method and graph theory to analyze the role of DMN across three major mental disorders. A total of 399 participants (156 schizophrenia [SCZ], 90 bipolar disorder [BP], 58 major depression disorder [MDD], and 95 healthy controls [HC]) completed magnetic resonance imaging (MRI)-scanning, clinical, and cognitive assessment. The MRI preprocessing of diffusion-tensor-imaging was conducted in FMRIB Software Library and probabilistic fiber tracking was applied by PANDA. This study had three main findings. First, patient groups showed significantly lower cluster coefficient in whole-brain compared with HC. SCZ showed significantly longer characteristic path compared with HC. Second, patient groups showed inter-group specificity in abnormalities of DMN connections. Third, SCZ was sensitive to left_medial_superior_frontal_gyrus (L_SFGmed)-right_anterior_cingulate_gyrus (R_ACG) connection relating to positive symptoms; left_ACG-right_ACG connection was the mania\u2019s antagonistic factor in BP. This trans-diagnostic study found disorder-specific structural abnormalities in the fiber connection of R_SFGmed-L_SFGmed-R_ACG_L_ACG within DMN, where SCZ showed more disconnections compared with other disorders. And these connections are diagnosis-specifically correlated to phenotypes. The current study may provide further evidence of shared and distinct endo-phenotypes across psychopathology.<\/jats:p>","DOI":"10.1093\/cercor\/bhab405","type":"journal-article","created":{"date-parts":[[2021,10,16]],"date-time":"2021-10-16T13:53:01Z","timestamp":1634392381000},"page":"3127-3136","source":"Crossref","is-referenced-by-count":25,"title":["Abnormal network properties and fiber connections of DMN across major mental disorders: a probability tracing and graph theory study"],"prefix":"10.1093","volume":"32","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4265-5251","authenticated-orcid":false,"given":"Yunzhi","family":"Pan","sequence":"first","affiliation":[{"name":"Second Xiangya Hospital , National Clinical Research Center for Mental Disorders, and Department of Psychiatry, Changsha, Hunan, China"},{"name":"Robarts Research Institution , University of Western Ontario, London, Ontario, 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