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• W4360953611 abstract "Resting-state functional connectivity (RSFC) has been proposed as a potential indicator of repetitive negative thinking (RNT) in depression. However, identifying the specific functional process associated with RSFC alterations is challenging, and it remains unclear whether alterations in RSFC for depressed individuals are directly related to the RNT process or to individual characteristics distinct from the negative thinking process per se. To investigate the relationship between RSFC alterations and the RNT process in individuals with major depressive disorder (MDD), we compared RSFC with functional connectivity during an induced negative-thinking state (NTFC) in terms of their predictability of RNT traits and associated whole-brain connectivity patterns using connectome-based predictive modeling (CPM) and connectome-wide association (CWA) analyses. Thirty-six MDD participants and twenty-six healthy control participants underwent both resting state and induced negative thinking state fMRI scans. Both RSFC and NTFC distinguished between healthy and depressed individuals with CPM. However, trait RNT in depressed individuals, as measured by the Ruminative Responses Scale-Brooding subscale, was only predictable from NTFC, not from RSFC. CWA analysis revealed that negative thinking in depression was associated with higher functional connectivity between the default mode and executive control regions, which was not observed in RSFC. These findings suggest that RNT in depression involves an active mental process encompassing multiple brain regions across functional networks, which is not represented in the resting state. Although RSFC indicates brain functional alterations in MDD, they may not directly reflect the negative thinking process." @default.
• W4360953611 created "2023-03-26" @default.
• W4360953611 creator A5007580740 @default.
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• W4360953611 date "2023-03-25" @default.
• W4360953611 modified "2023-10-18" @default.
• W4360953611 title "Trait repetitive negative thinking in depression is associated with functional connectivity in negative thinking state rather than resting state" @default.
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• W4360953611 doi "https://doi.org/10.1101/2023.03.23.533932" @default.
• W4360953611 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36993382" @default.
• W4360953611 hasPublicationYear "2023" @default.
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