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Reduced orbitofrontal-thalamic functional connectivity related to suicidal ideation in patients with major depressive disorder
Open accessAbstract
Despite recent developments in neuroimaging, alterations of brain functional connectivity in major depressive disorder (MDD) patients with suicidal ideation are poorly understood. This study investigated specific changes of suicidal ideation in functional connectivity of MDD patients. Whole brain functional connectivity in 46 patients with MDD (23 with suicidal ideation and 23 without) and 36 age- and gender- matched healthy controls were compared using resting-state functional Magnetic Resonance Imaging (fMRI) analyzed with network-based statistics (NBS) and graph-theoretical methods. Decreased functional connectivity in a characterized sub-network was observed in patients with MDD and suicidal ideation (FDR-adjusted p < 0.05). The sub-network included the regions of the fronto-thalamic circuits in the left hemisphere. The network measures of the left superior frontal gyrus, pars orbitalis (r = −0.40, p = 0.009), left thalamus (r = −0.41, p = 0.009), and right thalamus (r = −0.51, p = −0.002) were shown, through graph theoretical analysis, to be significantly negatively correlated with severity of suicidal ideation. The reduced functional connectivity in left orbitofrontal-both thalamic regions with suicidal ideation in MDD were inversely proportional to the severity of suicidality independent from depression severity. These findings suggest problems with decision-making and information integration in MDD patients with suicidal ideation.
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“However, other studies have reported lower rs-fMRI activity and functional connectivity (85, 86, 92, 93), probably due to use of different outcome measures of rs-fMRI activity, for example, regional homogeneity, fractional amplitude of low-frequency fluctuations among studies, and heterogeneity of suicidal ideation.”
From A brain-centric model of suicidal behavior (2020) · cites this paper as [92]
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BackgroundA brain-centric model of suicidal behavior
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Metadata
- Authors
- Kim, K., Kim, S.-W., Myung, W., Han, C. E., Fava, M., Mischoulon, D., Papakostas, G. I., Seo, S. W., Cho, H., Seong, J.-K., & Jeon, H. J.
- Affiliations
- Seoul National University (KR)
- Korea University (KR)
- CHA University Bundang Medical Center (KR)
- Harvard University (US)
- Samsung Medical Center (KR)
- Samsung Biomedical Research Institute (KR)
- Corresponding author
- Seong, Joon-Kyung
- Jeon, Hong Jin
- ORCID
- Venue
- Scientific Reports
- Published
- 2017-11-17
- Volume
- 7
- Issue
- 1
- Pages
- 15772-15772
- ISSN
- 2045-2322 (ISSN-L)
- PMC
- PMC5693996
- OpenAlex
- W2768253102
- Cited by
- 107
- References
- 75
- Citations by year
- 2026: 3 · 2025: 10 · 2024: 12 · 2023: 10 · 2022: 11 · 2021: 36 · 2020: 7 · 2019: 12 · 2018: 6
- FWCI
- 3.93
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Scientific Reports (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
- Funders
- National Research Foundation
- Ministry of Science, ICT and Future Planning (2017M3C7A1048092, 2016M3C7A1947307, NRF-2017M3A9F1027323)
- National Research Foundation of Korea (NRF-2017M3A9F1027323, 2017M3A9F1027323, 2016M3C7A1947307, NRF-2016M3C7A1947307, No. NRF-2017M3A9F1027323; PI HJJ)
- Ministry of Science ICT and Future Planning
- Ministry of Education, Science and Technology (NRF-2017M3A9F1027323, 2011-0013064, 2016M3C7A1947307, NRF-2016M3C7A1947307)
- Ministry of Science and ICT, South Korea
- Samsung (SMO1161491)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
- Health Sciences › Medicine › Pharmacology (medical) › Treatment of Major Depression
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Mental Health Research Topics
- Keywords
- major depressive disorder, suicidal ideation, orbitofrontal cortex, thalamus, functional connectivity, resting-state fMRI, network-based statistics, graph theory, decision-making, information integration, suicide risk
- MeSH terms
- Adult, Major Depressive Disorder, Female, Humans, Male, Middle Aged, Nerve Net, Thalamus, Prefrontal Cortex, Suicidal Ideation
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