Altered static and dynamic functional connectivity in subthreshold bulimia nervosa: A resting-state functional magnetic resonance imaging(fMRI) study Article Swipe
Lin Luo
,
Yijun Luo
,
Ximei Chen
,
Mingyue Xiao
,
Ziming Bian
,
Xuechen Leng
,
Wei Li
,
Junjie Wang
,
Yang Yue
,
Hong Chen
·
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.21203/rs.3.rs-823131/v1
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.21203/rs.3.rs-823131/v1
Bulimia nervosa (BN) is one of the most serious eating disorders (EDs) associated with long-term significant impairment to both physical and mental quality of life. Subthreshold BN emphasize that individuals reported some extent bulimic symptoms, even those individuals who did not fully meet the diagnostic criteria endure elevated levels of impulsivity and higher likelihood of self-harm. Therefore, the current study aimed to identify potential neurobiological signatures of high-risk individuals with BN symptoms. We used functional magnetic resonance imaging (fMRI) to investigate the differences between a subthreshold BN group (sub-BN, n = 61) and a control group ( n = 51) in terms of degree centrality (DC), with the secondary analysis of the connectivity in these ROIs showing differences in both static functional connectivity (sFC) and dynamic functional connectivity (dFC) with age, sex, and framewise displacement (FD) as covariates of no interest (p < 0.05, GRF corrected). The sub-BN group exhibited significantly increased DC in the left middle frontal gyrus (MFG) and the orbital frontal gyrus, increased MFG‒superior occipital gyrus connectivity, MFG‒middle occipital gyrus connectivity and MFG‒triangular part of the inferior frontal gyrus (IFGtriang) connectivity, and decreased variability in MFG‒anterior cingulate cortex connectivity. Furthermore, in the sub-BN group, a positive correlation was observed between self-reported BN symptoms and MFG‒IFGtriang connectivity. These findings implicated in reward value processing, cognitive control, and self-referential processing in individuals with BN symptoms, which provided important insights into understanding the pathology of BN.
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- Type
- preprint
- Language
- en
- Landing Page
- https://doi.org/10.21203/rs.3.rs-823131/v1
- https://www.researchsquare.com/article/rs-823131/latest.pdf
- OA Status
- green
- Cited By
- 1
- References
- 61
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3193521908
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Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W3193521908Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.21203/rs.3.rs-823131/v1Digital Object Identifier
- Title
-
Altered static and dynamic functional connectivity in subthreshold bulimia nervosa: A resting-state functional magnetic resonance imaging(fMRI) studyWork title
- Type
-
preprintOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2021Year of publication
- Publication date
-
2021-08-24Full publication date if available
- Authors
-
Lin Luo, Yijun Luo, Ximei Chen, Mingyue Xiao, Ziming Bian, Xuechen Leng, Wei Li, Junjie Wang, Yang Yue, Hong ChenList of authors in order
- Landing page
-
https://doi.org/10.21203/rs.3.rs-823131/v1Publisher landing page
- PDF URL
-
https://www.researchsquare.com/article/rs-823131/latest.pdfDirect link to full text PDF
- Open access
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YesWhether a free full text is available
- OA status
-
greenOpen access status per OpenAlex
- OA URL
-
https://www.researchsquare.com/article/rs-823131/latest.pdfDirect OA link when available
- Concepts
-
Functional magnetic resonance imaging, Subthreshold conduction, Resting state fMRI, Bulimia nervosa, Functional connectivity, Neuroscience, Magnetic resonance imaging, Psychology, Nuclear magnetic resonance, Medicine, Psychiatry, Physics, Eating disorders, Radiology, Transistor, Voltage, Quantum mechanicsTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
1Total citation count in OpenAlex
- Citations by year (recent)
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2025: 1Per-year citation counts (last 5 years)
- References (count)
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61Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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