Default mode network connectivity as a predictor of post‐traumatic stress disorder symptom severity in acutely traumatized subjects
Abstract
Objective: The goal of this study was to investigate the relationship between default mode network connectivity and the severity of post‐traumatic stress disorder (PTSD) symptoms in a sample of eleven acutely traumatized subjects. Method: Participants underwent a 5.5 min resting functional magnetic resonance imaging scan. Brain areas whose activity positively correlated with that of the posterior cingulate/precuneus (PCC) were assessed. To assess the relationship between severity of PTSD symptoms and PCC connectivity, the contrast image representing areas positively correlated with the PCC was correlated with the subjects’ Clinician Administered PTSD Scale scores. Results: Results suggest that resting state connectivity of the PCC with the perigenual anterior cingulate and the right amygdala is associated with current PTSD symptoms and that correlation with the right amygdala predicts future PTSD symptoms. Conclusion: These results may contribute to the development of prognostic tools to distinguish between those who will and those who will not develop PTSD.
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Recent studies have reported alterations in subcortical and default network connectivity in individuals with PTSD.
“Recent studies have begun to investigate resting-state connectivity in individuals with PTSD and have reported alterations in subcortical31 and default network connectivity.32–35”
From Altered resting-state amygdala functional connectivity in men with posttraumatic stress disorder (2012) · cites this paper as [33]
In a more recent study with acutely traumatized individuals, PCC/precuneus-to-amygdala connectivity was found to be positively correlated with PTSD symptoms.
“however, in a more recent study with acutely traumatized individuals, they found PCC/precuneus-to-amygdala connectivity to be positively correlated with PTSD symptoms.33”
From Altered resting-state amygdala functional connectivity in men with posttraumatic stress disorder (2012) · cites this paper as [33]
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Self-citation
- Authors
- Lanius, R. A., Bluhm, R. L., Coupland, N. J., Hegadoren, K. M., Rowe, B., Théberge, J., Neufeld, R. W. J., Williamson, P. C., & Brimson, M.
- Affiliations
- Western University (CA)
- University of Alberta (CA)
- Corresponding author
- Lanius, R. A.
- Venue
- Acta Psychiatrica Scandinavica
- Publisher
- Wiley
- Published
- 2009-12-14
- Volume
- 121
- Issue
- 1
- Pages
- 33-40
- ISSN
- 0001-690X (ISSN-L)
- 1600-0447
- OpenAlex
- W1779481146
- Cited by
- 273
- References
- 43
- Citations by year
- 2026: 3 · 2025: 9 · 2024: 4 · 2023: 16 · 2022: 12 · 2021: 15 · 2020: 19 · 2019: 9 · 2018: 21 · 2017: 21 · 2016: 23 · 2015: 28 · 2014: 25 · 2013: 23 · 2012: 19
- FWCI
- 15.92
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Acta Psychiatrica Scandinavica (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Workplace Safety and Insurance Board
- Canadian Institutes of Health Research
- Topics
- Social Sciences › Psychology › Clinical Psychology › Posttraumatic Stress Disorder Research
- Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
- Health Sciences › Medicine › Epidemiology › Traumatic Brain Injury Research
- Keywords
- default mode network, post-traumatic stress disorder, PTSD symptom severity, acute trauma, resting-state functional connectivity, posterior cingulate cortex, precuneus, pregenual anterior cingulate cortex, amygdala, Clinician-Administered PTSD Scale
- MeSH terms
- Adult, Amygdala, Female, Gyrus Cinguli, Humans, Image Processing, Computer-Assisted, Functional Laterality, Life Change Events, Magnetic Resonance Imaging, Male, Neural Pathways, Probability, Prognosis, Psychiatric Status Rating Scales, Rest, Severity of Illness Index, Stress Disorders, Post-Traumatic
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