Cited by 5Posttraumatic Stress Disorder ResearchFunctional Brain Connectivity StudiesTraumatic Brain Injury Research

Resting-state neural signatures of moral injury: associations with rumination

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Fulton, Travis M., Guelfo, Alfonsina, Elbasheir, Aziz, McDermott, Timothy J., Lee, Jiwon, Ahluwalia, Vishwadeep, Ely, Timothy D., Lathan, Emma C. +1 more·2026·Biological Psychiatry: Cognitive Neuroscience and Neuroimaging

Abstract

Background Moral injury (MI) is a condition that may emerge following a violation of an individual's moral code. MI leads to significant functional impairment in many trauma-exposed civilians, with rumination proposed as a mechanism of action. Little is known about the neuropathophysiology of different MI dimensions, including MI related to transgressions caused by the self or others. We examined links between facets of MI, resting-state amplitude of low-frequency fluctuations (ALFF), and rumination in trauma-exposed civilians. Methods Sixty adults (ages 18-56 years; 51 female) completed measures of MI (Moral Injury Exposure and Symptom Scale for Civilians [MIESS-C]), rumination (Response Styles Questionnaire), and resting-state functional magnetic resonance imaging. Voxelwise linear regression on ALFF was performed with rumination and MIESS-C-derived self-, other-, and betrayal-related MI as regressors. Results Betrayal-related MI associated with higher ALFF in the bilateral precuneus and left medial prefrontal cortex (mPFC). Other-related MI was associated with lower ALFF in the left dorsolateral PFC and insula (voxelwise p < .001, cluster false discovery rate-corrected p < .05). Rumination severity was positively associated with betrayal-related ALFF clusters in the bilateral precuneus (r = 0.32, p = .012) and left mPFC (r = 0.31, p = .017). Conclusions Results revealed distinct neural signatures of MI, with betrayal-related MI associated with greater ALFF in default mode network regions and this activation related to rumination severity. Other-related MI was linked to diminished activation in cognitive control and interoceptive network regions, which may reflect physiological withdrawal. These signatures are attractive candidate neuromodulatory targets.

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  • Emerging studies associate moral injury with altered activity in large-scale brain networks supporting self-referential thought, particularly the Default Mode Network.

    “Emerging studies associate moral injury with altered activity in large-scale brain networks supporting self-referential thought, particularly the Default Mode Network (DMN) (40, 41, 51, 52).”
  • Resting-state findings suggest heightened self-referential processing in core DMN hubs during betrayal-related moral injury, evidenced by increased amplitude of low-frequency fluctuations in medial prefrontal and precuneus regions that covary with rumination severity.

    “Resting-state findings likewise suggest heightened self-referential processing in core DMN hubs during betrayal-related moral injury, as evidenced by increased amplitude of low-frequency fluctuations in medial prefrontal and precuneus regions that covary with rumination severity (51).”

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Research works printed but not linked: 2

  1. [47]Currier JM,, Development and evaluation of the Expressions of Moral Injury Scale-Military Version. Clin Psychol Psychother, 2018. 25(3): p. 474– 488. 29282787
  2. [98]Harnett NG,, Structural inequities contribute to racial/ethnic differences in neurophysiological tone, but not threat reactivity, after trauma exposure. Mol Psychiatry, 2023. 28(7): p. 2975– 2984. 36725899 PMC10615735

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Authors
Fulton, T. M., Guelfo, A., Elbasheir, A., McDermott, T. J., Lee, J., Ahluwalia, V., Ely, T. D., Lathan, E. C., & Fani, N.
Affiliations
  • Emory University (US)
  • Georgia Institute of Technology (US)
  • Auburn University (US)
Corresponding author
Fani, Negar
Venue
Biological Psychiatry: Cognitive Neuroscience and Neuroimaging
Publisher
Elsevier BV
Published
2026-08
Volume
11
Issue
8
Pages
932-940
ISSN
2451-9022 (ISSN-L)
OpenAlex
W4413290156
Cited by
5
References
98
Citations by year
2026: 5
FWCI
5.91
Type
journal article
Language
en
Open access
Locations
  • Biological Psychiatry Cognitive Neuroscience and Neuroimaging (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (publishedVersion)
Funders
  • National Center for Complementary and Integrative Health
  • National Center for Mental Health
  • Emory Medical Care Foundation
  • NIH (MH138893)
  • Center for Advanced Brain Imaging
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
moral injury, rumination, amplitude of low-frequency fluctuation, resting-state functional connectivity, default mode network, medial prefrontal cortex, precuneus, insula, dorsolateral prefrontal cortex, interoception, cognitive control, neuromodulation targets
MeSH terms
Psychological Trauma, Rumination, Cognitive, Insular Cortex, Adolescent, Adult, Brain Mapping, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Morals, Young Adult

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