Cited by 64Posttraumatic Stress Disorder ResearchMindfulness and Compassion InterventionsPsychoanalysis and Psychopathology Research

A Pilot Study of Mindfulness-Based Exposure Therapy in OEF/OIF Combat Veterans with PTSD: Altered Medial Frontal Cortex and Amygdala Responses in Social–Emotional Processing

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King, Anthony P., Block, Stefanie R., Sripada, Rebecca K., Rauch, Sheila A. M., Porter, Katherine E., Favorite, Todd K., Giardino, Nicholas, Liberzon, Israel·2016·Frontiers in Psychiatry

Abstract

Combat-related PTSD is common among returning veterans, and is a serious and debilitating disorder. While highly effective treatments involving trauma exposure exist, difficulties with engagement and early drop may lead to sub-optimal outcomes. Mindfulness training may provide a method for increasing emotional regulation skills that may improve engagement in trauma-focused therapy. Here we examine potential neural correlates of mindfulness training and in vivo exposure (non-trauma focused) using a novel group therapy (Mindfulness-based Exposure Therapy) in Afghanistan (OEF) or Iraq (OIF) combat veterans with PTSD. OEF/OIF combat veterans with PTSD (N=23) were treated with MBET (N = 14) or a comparison group therapy (Present-centered group therapy [PCGT], N = 9). PTSD symptoms were assessed at pre- and post-therapy with Clinician Administered PTSD scale (CAPS). Functional neuroimaging (3 Tesla fMRI) before and after therapy examined responses to emotional faces (angry, fearful, and neutral faces). Patients treated with MBET had reduced PTSD symptoms (effect size d = .92) but effect was not significantly different from PCGT (d = .43). Improvement in PTSD symptoms from Pre- to Post treatment in both treatment groups was correlated with increased activity in rostral ACC, dorsal medial PFC, and left amygdala. The MBET group showed greater increases in amygdala and fusiform gyrus responses to Angry faces, as well as increased response in left medial PFC to Fearful faces. These preliminary findings provide intriguing evidence that MBET group therapy for PTSD may lead to changes in neural processing of social-emotional threat related to symptom reduction.

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  • A study among veterans revealed increased activity in the medial prefrontal cortex to fearful cues after receiving a mindfulness-based exposure therapy, which might enhance top-down regulation of the limbic system and improve hyperarousal and intrusion symptoms.

    “A study conducted among veterans revealed increased activity in the medial prefrontal cortex to fearful cues after receiving a mindfulness-based exposure therapy, which might enhance top-down regulation of the limbic system and improve hyperarousal and intrusion symptoms [52].”

    From Effects of mindfulness-based cognitive therapy for Chinese adults with PTSD symptoms: protocol for a randomised controlled trial (2024) · cites this paper as [52]

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Authors
King, A. P., Block, S. R., Sripada, R. K., Rauch, S. A. M., Porter, K. E., Favorite, T. K., Giardino, N., & Liberzon, I.
Affiliations
  • University of Michigan (US)
  • Emory University (US)
  • VA Ann Arbor Healthcare System (US)
Corresponding author
King, Anthony P.
Venue
Frontiers in Psychiatry
Published
2016-09-20
Volume
7
Pages
154-154
ISSN
1664-0640 (ISSN-L)
OpenAlex
W2526135733
Cited by
64
References
82
Citations by year
2026: 2 · 2025: 5 · 2024: 7 · 2023: 5 · 2022: 6 · 2021: 4 · 2020: 6 · 2019: 16 · 2018: 4 · 2017: 8 · 2016: 1
FWCI
12.94
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Psychiatry (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
U.S. Department of Defense (W81XWH-08-2-0208)
Topics
  • Social Sciences › Psychology › Clinical Psychology › Posttraumatic Stress Disorder Research
  • Social Sciences › Psychology › Clinical Psychology › Mindfulness and Compassion Interventions
  • Social Sciences › Psychology › Clinical Psychology › Psychoanalysis and Psychopathology Research
Keywords
combat veterans, post-traumatic stress disorder, OEF/OIF veterans, amygdala, medial prefrontal cortex, anterior cingulate cortex, fusiform gyrus, emotional face processing, group therapy, treatment engagement

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