The Nature of Combat Stress Development During Military Operations and Psychotherapy in Extreme Situations.

ABSTRACT: The purpose of the research work is the theoretical and empirical analysis of the study of the nature of combat stress in military personnel and the assessment of psychotherapeutic methods of providing psychological assistance in extreme situations. The authors used the following methods to achieve this goal: method of analysis and synthesis, hermeneutic method, testing method, comparative method, and generalization method. The results of the research work have revealed the meaning of traumatic stress, psychological trauma, and combat mental trauma, and explained the concept of combat stress and the dynamics of its growth. The findings identified the factors of posttraumatic stress syndrome and its prevalence, tracked down the dynamics of psychoemotional disorders, and revealed the importance of military psychological selection and determination of combat readiness. The authors established the main tasks of a staff psychologist in working with military personnel, conducted an empirical study of the nature of combat stress in the military, observed main psychotherapeutic tools for the prevention of negative mental states in combat conditions, and investigated self-regulation techniques of emotional, physical, and mental health. The practical significance of the scientific work lies in the modern coverage of the phenomenon of combat stress and the classification of effective psychotherapeutic methods that will ensure the sustainable psychological preparation of the soldiers for extreme situations.

A late-life neurogenetic signature of exposure to combat stress - A monozygotic discordant twin study.

Animal models suggest that experiencing high-stress levels induces changes in amygdalar circuitry and gene expression. In humans, combat exposure has been shown to alter amygdalar responsivity and connectivity, but abnormalities have been indicated to normalize at least partially upon the termination of stress exposure. In contrast, other evidence suggests that combat exposure continues to exert influence on exposed individuals well beyond deployment and homecoming, as indicated by longitudinal psychosocial evidence from veterans, and observation of greater health decline in veterans late in life. Accordingly, the experience of combat stress early in life may affect amygdalar responsivity late in life, a possibility requiring careful consideration of the confounding effects of aging, genetic factors, and symptoms of post-traumatic stress disorder. Here, we investigated amygdalar responsivity in a unique sample of 16 male monozygotic (MZ) twin pairs in their sixties, where one but not the other sibling had been exposed to combat stress in early adulthood. Forty years after combat experience, a generally blunted amygdalar response was observed in combat-exposed veterans compared to their non-exposed twin siblings. Spatial associations between these phenotypical changes and patterns of gene expression in the brain were found for genes involved in the synaptic organization and chromatin structure. Protein-protein interactions among the set of identified genes pointed to histone modification mechanisms. We conclude that exposure to combat stress early in life continues to impact brain function beyond the termination of acute stress and appears to exert prolonged effects on amygdalar function later in life via neurogenetic mechanisms.

Reduced pre-attentive threat versus nonthreat signal discrimination in clinically healthy military personnel with recurrent combat exposure history: A preliminary event-related potential (ERP) study.

Evidence now suggests that traumatic-stress impacts brain functions even in the absence of acute-onset post-traumatic stress disorder (PTSD) symptoms. These neurophysiological changes have also been suggested to account for increased risks of PTSD symptoms later developing in the aftermath of subsequent trauma. However, surprisingly few studies have explicitly examined brain function dynamics in high-risk populations, such as combat exposed military personnel without diagnosable PTSD. To extend available research, facial expression sensitive N170 event-related potential (ERP) amplitudes were examined in a clinically healthy sample of active service military personnel with recurrent combat exposure history. Consistent with several established theories of delayed-onset PTSD vulnerability, higher N170 amplitudes to backward-masked fearful and neutral facial expressions correlated with higher levels of past combat exposure. Significantly elevated amplitudes to nonthreatening neutral facial expressions also resulted in an absence of normal threat-versus-nonthreat signal processing specificity. While a modest sample size and cross-sectional design are key limitations here, ongoing prospective-longitudinal follow-ups may shed further light on the precise aetiology and prognostic utility of these preliminary findings in the near future.

Massed cognitive processing therapy for combat-related posttraumatic stress disorder: Study design and methodology of a non-inferiority randomized controlled trial.

BACKGROUND: Posttraumatic stress disorder (PTSD) is prevalent among military personnel. Cognitive processing therapy (CPT) is identified as one of the most effective treatments for PTSD, although smaller effects have been found in military populations. High rates of dropout from treatment may contribute to reduced efficacy, and military personnel may face unique barriers to treatment completion. One method of improving efficacy may be to reduce dropout by decreasing the time required to receive a full dose of treatment. This paper describes the design and methodology of the first randomized clinical trial testing whether CPT delivered in an intensive format is non-inferior to standard delivery of CPT. METHOD: Participants are 140 active duty service members randomized to receive CPT in a 5-day combined group and individual intensive outpatient format (MCPT) or standard CPT (delivered individually twice weekly over 6 weeks). Participants are assessed at baseline, and 1 month, 4 months, and 1 year following the conclusion of the therapy. Reduction in PTSD symptomatology is the primary outcome of interest. Secondary outcomes include comorbid psychological symptoms, health, and functioning. A secondary objective is to examine predictors of treatment outcome to determine which service members benefit most from which treatment modality. CONCLUSION: If determined to be non-inferior, MCPT would provide an efficient and accessible modality of evidence-based PTSD treatment. This therapy format would improve access to care by reducing the amount of time required for treatment and improving symptoms and functioning more rapidly, thereby minimizing interference with work-related activities and disruption to the mission.

An Executive Functioning Composite Does Not Moderate the Relationship Between Combat Exposure and Posttraumatic Stress Disorder Symptom Clusters.

OBJECTIVE: Posttraumatic stress disorder (PTSD) is prevalent among U.S. combat Veterans, and associated with poor health and wellbeing. As combat experiences are likely to significantly modify self-, other-, and society-oriented cognitions and heighten risk for PTSD, examination of related cognitive processes may yield new treatment strategies. The cognitive model of PTSD suggests that persistent threat perceptions contribute to symptom worsening. Thus, cognitive processes of shifting perspectives or generating novel interpretations may be particularly relevant to lessen PTSD symptoms. This cross-sectional study examined executive functioning as a moderator to the relationship between combat exposure and PTSD symptom clusters among post-9/11 Veterans. METHOD: Data from 168 Veterans were drawn from a larger study examining post-deployment mental health and cognitive function. An executive functioning composite derived from Wisconsin Card Sorting Test Perseveration Errors, WAIS-III Similarities, Trail Making Test B, and Stroop Color-Word Inhibition scores was computed. Path analysis was used to test the moderation model. RESULTS: After accounting for age, sex, and estimated premorbid functioning, results indicated that combat exposure was associated with all symptom clusters on the PTSD Checklist-Military. Executive functioning was not significantly associated with the PTSD symptom clusters and did not moderate the relationship between combat exposure and any of the PTSD symptom clusters. CONCLUSIONS: Combat exposure is an important dimension of risk related to PTSD in Veterans that warrants regular screening. Moderation by executive functioning was not observed despite theoretical support. Future work could test methodological and sampling reasons for this finding to determine if theoretical adjustment is necessary.

VACCINE HESITANCY - FROM PARENTAL DISTRUST TO COVID-19 CONSPIRACIES.

Worldwide studies continuously confirm that vaccination is a safe and effective method of combating various infectious diseases and a key component of global public health programs. However, the vaccination status of a population is often lower than needed to achieve collective immunity. A key reason that affects lower vaccination coverage is vaccine hesitancy, identified as one of the ten greatest threats to global public health. So far, vaccine hesitancy has been most investigated in the context of parental refusal of children vaccination. The emergence of the COVID-19 pandemic and the development of its vaccines put vaccine hesitancy further in the focus of investigators as well as healthcare workers and policy makers. We have witnessed its immediate effects on public health and mortality rates as well as even more extreme ways of vaccine refusal than previously documented. The aim of this review article is to summarize relevant scientific understandings of vaccine hesitancy, including its psychological determinants, insights from parental refusal of child vaccination, medical distrust, and conspiracy theories related to the COVID-19 pandemic, as well as recommendations for public health services for combating vaccine hesitancy.

P3a amplitude to trauma-related stimuli reduced after successful trauma-focused PTSD treatment.

An elevated P3a amplitude to trauma-related stimuli is strongly associated with posttraumatic stress disorder (PTSD), yet little is known about whether this response to trauma-related stimuli is affected by treatment that decreases PTSD symptoms. As an analysis of secondary outcome measures from a randomized controlled trial, we investigated the latency and amplitude changes of the P3a in responses in a three-condition oddball visual task that included trauma-related (combat scenes) and trauma-unrelated (threatening animals) distractors. Fifty-five U.S. veterans diagnosed with combat-related PTSD were randomized to receive either active or sham repetitive transcranial magnetic stimulation (rTMS). All received cognitive processing therapy, CPT+A, which requires a written account of the index trauma. They were tested before and 6 months after protocol completion. P3a amplitude and response time decreases were driven largely by the changes in the responses to the trauma-related stimuli, and this decrease correlated to the decrease in PTSD symptoms. The amplitude changes were greater in those who received rTMS + CPT than in those who received sham rTMS + CPT, suggesting that rTMS plays beneficial role in reducing arousal and threat bias, which may allow for more effective engagement in trauma-focused PTSD treatment.

Inpatient residential treatment program for combat-related posttraumatic stress disorder (PTSD): Results from the 2020 Artsakh (Nagorno-Karabakh) War.

Inpatient residential treatment programs to evaluate active military service members for potential return to service or discharge are considered an integral component of rehabilitation for trauma related conditions. This retrospective study was conducted on combat-exposed military service members who were admitted to an inpatient residential treatment program for evaluation of fitness to serve and treatment of trauma related conditions. The PTSD Checklist for DSM-5 (PCL-5) was used to screen for PTSD, determine symptom severity, and monitor symptom change. At the time of admission, 54.3% of the service members met the provisional PTSD diagnosis, whereas at the time of discharge, 16.28% of the service members met the provisional diagnostic criteria. The most common symptoms rated moderately or higher were sleep troubles, followed by super alert, disturbing memories, feeling upset, disturbing dreams, physical reactions, avoiding memories, and negative feelings. Paired t-test results comparing the PCL-5 five Subscales and Total Score at the time of admission and discharge showed significant reductions. The five symptoms that improved the least were sleep troubles, feeling upset, avoiding memories, difficulty concentrating, and trouble remembering. The successful creation and implementation of an Armenian version of the PCL-5 was realized and, when put to the test, aided in screening, diagnosing, and monitoring PTSD symptoms among Armenian Army Service members. The results suggest that PTSD symptoms in an inpatient residential treatment program decreased over time. The symptoms that bothered the service members at most during the time of admission, however, improved the least at the time of discharge.

Limitations of benefit finding as a coping mechanism for combat-related PTSD symptoms.

Benefit finding has been identified as a buffer of the combat exposure-PTSD symptom link in soldiers. However, benefit finding may have a limited buffering capacity on the combat-PTSD symptom link over the course of a soldier's post-deployment recovery period. In the present study, soldiers returning from Operation Iraqi Freedom (OIF) were surveyed at two different time periods post-deployment: Time 1 was 4 months post-deployment (n = 1,510), and Time 2 was at 9 months post-deployment (n = 783). The surveys assessed benefit finding, PTSD symptoms, and combat exposure. Benefit finding was a successful buffer of the cross-sectional relationship between combat exposure and PTSD reexperiencing symptoms at Time 1, but not at Time 2. In addition, the benefit finding by combat interaction at time 1 revealed that greater benefit finding was associated with higher symptoms under high combat exposure at Time 2 after controlling for PTSD arousal symptoms at Time 1. The results of the present study indicate that benefit finding may have a buffering capacity in the immediate months following a combat deployment, but also indicates that more time than is allotted during the post-deployment adjustment period is needed to enable recovery from PTSD. Theoretical implications are discussed.

Exposure to combat experiences: PTSD, somatization and aggression amongst combat and non-combat veterans.

To this date, the prevalence of posttraumatic stress disorder (PTSD) and associated psychological symptom profiles amongst non-combatant community-based veterans in Israel has not been studied. Data were analysed from a web-based survey of veterans via a market research platform during September 2021 and included 522 non-combat (e.g. intelligence, office-based or education corps) veterans and 534 combat (e.g. front-line infantry) veterans. The survey assessed PTSD, depression, anxiety and somatic symptoms in addition to the prevalence of self-reported aggression. A two-way multivariate analysis of covariance indicated that higher PTSD and somatic symptoms were prevalent for those exposed to combat experiences even when not in a combatant role. A logistic regression indicated that of those who did not self-define as aggressive prior to service, those exposed to combat were three times more likely to be aggressive following their service than veterans not exposed to combat. This effect was not demonstrated for combat soldiers compared to non-combat soldiers. Results indicate that mental health outreach would be better targeted towards those who have been exposed to combat-type experiences during their service even in non-combat units. The current study highlights the effect of combat exposure on secondary PTSD symptoms; aggression and somatization.

Threat Appraisal, Recovery Operations, and PTSD Symptoms Among US Air Force Rescue Personnel.

BACKGROUND: Research among military personnel and veterans indicates that subjective appraisal of warzone stressors explains the relation of combat exposure to posttraumatic stress disorder (PTSD), but not the relation of exposure to injury and death to PTSD. Studies have primarily been limited to conventional forces using aggregate measures of warzone stressor exposure. Threat appraisal may play a different role in the emergence of PTSD among military personnel for whom dangerous deployment experiences are more closely associated with exposure to injury and death, such as US Air Force Pararescuemen and Combat Rescue officers. MATERIALS AND METHODS: In a sample of 207 rescue personnel, correlations among various types of warzone stressor exposure, threat appraisal, and postdeployment PTSD symptoms were examined. RESULTS: The relative strongest correlates of threat appraisal were stressors related to injury, death, and human remains. Although exposure to these stressors was also correlated with PTSD symptom severity, partial correlations of stressor exposure and PTSD symptoms were no longer significant when adjusting for threat appraisal. CONCLUSION: Results support the contributing role of threat appraisal to PTSD among military personnel whose primary duties entail exposure to injury and death under hostile and dangerous conditions.

Emotion regulation and combat severity differentiates PTSD diagnostic status among veterans.

OBJECTIVE: This study examined whether posttraumatic stress disorder (PTSD) diagnostic groups in veterans were differentiated by combat severity and specific avoidance and approach-related emotion regulation (ER) strategies. METHOD: In a cohort study, 725 participants (Mage = 58.39, SD = 11.27, 94.5% male, 58.2% White) recruited from VHA facilities completed the Clinician Administered PTSD Scale (CAPS), Combat Exposure Scale (CES), and Emotion Regulation Questionnaire (ERQ). Participants were categorized into three PTSD groups: Current, Remitted, and Never. RESULTS: Multinomial logistic regressions adjusting for age, sex, and race, showed combat severity significantly differentiated all groups from each other (ps < .001). Specifically, combat severity was significantly associated with increased odds of Current PTSD versus Remitted (OR: 1.02, 95% CI [1.01, 1.05]) and Never PTSD (OR: 1.14, [1.12, 1.17]) and odds of Remitted compared with Never PTSD (OR: 1.11, [1.09, 1.14]). Suppression, but not reappraisal, was significantly associated with increased odds of Current PTSD compared with Remitted (OR: 1.15, [1.06, 1.24]) and Never PTSD (OR: 1.14, [1.06, 1.22]; ps < .001). Lower reappraisal was only significantly associated with the likelihood of Remitted PTSD compared with Never PTSD (OR: 0.93, [0.88, 0.99], p = .03). CONCLUSIONS: Increasing levels of combat severity differentiated veterans with current, remitted, and no history of PTSD, suggesting screening for severity of combat may be helpful. Greater habitual suppression distinguished current versus non-current PTSD status, whereas only less reappraisal distinguished non-current groups from each other. Lower suppression may be an important treatment target for veterans with moderate and high combat severity. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Is avoidance the only issue? A case study of "self-triggering" in combat-related posttraumatic stress disorder.

OBJECTIVE: We explore the emerging concept of "self-triggering" through a case illustration of a Vietnam veteran with posttraumatic stress disorder (PTSD) who engaged in self-triggering for 50 years after his index trauma. He reduced the frequency of self-triggering upon receiving a combination of cognitive processing therapy and behavioral exposure treatment. METHOD: This article provides a brief overview of the emerging literature on self-triggering, proposes theory for its function, and discusses how self-triggering affected the treatment of this veteran's chronic PTSD. RESULTS: Through clinical intervention that focused on what to approach (i.e., real-world experiences) and what to avoid (i.e., online triggering videos), the veteran stopped one kind of self-triggering but not another. The veteran attributed much of his positive behavior change to desire to honor the life of a young boy whose likely death he witnessed in Vietnam. CONCLUSIONS: Though people with PTSD often go to great lengths to avoid reminders of their trauma, there is a subset who seek reminders that trigger distressing reexperiencing symptoms. Such puzzling self-triggering behavior in those with PTSD is seldom studied and poorly understood. The details of this veteran's experience present a compelling case for self-triggering as an attempt to search for meaning in one's trauma, gain control of symptoms, and punish oneself. Implications for research and clinical practice are discussed. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Post-traumatic growth amongst UK armed forces personnel who were deployed to Afghanistan and the role of combat injury, mental health and pain: the ADVANCE cohort study.

BACKGROUND: Post-traumatic growth (PTG) is a positive psychological consequence of trauma. The aims of this study were to investigate whether combat injury was associated with deployment-related PTG in a cohort of UK military personnel who were deployed to Afghanistan, and whether post-traumatic stress disorder (PTSD), depression and pain mediate this relationship. METHODS: 521 physically injured (n = 138 amputation; n = 383 non-amputation injury) and 514 frequency-matched uninjured personnel completed questionnaires including the deployment-related Post-Traumatic Growth Inventory (DPTGI). DPTGI scores were categorised into tertiles of: no/low (score 0-20), moderate (score 21-34) or a large (35-63) degree of deployment-related PTG. Analysis was completed using generalised structural equation modelling. RESULTS: A large degree of PTG was reported by 28.0% (n = 140) of the uninjured group, 36.9% (n = 196) of the overall injured group, 45.4% (n = 62) of amputee and 34.1% (n = 134) of the non-amputee injured subgroups. Combat injury had a direct effect on reporting a large degree of PTG [Relative risk ratio (RRR) 1.59 (95% confidence interval (CI) 1.17-2.17)] compared to sustaining no injury. Amputation injuries also had a significant direct effect [RRR 2.18 (95% CI 1.24-3.75)], but non-amputation injuries did not [RRR 1.35 (95% CI 0.92-1.93)]. PTSD, depression and pain partially mediate this relationship, though mediation differed depending on the injury subtype. PTSD had a curvilinear relationship with PTG, whilst depression had a negative association and pain had a positive association. CONCLUSIONS: Combat injury, in particular injury resulting in traumatic amputation, is associated with reporting a large degree of PTG.

Predictors of Chronic Combat-Related Post-Traumatic Stress Disorder Group Psychotherapy Favorable Outcomes; A Prospective Cohort Study in Croatia.

BACKGROUND: Combat-related chronic post-traumatic stress disorder (PTSD) is a therapeutically resistant disorder of the fluctuating course. The success of a group psychotherapy is partial. The aim of this paper is to determine baseline characteristics of veterans for whom a group psychotherapy will be the effective psychotherapeutic treatment. SUBJECTS AND METHODS: We performed this prospective cohort study in two geographically distant institutions: Regional Psychotrauma Center at the Psychiatric Clinic Split, and the Daily Hospital of the Psychiatric Hospital "Sveti Ivan" Zagreb, Croatia. We selected a consecutive sample of 86 veterans with combat-related chronic PTSD admitted to the group psychotherapy during 2009-2012. The primary outcome was ≥5% improvement in PTSD symptoms severity measured by Mississippi Scale for Combat-Related PTSD and adjusted for the baseline Mississippi scale score. Predictors were participants' 17 baseline sociodemographic and clinical characteristics and psychological features like personality traits, stress-coping mechanisms, and depression. RESULTS: We identified two patients' segments with significantly higher likelihood for the favorable treatment outcome. The first one were patients with the low score (≤8) on the phobia scale and high score (≥7) on the hysterical personality scale. In this segment 100% of patients experienced a favorable treatment outcome. The second one were the patiens with a higher score (>8) on the phobia scale, the low score (≤12) on the free-floating anxiety scale and the high score ≥8) on the obsession scale. In this segment, 64% experienced the favorable treatment outcome. CONCLUSION: The favorable outcome of the group psychotherapy of PTSD symptoms severity in patients with combat-related chronic PTSD can be predicted before the start of the treatment. The favorable outcome should be expected in patients with the low phobia and pronounced hysteria personality traits, or in patients with higher phobia, but with low free-floating anxiety and low obsession.

Quantitative changes in mental health measures with 3MDR treatment for Canadian military members and veterans.

OBJECTIVE: Military members and veterans are at elevated risk of treatment-resistant posttraumatic stress disorder (TR-PTSD) due to higher rates of exposure to potentially traumatic events during the course of duty. Knowledge of TR-PTSD is limited, and specific protocols or evidence-based TR-PTSD therapies are lacking. Multimodal motion-assisted memory desensitization and reconsolidation (3MDR) therapy is an emerging intervention for combat-related TR-PTSD. The purpose of this study was to preliminarily assess the effectiveness of 3MDR in addressing TR-PTSD in Canadian military members and veterans. METHODS: This study is a longitudinal mixed-methods clinical trial. English-speaking military members and veterans aged 18-60 with TR-PTSD were recruited to participate. The intervention consisted of six sessions of 3MDR therapy. Quantitative data were collected pretreatment, posttreatment, and longitudinally at 1, 3, and 6 months after completion of 3MDR. RESULTS: Results from the first 11 participants to complete the 3MDR protocol exhibited statistically significant improvement (surviving multiple comparison correction) in clinically administered and self-reported scores for PTSD (CAPS-5 and PCL-5), moral injury (MISS-M-SF), depression (PHQ-9), anxiety (GAD-7), emotional regulation (DERS-18), and resilience (CD-RS-25). CONCLUSION: The preliminary and exploratory results from this clinical trial support the growing body of literature illustrating 3MDR as an effective treatment for military-related TR-PTSD. These results are notable given participants' previous lack of success with frontline psychotherapeutic and pharmacological interventions. Given that there are currently very limited treatment options for TR-PTSD, 3MDR could prove to be a valuable treatment option for military members and veterans with TR-PTSD.

The effect of war injury and combat deployment on military wives' mental health symptoms.

BACKGROUND: Although much has been learned about the physical and psychological impacts of deployment and combat injury on military service members, less is known about the effects of these experiences on military spouses. METHODS: The present study examined self-reported mental health symptoms (using the Brief Symptom Inventory [BSI]-18 and the posttraumatic stress disorder [PTSD] Checklist [PCL-C]) in wives of service members who were combat-injured (CI; n = 60); noninjured with cumulative deployment longer than 11 months (NI-High; n = 51); and noninjured with cumulativel deployment less than 11 months (NI-Low; n = 53). RESULTS: 36.7% and 11.7% of CI wives endorsed above threshold symptoms on the PCL-C and overall BSI-18, respectively. Multivariate linear regressions revealed that being a CI wife was associated with higher PCL-C, overall BSI-18, and BSI-18 anxiety subscale scores compared to NI-Low wives in models adjusted for individual and family characteristics, as well as prior trauma and childhood adversities. Compared with the NI-High group, the CI group was associated with higher overall BSI-18 scores. CONCLUSIONS: While CI wives evidenced fewer mental symptoms than expected, these findings suggest a negative impact of service member's combat injury on wives' mental health above that attributable to deployment, highlighting the need for trauma-informed interventions designed to support the needs of military wives affected by combat injury.

Acute Stress Reaction in Combat: Emerging Evidence and Peer-Based Interventions.

PURPOSE OF REVIEW: This paper highlights the topic of combat-related acute stress reactions (ASRs) in service members. Specifically, we contrast ASRs with related psychiatric conditions, report the estimated prevalence of ASRs for soldiers deployed to combat, and discuss how team members can effectively respond to these reactions. RECENT FINDINGS: Although not regarded as a clinical disorder, ASRs can have a significant impact on high-risk occupations like the military in which impaired functioning can imperil team members and others. Based on self-report, 17.2% of soldiers who have deployed to combat report having experienced a possible ASR. To our knowledge, this is the first such prevalence estimate. The prevalence of ASRs underscores the need for improved prevention, management, and recovery strategies. Peer-based intervention protocols such as iCOVER may provide a useful starting point to address ASRs in team members.