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"Stanley, Elizabeth A."
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Minds “At Attention”: Mindfulness Training Curbs Attentional Lapses in Military Cohorts
We investigated the impact of mindfulness training (MT) on attentional performance lapses associated with task-unrelated thought (i.e., mind wandering). Periods of persistent and intensive demands may compromise attention and increase off-task thinking. Here, we investigated if MT may mitigate these deleterious effects and promote cognitive resilience in military cohorts enduring a high-demand interval of predeployment training. To better understand which aspects of MT programs are most beneficial, three military cohorts were examined. Two of the three groups were provided MT. One group received an 8-hour, 8-week variant of Mindfulness-based Mind Fitness Training (MMFT) emphasizing engagement in training exercises (training-focused MT, n = 40), a second group received a didactic-focused variant emphasizing content regarding stress and resilience (didactic-focused MT, n = 40), and the third group served as a no-training control (NTC, n = 24). Sustained Attention to Response Task (SART) performance was indexed in all military groups and a no-training civilian group (CIV, n = 45) before (T1) and after (T2) the MT course period. Attentional performance (measured by A', a sensitivity index) was lower in NTC vs. CIV at T2, suggesting that performance suffers after enduring a high-demand predeployment interval relative to a similar time period of civilian life. Yet, there were significantly fewer performance lapses in the military cohorts receiving MT relative to NTC, with training-focused MT outperforming didactic-focused MT at T2. From T1 to T2, A' degraded in NTC and didactic-focused MT but remained stable in training-focused MT and CIV. In sum, while protracted periods of high-demand military training may increase attentional performance lapses, practice-focused MT programs akin to training-focused MT may bolster attentional performance more than didactic-focused programs. As such, training-focused MT programs should be further examined in cohorts experiencing protracted high-demand intervals.
Journal Article
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Mindfulness-based training attenuates insula response to an aversive interoceptive challenge
Neuroimaging studies of mindfulness training (MT) modulate anterior cingulate cortex (ACC) and insula among other brain regions, which are important for attentional control, emotional regulation and interoception. Inspiratory breathing load (IBL) is an experimental approach to examine how an individual responds to an aversive stimulus. Military personnel are at increased risk for cognitive, emotional and physiological compromise as a consequence of prolonged exposure to stressful environments and, therefore, may benefit from MT. This study investigated whether MT modulates neural processing of interoceptive distress in infantry marines scheduled to undergo pre-deployment training and deployment to Afghanistan. Marines were divided into two groups: individuals who received training as usual (control) and individuals who received an additional 20-h mindfulness-based mind fitness training (MMFT). All subjects completed an IBL task during functional magnetic resonance imaging at baseline and post-MMFT training. Marines who underwent MMFT relative to controls demonstrated a significant attenuation of right anterior insula and ACC during the experience of loaded breathing. These results support the hypothesis that MT changes brain activation such that individuals process more effectively an aversive interoceptive stimulus. Thus, MT may serve as a training technique to modulate the brain’s response to negative interoceptive stimuli, which may help to improve resilience.
Journal Article
Ending the Korean War: The Role of Domestic Coalition Shifts in Overcoming Obstacles to Peace
Bargaining models of war suggest that war ends after two sides develop an overlapping bargaining space. Domestic mechanisms—domestic governing coalitions, a state's elite foreign policy decisionmaking group, and their role in ending interstate war—are critical in explaining how, when, and why that bargaining space develops. Through preference, information, and entrapment obstacles, wars can become \"stuck\" and require a change in expectations to produce a war-terminating bargaining space. A major source of such change is a shift in belligerents' governing coalitions. Events in the United States, China, and the Soviet Union during the Korean War illustrate the dynamics of these obstacles and the need for domestic coalition shifts in overcoming them before the conflict could be brought to an end.
Journal Article
Practice Is Protective: Mindfulness Training Promotes Cognitive Resilience in High-Stress Cohorts
Attention is critical for successful performance in demanding real-world situations. Yet, protracted periods of high demand may compromise attention and increase off-task thinking. Herein, we investigate if mindfulness training (MT) may promote cognitive resilience by curbing attentional lapses in high-stress cohorts. Two military cohorts were recruited during their high-stress predeployment interval. Mindfulness-based Mind Fitness Training (MMFT)
®
was provided to one group (MT,
N
= 31) but not the other group (military control group, MC,
N
= 24). The MT group attended an 8-week MMFT
®
course and logged the amount of out-of-class time spent practicing formal MT exercises. The Sustained Attention to Response Task (SART) was used to index objective attentional performance and subjective ratings of mind wandering before (T1) and after (T2) the MT course. In the MT group, changes in SART measures correlated with the amount of time spent engaging in MT homework practice, with greater objective performance benefits (indexed by
A′
, a sensitivity measure), and reduced subjective reports of mind wandering over time in those who engaged in high practice vs. low practice. Performance measures in the low practice and MC groups significantly declined from T1 to T2. In contrast, the high practice group remained stable over time. These results suggest that engaging in sufficient MT practice may protect against attentional lapses over high-demand intervals. Based on these results, we argue that MT programs emphasizing greater engagement in mindfulness practice should be further investigated as a route by which to build cognitive resilience in high-stress cohorts.
Journal Article
Difficulties With Emotion Regulation in the Contemporary U.S. Armed Forces
The ability to regulate negative emotions is especially necessary for service members in the contemporary U.S. armed forces, since they routinely face situations that elicit negative emotions while executing their professional roles. Yet difficulties with regulating emotions, which are associated with stress and mood disorders, suicidality, and impairments in work performance, remain prevalent across this group. This article surveys research in five domains—recruitment and selection effects, military cultural pressures and coping strategies, training, common chronic stressors, and the contemporary operational environment—to highlight structural contributors to the heavy stress loads that U.S. service members often bear, which may contribute to their difficulty with emotion regulation (ER). It concludes with several recommendations that the military could implement to mitigate service members’ stress loads and facilitate ER. Enhancing their ER skills may offer a longterm strategy to improve their resilience and performance.
Journal Article
War Duration and the Micro-Dynamics of Decision Making under Stress
Previous empirical research has demonstrated that war has negative duration dependence: the longer a war has already lasted, the harder it is to end. Many arguments have been advanced to explain this, including bargaining or commitment problems, domestic politics, entrapment dynamics, sunk costs, and cognitive and emotional biases. Drawing on recent empirical and experimental research in neuroscience, psychology, and stress physiology, this article will examine the micro-dynamics of human decision making in high-stress situations (such as prosecuting and negotiating to end a war) in order to connect these many approaches. In high-stress environments, cognitive functioning usually depletes over time, decreasing top-down regulation of emotions and stress arousal, and thereby increasing subcortical influence on decision making. Depleted cognitive functioning also decreases tolerance of uncertainty and ambiguity, two states endemic to the war termination process, which further exacerbates subcortical influence on decisions. As a result, actors’ ability to absorb and accurately assess information and to make effective decisions may be undermined. This article also connects these micro-dynamics of decision making under stress to some of the arguments previously advanced to explain war’s negative duration dependence.
Journal Article
Emotion Dysregulation and Military Suicidality Since 2001: A Review of the Literature
Policy makers and researchers have worked to explain the perplexing rise in U.S. military suicides since 2001, with little progress in explaining this widespread phenomenon. This article synthesizes several literatures to highlight the role of emotion dysregulation in military suicidality. After considering advances in suicidal ideation-to-action frameworks and the factors that contribute to the prevalence of emotion dysregulation in the modern U.S. military, it explores how military service provides for two distinct circumstances in which such emotion dysregulation may facilitate the transition from suicidal ideation to behavior. The first circumstance is high distress tolerance, wherein the effects of disproportionately high rates of adverse childhood experiences (ACEs) among service-members may increase vulnerability to suicidal behavior. The second circumstance is preexisting acquired capability with lethal means paired with executive functioning degradation. Empirically associated with military environments, such degradation may undermine the effectiveness of top-down emotion regulation strategies—thereby allowing acquired familiarity with lethal means to assist the transition from suicidal ideation to action. Thus, emotion dysregulation's unique relationship with the U.S. military may help to explain the powerful correlation between service and suicide since 2001—suggesting that enhancing emotion regulation skills may present a key leverage point for effectively addressing the issue.
Journal Article
Comparing Mindfulness and Positivity Trainings in High-Demand Cohorts
Attention and working memory are at risk of degradation over intensive intervals in groups engaged in highly demanding jobs. Accordingly, there is great interest in identifying training regimes to promote cognitive resilience in such populations. Herein, US Army Soldiers were assigned to either an 8-week, 16-h mindfulness training (MT) program (n = 40) or to a well-matched active comparison program involving positivity training (PT, n = 40), during an intensive interval of predeployment training. Working memory (WM) and sustained attention task performance, as well as self-reported positive and negative trait affect, were assessed at study onset (T1) and at the end of the MT/PT program interval (T2). Positive and negative trait affect did not change over time or differ across training groups. Yet, overall decline in cognitive task performance was observed from T1 to T2. Importantly, the MT group demonstrated significantly less decline in cognitive task performance relative to the PT group, suggesting better protection from cognitive degradation over time. Based on these results, we argue that MT should be further explored as a cognitive resilience-building tool in high-demand cohorts.
Journal Article