Accepted

Pain catastrophizing is prominent in chronic pain conditions such as fibromyalgia and has been proposed to contribute to the development of pain widespreadness. However, the brain mechanisms responsible for this association are unknown. We hypothesized that increased resting salience network (SLN) connectivity to nodes of the default mode network (DMN), representing previously reported pain-linked cross-network enmeshment, would be associated with increased pain catastrophizing and widespreadness across body sites. We applied functional magnetic resonance imaging (fMRI) and digital pain drawings (free-hand drawing over a body outline, analyzed using conventional software for multivoxel fMRI analysis) to investigate precisely quantified measures of pain widespreadness and the associations between pain catastrophizing (Pain Catastrophizing Scale), resting brain network connectivity (Dual-regression Independent Component Analysis, 6-minute multiband accelerated fMRI), and pain widespreadness in fibromyalgia patients (N = 79). Fibromyalgia patients reported pain in multiple body areas (most frequently the spinal region, from the lower back to the neck), with moderately high pain widespreadness (mean ± SD: 26.1 ± 24.1% of total body area), and high pain catastrophizing scale scores (27.0 ± 21.9, scale range: 0-52), which were positively correlated (r = 0.26, P = 0.02). A whole-brain regression analysis focused on SLN connectivity indicated that pain widespreadness was also positively associated with SLN connectivity to the posterior cingulate cortex, a key node of the DMN. Moreover, we found that SLN-posterior cingulate cortex connectivity statistically mediated the association between pain catastrophizing and pain widespreadness (P = 0.01). In conclusion, we identified a putative brain mechanism underpinning the association between greater pain catastrophizing and a larger spatial extent of body pain in fibromyalgia, implicating a role for brain SLN-DMN cross-network enmeshment in mediating this association.

The Mind-Body Medicine (MBM) program at the Naval Medical Center San Diego, created in collaboration with the Benson-Henry Institute for Mind Body Medicine and the Home Base Program at Massachusetts General Hospital, is a 7-week program designed to facilitate stress management habits into patient treatment plans. The aim of this study is to test the feasibility and acceptability of a mind-body program for service members and veterans. Participants (N = 239) were primarily active duty service members of the U.S. Navy and Marine Corps reporting significant perceived stress (Stress Resiliency (SR) group; n = 124), or meeting criteria for chronic pain (Pain Management (PM) group; n = 115). Participants completed measures at preprogram and post-program assessing for perceived stress, pain, functional impairment, quality of life, and psychological and somatic symptoms. Changes in self-reported psychological symptoms and knowledge and practice of mind-body principles were examined. Participants across groups had significant improvement in most outcomes (perceived stress, response to stressful experience, functional impairment, sleep disturbance, depression, PTSD, and anxiety symptoms; and each quality of life domain aside from social relationships), with p values < .0017 (Bonferroni corrected level of significance). The SR group demonstrated significant improvements in primary outcomes of perceived stress and response to stressful experience, and the PM group demonstrated significant improvement in pain severity, but not perceived stress. Significant change was observed in knowledge and practice of mind-body medicine principles, and high satisfaction was reported. Results suggest that a mind-body program may improve physical and psychological functioning for service members, including those facing significant perceived stress and chronic pain. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

: There is a strong association between chronic pain and unhelpful pain cognitions. Educating patients on pain neuroscience has been shown to reduce pain catastrophization, kinesiophobia, and self-perceived disability. This study investigated whether a group-based pain neuroscience education (PNE) session influenced pain-related outcomes, and whether readiness to change moderated these outcomes. : In a pragmatic pre-post-intervention study using a convenience sample, adults with chronic pain participated in one, 90-120 minute PNE session. Pain-related outcomes (i.e. pain catastrophization, kinesiophobia, disability, and pain neuroscience knowledge) and the Pain Stage of Change Questionnaire (PSOCQ) were assessed at baseline and immediately post-intervention. Paired t-tests evaluated pre-post changes in outcomes, and linear regression examined the impact of PSOCQ score changes on PNE-induced changes in clinical outcomes. : Sixty-five participants were recruited. All outcomes showed positive intervention effects ( < .01). Relationships between changes in PSOCQ subscale scores and change in post-intervention pain-related outcomes were found; 'Pre-Contemplation' was positively associated with pain catastrophization ( = .01), and 'Action' was negatively associated with kinesiophobia ( = .03). : Consistent with previous research, there were improvements in outcomes associated with chronic pain after PNE. Some of these improvements were predicted by changes in PSOCQ scores, however, these findings are preliminary and require further investigation using controlled research designs.

Acceptance and commitment therapy (ACT), based in the psychological flexibility model, may benefit people with chronic abdominal pain. The current study preliminarily investigates associations between psychological flexibility processes and daily general, social and emotional functioning in chronic abdominal pain.

Adverse childhood experiences (ACEs) are commonly reported by individuals with chronic pain. However, little is known about how ACE exposure influences treatment outcomes. The goal of the current study was to evaluate group and treatment-related differences among adults with varying levels of ACE exposure participating in a pain rehabilitation treatment program.