Journal of behavioral medicine
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Randomized Controlled Trial
Anger regulation style, anger arousal and acute pain sensitivity: evidence for an endogenous opioid "triggering" model.
Findings suggest that greater tendency to express anger is associated with greater sensitivity to acute pain via endogenous opioid system dysfunction, but past studies have not addressed the role of anger arousal. We used a 2 × 2 factorial design with Drug Condition (placebo or opioid blockade with naltrexone) crossed with Task Order (anger-induction/pain-induction or pain-induction/anger-induction), and with continuous Anger-out Subscale scores. ⋯ Namely, when angered prior to pain, high anger-out participants appeared to exhibit low pain intensity under placebo that was not shown by high anger-out participants who received naltrexone. Results hint that people with a pronounced tendency to express anger may suffer from inadequate opioid function under simple pain-induction, but may experience analgesic benefit to some extent from the opioid triggering properties of strong anger arousal.
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Pain acceptance contributes significantly to the effectiveness of pain treatment outcomes. Nevertheless, little research has been conducted to examine whether a decrease in acceptance contributes to a deterioration in post treatment functioning. The aim of this study was to assess the role of pain acceptance in relation to process and outcome variables in the six-months following the conclusion of a pain program. ⋯ Deterioration in acceptance of pain was significantly associated with deterioration in depression and disability, even when catastrophizing cognitions and kinesiophobia were accounted for. Decrease in acceptance was the strongest predictor of reliable deterioration in depression and disability. Results indicated the CPAQ-8 has utility as a measure for monitoring patient functioning post-treatment.
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Observational learning may contribute to development and maintenance of pain-related beliefs and behaviors. The current study examined whether observation of video primes could impact appraisals of potential back stressing activities, and whether this relationship was moderated by individual differences in pain-related fear. Participants viewed a video prime in which back-stressing activity was associated with pain and injury. ⋯ Specifically, following prime exposure, high fear participants showed elevated pain appraisals of activity images whereas low fear participants did not. High fear participants appraised the PHODA-M images as significantly more harmful regardless of prime exposure. The findings highlight individual moderators of observational learning in the context of pain.
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Randomized Controlled Trial
Effects of guided imagery on biobehavioral factors in women with fibromyalgia.
Women diagnosed with fibromyalgia (N = 72) participated in a 10-week randomized trial to examine the effectiveness of guided imagery on self-efficacy, perceived stress, and selected biobehavioral factors (FMS symptoms; immune biomarkers). Participants in both guided imagery and usual care control conditions completed measures and donated 3 cc of blood at baseline, 6- and 10-weeks. ⋯ There were no statistically significant changes in biomarker levels, although total group C-reactive protein was elevated at baseline (4.7 mg/L), indicating an inflammatory process. Subsequent studies should be undertaken to more fully elucidate the biobehavioral aspects of nonpharmacological intervention effectiveness.
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Randomized Controlled Trial
The effects of coping style on virtual reality enhanced videogame distraction in children undergoing cold pressor pain.
This study sought to evaluate the effectiveness of virtual reality (VR) enhanced interactive videogame distraction for children undergoing experimentally induced cold pressor pain and examined the role of avoidant and approach coping style as a moderator of VR distraction effectiveness. Sixty-two children (6-13 years old) underwent a baseline cold pressor trial followed by two cold pressor trials in which interactive videogame distraction was delivered both with and without a VR helmet in counterbalanced order. ⋯ Children's coping style did not moderate their response to distraction. Rather, interactive videogame distraction with and without VR technology was equally effective for children who utilized avoidant or approach coping styles.