Enhancing natural reward responsiveness among opioid users predicts relief from chronic pain: An analysis of EEG data from a trial of Mindfulness-Oriented Recovery Enhancement
ABSTRACT
Although opioid-treated chronic pain patients evidence blunted responsiveness to natural rewards, focusing on naturally rewarding stimuli can produce analgesia in these patients. A prior randomized controlled trial (RCT) demonstrated that a social work intervention—Mindfulness-Oriented Recovery Enhancement (MORE)—enhanced natural reward processing as indicated by event-related brain potentials (ERPs). The aim of the present study was to perform a secondary data analysis on ERPs collected in this RCT to explore whether improvements in electrocortical response to natural reward predicted pain relief.
The sample for this secondary analysis included opioid-treated chronic pain patients with complete ERP data (N = 29). Participants were randomized to 8 weeks of MORE or a support group control condition, and ERPs to images representing naturally rewarding stimuli were measured before and after 8 weeks of treatment. We explored associations between changes in brain reward response, chronic pain symptoms, and pain coping.
Increases in ERP reward response were significantly associated with decreased pain severity from pretreatment to posttreatment (β = −.48, p = .007) and improvements in pain catastrophizing (β = −.36, p = .05) and diverting attention as a means of pain coping (β = .38, p = .043). Increased ERP reward response predicted decreased pain interference by 3-month follow-up (β = −.37, p = .048).
Chronic pain may be alleviated by enhancing brain response to natural rewards.
CITATION
Garland, E. L., & Howard, M. O. (2018). Enhancing natural reward responsiveness among opioid users predicts relief from chronic pain: An analysis of EEG data from a trial of Mindfulness-Oriented Recovery Enhancement. Journal of the Society for Social Work and Research, 9(2), pp. 285-303.
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