Posted 12.18.2019 | by AMRA
Over 15 million Americans report having an opioid use disorder, and opioid-related deaths currently exceed 45,000 per year. As people become addicted to opioids, they become more emotionally responsive to drug-related cues and less emotionally responsive to cues signaling the availability of naturally occurring rewards. Naturally occurring rewards include those that come from relationships, accomplishments, and aesthetic appreciation.
It is possible to measure this shift in cue responsiveness using an electroencephalogram (EEG). The Late Positive Potential (LPP) is an EEG wave that arises 400-800 milliseconds after a stimulus is presented. LPPs originate in the emotional processing centers of the brain and are down-regulated by the cognitive processing centers.
Opiate users show larger LPPs to drug-related cues than to natural reward cues. Moreover, larger LPPs in response to drug-related cues are associated with stronger drug-related cravings and an increased likelihood of opioid misuse. Interventions that reduce the salience of drug-related cues and restore the salience of natural reward cues can help in opioid abuse recovery.
Garland et al. [Science Advances] conducted four experiments to assess whether Mindfulness-Oriented Recovery Enhancement (MORE) could help opioid users reduce their emotional responsiveness to drug-related images (e.g., pills and pill bottles) and restore their responsiveness to images of naturally occurring rewards (e.g., social affiliation, natural beauty, sports victories). Emotional responsiveness was assessed using LPP magnitudes and participants’ subjective ratings of craving and positive affect.
The researchers randomly assigned three samples of middle-aged chronic prescription opioid users (total number of participants = 135; average opioid use duration = 10 years; 51% female; 84% Caucasian) to an 8-week Mindfulness-Oriented Recovery Enhancement (MORE) program or an 8-week support group control. The MORE program included training […]