LAUSR

Objective In this study, we were interested in determining whether we could alter a pain response in a chronic pain patient population by exposing participants to different videos prior to inducing acute pain. Design This observational case series study required participants to report their pain level during the cold pressor task after viewing an instruction video. Setting Recruitment and testing took place in a tertiary care multidisciplinary pain center. Subjects Forty adults with chronic pain participated in the study and completed the cold pressor test. Methods Prior to testing, questionnaires measuring pain, empathy, and catastrophic thinking were completed and participants were randomized to view an instructional video where an actress either demonstrated pain behavior or a stoic response during the cold pressor test. Results Participants with higher levels of catastrophizing reported higher pain levels during the cold pressor test. Personal Distress Empathy measures of participants who viewed the pain catastrophizing video were significantly correlated with their final pain reports. Following the cold pressor task, participants' pain reports for their primary chronic pain sites were significantly reduced. Conclusions These results support previous findings that people with chronic pain show the tendency toward increased acute pain experience if levels of catastrophizing and Personal Distress Empathy measures are higher. Participants reported attenuated chronic pain following induced pain, also in line with previous research suggesting a central endogenous inhibitory effect. Our findings shed light on the role of emotional and social components affecting the experience of pain in individuals with chronic pain.