Department of Clinical and Health Psychology, University of Florida, Gainesville, FL, USA.
J Pain Res. 2009 Aug 19;2:109-16. doi: 10.2147/jpr.s6357.
The present study measured the effects of catastrophizing self-statements and positive coping self-statements on cold pressor-induced pain. Participants were 58 adult chronic pain patients with current facial pain. It was hypothesized that catastrophizing would lead to a decrease in pain endurance whereas positive coping would lead to an increase in pain endurance. It was also hypothesized that catastrophizing would lead to an increase in peak pain intensity whereas positive coping would lead to a decrease in peak pain intensity. At pretest, participants submerged their nondominant hand in the cold pressor. Pain sensitivity ranges (PSR) were subsequently determined by calculating the difference between tolerance and threshold times. Ratings of peak pain intensity were measured using a pressure sensitive bladder/transducer. Participants underwent random assignment to either a catastrophizing group or a positive coping self-statement group. ANCOVA results revealed that on average, participants employing catastrophizing statements as a coping strategy experienced significantly lower PSR (M = 35.53, SD = 39.71) compared to participants employing positive coping self-statements (M = 73.70, SD = 86.14) when controlling for pretest PSR. Group assignment had no significant influence on peak pain intensity ratings. Thus, our results reveal that manipulation of coping causes changes in pain endurance.
本研究旨在测量灾难化自我陈述和积极应对自我陈述对冷压引起的疼痛的影响。参与者为 58 名患有当前面部疼痛的成年慢性疼痛患者。研究假设灾难化会导致疼痛耐受力降低，而积极应对则会导致疼痛耐受力增加。研究还假设灾难化会导致峰值疼痛强度增加，而积极应对则会导致峰值疼痛强度降低。在预测试中，参与者将非优势手浸入冷压机中。随后通过计算耐受时间和阈值时间之间的差异来确定疼痛敏感范围 (PSR)。使用压力敏感膀胱/换能器测量峰值疼痛强度的评分。参与者被随机分配到灾难化组或积极应对自我陈述组。ANCOVA 结果表明，平均而言，与采用积极应对自我陈述的参与者（M = 73.70，SD = 86.14）相比，采用灾难化陈述作为应对策略的参与者的 PSR（M = 35.53，SD = 39.71）显著降低，在控制预测试 PSR 时。组分配对峰值疼痛强度评分没有显著影响。因此，我们的结果表明，应对方式的改变会导致疼痛耐受力的变化。
