Dahlgren L A, Kurtz R M, Strube M J, Malone M D
Department of Psychology, Washington University, St. Louis, Missouri 63130, USA.
J Pain Symptom Manage. 1995 Aug;10(6):464-70. doi: 10.1016/0885-3924(95)00055-4.
Within the framework of multidimensional pain assessment, this study extended an earlier finding that hypnotic analgesia and relaxation suggestions have differential effects on pain reduction by evaluating these strategies in subjects undergoing a cold pressor protocol. Thirty-two highly susceptible subjects were randomly assigned to an analgesia or a relaxation suggestion treatment group. Six pain reports were taken at 10-sec intervals for each experimental condition. The baseline measures served as covariates. A 2 x 2 x 2 x 6 repeated-measures analysis of covariance (ANCOVA) revealed a significant group (analgesia, relaxation) by pain dimension (intensity, unpleasantness), by condition (suggestion alone, hypnotic induction plus suggestion) interaction. Analysis of the simple-simple main effects, holding both group and condition constant, revealed that application of hypnotic analgesia reduced report of pain intensity significantly more than report of pain unpleasantness. Conversely, hypnotic relaxation reduced pain unpleasantness more than intensity. The clinical implications of the study are discussed.
在多维疼痛评估框架内，本研究扩展了一项早期发现，即通过对接受冷加压试验的受试者评估催眠镇痛和放松暗示策略，发现它们对减轻疼痛有不同效果。32名高度敏感的受试者被随机分配到镇痛或放松暗示治疗组。在每种实验条件下，每隔10秒记录一次疼痛报告，共记录6次。基线测量值作为协变量。一个2×2×2×6的重复测量协方差分析（ANCOVA）显示，在疼痛维度（强度、不愉快程度）、条件（仅暗示、催眠诱导加暗示）方面，组（镇痛、放松）之间存在显著交互作用。在保持组和条件不变的情况下，对简单主效应的分析表明，应用催眠镇痛法时，疼痛强度报告的减少幅度明显大于疼痛不愉快程度报告的减少幅度。相反，催眠放松对疼痛不愉快程度的减轻作用大于对疼痛强度的减轻作用。本文讨论了该研究的临床意义。
