Spanos N P, Jones B, Brown J M, Horner D
Perception. 1983;12(3):355-62. doi: 10.1068/p120355.
Pain magnitude when subjects immersed an arm in ice water was assessed by means of a magnitude estimation procedure during baseline and posttest sessions. Before the posttest session, subjects either received or did not receive an analgesic suggestion. Best-fit functions were linear, though power fits were also good. Analgesic suggestions had no effect on the rate of change in pain intensity. When subjects were classified as copers or catastrophizers on the basis of written testimony, pain intensity increased more rapidly for catastrophizers than for copers during the posttest session but not during the baseline session. Subjects who kept their arm immersed for more than 240 s were classified as high in tolerance. High-tolerance subjects experienced a slower rate of growth in pain intensity than low-tolerance subjects. Theoretical implications of the results are discussed.
在基线期和测试后阶段，通过量级估计程序评估受试者将一只手臂浸入冰水中时的疼痛程度。在测试后阶段之前，受试者要么接受了镇痛暗示，要么没有接受。最佳拟合函数是线性的，不过幂函数拟合也不错。镇痛暗示对疼痛强度的变化率没有影响。根据书面证词将受试者分为应对者或灾难化者时，在测试后阶段，灾难化者的疼痛强度比应对者增加得更快，但在基线期并非如此。将手臂浸入冰水中超过240秒的受试者被归类为耐受性高。高耐受性受试者的疼痛强度增长速度比低耐受性受试者慢。讨论了结果的理论意义。
