Peters M L, Schmidt A J
University of Limburg, Dept of Medical Psychology, Maastricht, The Netherlands.
J Psychosom Res. 1992 Jan;36(1):47-53. doi: 10.1016/0022-3999(92)90113-g.
Pain perception threshold (PPT), maximal pain tolerance (MPT) and pain discrimination of CLBP patients and controls were tested. Pain perception threshold was significantly higher in the patient group for two different pain stimuli (electrical and pressure pain). Maximal pain tolerance was significantly higher in CLBP patients only for the pressure pain stimulus. There was no difference between the groups in their capacity to discriminate between painful stimuli of different intensity, as measured by a forced-choice task. It is concluded that CLBP patients have a decreased sensitivity for experimental pain. Two theories which might explain this decreased sensitivity are discussed.
对慢性下腰痛（CLBP）患者和对照组的疼痛感知阈值（PPT）、最大疼痛耐受度（MPT）和疼痛辨别能力进行了测试。在两种不同的疼痛刺激（电刺激和压力疼痛）下，患者组的疼痛感知阈值显著更高。仅在压力疼痛刺激下，CLBP患者的最大疼痛耐受度显著更高。通过强制选择任务测量发现，两组在区分不同强度疼痛刺激的能力上没有差异。得出的结论是，CLBP患者对实验性疼痛的敏感性降低。讨论了可能解释这种敏感性降低的两种理论。
