Crombez G, Eccleston C, Van den Broeck A, Van Houdenhove B, Goubert L
Ghent University, Henri Dunantlaan 2, B-9000 Gent, Belgium.
Pain Res Manag. 2002 Spring;7(1):31-9. doi: 10.1155/2002/576792.
Previous studies have shown that catastrophic thinking about pain enhances attentional interference in healthy volunteers.
To investigate whether the attentional effects of pain catastrophizing can be accounted for by the more general predisposition of negative affectivity.
Sixty-seven pain-free students participated in the first experiment, and 33 patients with chronic low back pain participated in the second experiment. In both experiments, participants performed an auditory reaction time task while being exposed to a series of threatening electrocutaneous stimuli. Retardation in reaction times to auditory probes during pain was taken as an index of the attentional interruption by pain. Participants also completed self-report instruments of negative affectivity and pain catastrophizing.
In both experiments, pain catastrophizing enhanced attentional interference by pain. This effect was most pronounced immediately after the onset of the electrocutaneous stimulus. The effect remained after controlling for the effects of negative affectivity.
Catastrophic thinking about pain enhances attentional interruption by pain in normal samples, as well as in clinical samples of patients with chronic back pain. This effect is specific to pain catastrophizing and cannot be explained by the more general disposition of negative affectivity.
先前的研究表明，对疼痛的灾难性思维会增强健康志愿者的注意力干扰。
探讨疼痛灾难化的注意力效应是否可由更普遍的消极情感倾向来解释。
67名无疼痛的学生参与了第一个实验，33名慢性下腰痛患者参与了第二个实验。在两个实验中，参与者在暴露于一系列威胁性皮肤电刺激时执行听觉反应时间任务。疼痛期间对听觉探测的反应时间延迟被用作疼痛引起的注意力中断指标。参与者还完成了消极情感和疼痛灾难化的自我报告工具。
在两个实验中，疼痛灾难化都增强了疼痛引起的注意力干扰。这种效应在皮肤电刺激开始后立即最为明显。在控制了消极情感的影响后，这种效应仍然存在。
对疼痛的灾难性思维会增强正常样本以及慢性背痛患者临床样本中疼痛引起的注意力中断。这种效应是疼痛灾难化所特有的，不能用更普遍的消极情感倾向来解释。
