Site-specific visual feedback reduces pain perception
Site-specific visual feedback reduces pain perception
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DOI：
10.1016/j.pain.2013.02.022
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发表时间：
2013-06-01
期刊：
影响因子：
7.4
通讯作者：
Flor, Herta
中科院分区：
文献类型：
--
作者：
Diers, Martin;Zieglgaensberger, Walter;Flor, Herta
背部疼痛是慢性疼痛最常见的形式之一。到目前为止，关于想象自己的背部对这个部位的疼痛感知的影响，人们还一无所知。我们测试了18名慢性背痛患者和18名健康对照，通过在斜方肌上实施疼痛压力和皮下电刺激时的背部在线视频反馈。测定痛阈值和疼痛耐受性。压痛刺激强度设为痛阈值以上50%。皮下刺激强度设为痛阈值以上70%。受试者必须对每个刺激块后的疼痛强度和不适程度进行11分的数字评级。在患者和对照组中，与手的反馈相比，背部的视觉反馈降低了感知到的疼痛强度。这些发现提出了基于增强现实应用程序的身体部位可视化的慢性背痛的新干预模式。(C)2013年国际疼痛研究协会。爱思唯尔出版，版权所有。
One of the most common forms of chronic pain is back pain. Until now, nothing has been known about the influence of visualizing one's own back on pain perception at this site. We tested 18 patients with chronic back pain and 18 healthy controls, by implementing online video feedback of the back during painful pressure and subcutaneous electrical stimuli over the trapezius muscle. Pain threshold and pain tolerance were assessed. Pressure pain stimulation intensity was set to 50% above the pain threshold. Subcutaneous stimulation intensity was set to 70% above the pain threshold. Subjects had to rate pain intensity and unpleasantness after each stimulation block on an 11-point numerical rating scale. Visual feedback of the back reduced perceived pain intensity compared to feedback of the hand in both patients and controls. These findings suggest novel intervention modes for chronic back pain based on visualization of body parts by augmented reality applications. (C) 2013 International Association for the Study of Pain. Published by Elsevier B.V. All rights reserved.