Department of Psychology, University of North Carolina, Charlotte, NC, USA.
J Pain. 2010 Mar;11(3):199-209. doi: 10.1016/j.jpain.2009.07.015. Epub 2009 Oct 22.
This study investigated the effects of brief mindfulness meditation training on ratings of painful electrical stimulation. In Experiment 1, we used a 3-day (20 min/d) mindfulness meditation intervention and measured pain ratings before and after the intervention. Participants' numerical ratings of pain to "low" and "high" electrical stimulation significantly decreased after meditation training. Pain sensitivity, measured by change in stimulus intensity thresholds, also decreased after training. We investigated, in Experiment 2, how well relaxation and a math distraction task attenuated experimental pain. Math distraction but not relaxation reduced high pain ratings. There was no reduction in pain sensitivity in these participants. In Experiment 3, we directly compared the effects of meditation with math distraction and relaxation conditions. Our findings indicated significant effects of both meditation and math distraction. Consistent with what was observed in Experiment 1, these participants also demonstrated a decrease in pain sensitivity after meditation training. Changes in the mindfulness and anxiety assessments suggest that meditation's analgesic effects are related to reduced anxiety and the enhanced ability to focus on the present moment.
Our findings indicate that a brief 3-day mindfulness meditation intervention was effective at reducing pain ratings and anxiety scores when compared with baseline testing and other cognitive manipulations. The brief meditation training was also effective at increasing mindfulness skills.
本研究调查了短暂的正念冥想训练对疼痛电刺激评分的影响。在实验 1 中,我们使用了为期 3 天(每天 20 分钟)的正念冥想干预,并在干预前后测量了疼痛评分。参与者对“低”和“高”电刺激的数字疼痛评分在冥想训练后显著降低。刺激强度阈值变化测量的疼痛敏感性也在训练后降低。在实验 2 中,我们研究了放松和数学分心任务如何减轻实验性疼痛。数学分心而不是放松降低了高疼痛评分。在这些参与者中,疼痛敏感性没有降低。在实验 3 中,我们直接比较了冥想与数学分心和放松条件的效果。我们的发现表明冥想和数学分心都有显著的效果。与实验 1 中观察到的一致,这些参与者在冥想训练后也表现出疼痛敏感性降低。正念和焦虑评估的变化表明,冥想的镇痛效果与焦虑减轻和增强关注当下的能力有关。
与基线测试和其他认知操作相比,为期 3 天的短暂正念冥想干预在降低疼痛评分和焦虑评分方面是有效的。短暂的冥想训练也能有效提高正念技能。