School of Psychology, University of Southampton, Southampton, London, UK.
Clin Psychol Rev. 2012 Feb;32(1):13-25. doi: 10.1016/j.cpr.2011.09.004. Epub 2011 Sep 17.
Research investigating the presence of attentional bias in chronic pain has produced mixed results. The purpose of this review is to summarise former research using the visual-probe task to explore attentional bias in pain populations, and meta-analyse the results of controlled investigations comparing individuals with chronic pain to healthy controls. Ten eligible studies were included in this analysis (chronic pain n=515, control n=314). Overall, individuals with chronic pain were found to show significantly greater bias towards pain-related information compared to controls, with an effect size of .36 (Hedges' adjusted g). The time-course of attentional bias was also explored, with evidence found for significant bias during stages of initial orienting of attention (effect size .29) and maintained attention (effect size .42). Bias therefore appears more pronounced during later stages of attention, possibly arising from processes of rumination. It is important for future research to fully explore the role attentional bias plays in the causation and maintenance of chronic pain, and the potential consequences bias may have upon quality of life.
研究调查了注意力偏向在慢性疼痛中的存在，得出的结果喜忧参半。本综述的目的是总结使用视觉探针任务来探索疼痛人群中注意力偏向的先前研究，并对比较慢性疼痛患者和健康对照组的对照研究结果进行元分析。本分析纳入了 10 项符合条件的研究（慢性疼痛组 n=515，对照组 n=314）。总体而言，与对照组相比，慢性疼痛患者对与疼痛相关的信息表现出明显更大的偏向，效应大小为.36（Hedges 调整后的 g）。还探讨了注意力偏向的时程，有证据表明在注意力初始定向阶段（效应大小.29）和维持阶段（效应大小.42）存在显著偏向。因此，注意力偏向在注意力的后期阶段更为明显，可能是由于沉思过程所致。未来的研究有必要充分探讨注意力偏向在慢性疼痛的发生和维持中的作用，以及偏向可能对生活质量产生的潜在影响。
