OBJECTIVE "Decentering" is defined as the ability to observe one's thoughts and feelings as temporary, objective events in the mind (Safran & Segal, 1990), and is increasingly regarded as a candidate mechanism in mindfulness-based interventions. The present study sought to examine the role of decentering, and other related variables, in the efficacy of Mindfulness-based cognitive therapy (MBCT) as compared to two active comparison conditions. METHOD Formerly depressed individuals (N = 227), randomly assigned to MBCT (n = 74), relaxation group therapy (RGT; n = 77) or Treatment as usual (TAU; n = 76), completed self-report measures of decentering and symptoms of depression at pre-, mid-, and posttreatment, and relapse was assessed at 3, 6, 9, and 12 months, posttreatment. RESULTS With regard to the acute treatment phase, results indicated that, whereas levels of depression increased in both RGT and TAU, MBCT patients remained free from symptom gains. Moreover, gains in decentering from mid- to posttreatment predicted reductions in depression from pre- to posttreatment for MBCT and TAU, but not for RGT. Participants who experienced increases in decentering, measured from mid- to posttreatment, generally evidenced the lowest levels of relapse/recurrence (during the four follow-up assessments), largely irrespective of treatment group. However, results related to change in decentering should be considered exploratory due to small cell sizes among participants who did not experience gains in decentering. CONCLUSIONS Taken together, these results suggest that decentering is a potent mechanism for reduction of relapse in major depression, albeit one that is nonspecific to MBCT. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

中文翻译：

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成人抑郁症的正念认知疗法中去中心化与复发/复发减少之间的关联：一项随机对照试验。

目标 “去中心化”被定义为观察一个人的思想和感受作为头脑中暂时的、客观的事件的能力 (Safran & Segal, 1990)，并且越来越多地被视为基于正念的干预的候选机制。本研究旨在与两种主动比较条件相比，检验去中心化和其他相关变量在基于正念的认知疗法 (MBCT) 的疗效中的作用。方法 曾患有抑郁症的人 (N = 227)，随机分配到 MBCT (n = 74)、放松组治疗 (RGT; n = 77) 或照常治疗 (TAU; n = 76)，完成自我报告的偏心和在治疗前、治疗中和治疗后的抑郁症状以及治疗后 3、6、9 和 12 个月评估复发。结果 关于急性治疗阶段，结果表明，尽管 RGT 和 TAU 的抑郁水平都有所增加，但 MBCT 患者的症状仍然没有增加。此外，对于 MBCT 和 TAU，从治疗中期到治疗后去中心化的收益预测了从治疗前到治疗后抑郁症的减少，但对于 RGT 则不然。从治疗中期到治疗后测量的去中心化程度增加的参与者通常表现出最低水平的复发/复发（在四次随访评估期间），这在很大程度上与治疗组无关。然而，与去中心化变化相关的结果应该被认为是探索性的，因为在去中心化方面没有获得收益的参与者的小区规模较小。结论 综上所述，这些结果表明，去中心化是减少重度抑郁症复发的有效机制，尽管它对 MBCT 没有特异性。（PsycInfo 数据库记录 (c) 2022 APA，保留所有权利）。