Centre for Clinical Interventions, 223 James Street, Northbridge, Perth, Western Australia 6003, Australia.
J Behav Ther Exp Psychiatry. 2013 Mar;44(1):84-93. doi: 10.1016/j.jbtep.2012.07.011. Epub 2012 Aug 10.
Repetitive negative thinking (RNT) is common to multiple emotional disorders and occurs before, during, and following a stressor. One replicated difference between common forms of RNT such as worry and rumination is temporal orientation towards a stressor, with worry being more future-oriented and rumination more past-oriented. Different mechanisms may drive RNT at these different time points. The aim of Study 1 was to examine whether previously demonstrated relationships between post-stressor RNT and mechanisms theorized to drive engagement in RNT, including metacognitive beliefs, cognitive avoidance strategies, and thought control strategies, would be replicated with anticipatory (pre-stressor) RNT. The aim of Study 2 was to replicate these associations in a new sample that completed measures of both pre- and post-stressor RNT.
Participants in Study 1 (N = 175) completed the RNT-L in anticipation of a stressor, along with measures of metacognitive beliefs, cognitive avoidance strategies, and thought control strategies. Participants in Study 2 (N = 91) completed the measures both before and after a stressor.
Pre- and post-stressor RNT were significantly correlated with all three mechanism measures. Metacognitive beliefs that RNT is uncontrollable and dangerous, and the thought control strategy of punishment, were most consistently and uniquely associated with RNT at both time-points.
Replication with clinical samples and with reference to a broader array of stressors is required. The correlational design precluded causal conclusions.
Common and possibly some distinct mechanisms drive RNT before and after a stressor.
重复性消极思维（RNT）常见于多种情绪障碍，发生于应激源之前、期间和之后。常见的 RNT 形式（如担忧和反刍）之间的一个可复制的区别是对应激源的时间取向，担忧更面向未来，反刍更面向过去。不同的机制可能在这些不同的时间点驱动 RNT。研究 1 的目的是检验先前研究中应激后 RNT 与被认为驱动 RNT 的机制之间的关系，包括元认知信念、认知回避策略和思维控制策略，是否可以复制到预期（应激前）RNT 中。研究 2 的目的是在一个新的样本中复制这些关联，该样本同时完成了应激前和应激后 RNT 的测量。
研究 1 的参与者（N=175）在预期应激源的情况下完成 RNT-L 量表，同时还完成了元认知信念、认知回避策略和思维控制策略的测量。研究 2 的参与者（N=91）在完成应激前和应激后测量的同时完成了这些测量。
应激前和应激后 RNT 与所有三个机制测量都显著相关。RNT 不可控和危险的元认知信念，以及惩罚的思维控制策略，在两个时间点与 RNT 最一致且最独特地相关。
需要用临床样本进行复制，并参考更广泛的应激源。相关设计排除了因果结论。
共同的和可能一些独特的机制驱动应激源前后的 RNT。
