Jones Simon R, Fernyhough Charles
Department of Psychology, Durham University, Durham, UK.
Cogn Neuropsychiatry. 2008 Jul;13(4):281-95. doi: 10.1080/13546800802087830.
Thought suppression may play a role in the formation and/or maintenance of persecutory delusions, although this possibility has not yet been empirically studied. We investigated thought suppression levels in relation to the presence of persecutory delusion-like beliefs (PDLBs), and hypothesised that only when levels of anxiety or negative affect were high would thought suppression predict levels of PDLBs.
Thought suppression, anxiety, negative affect, social desirability, and persecutory ideation were assessed in a nonclinical sample (N=183) using online questionnaires.
When gender, anxiety, and negative affect were controlled, the interaction between thought suppression and anxiety predicted levels of PDLBs. Further analysis of this interaction showed that thought suppression was positively associated with PDLBs only when anxiety was high. Neither thought suppression by itself, nor the two-way interaction between negative affect and thought suppression, nor the three-way interaction between negative affect, anxiety, and thought suppression, were predictors of PDLB levels.
The results are consistent with a proposed interaction between thought suppression and anxiety in the development of PDLBs. Possible causal mechanisms underlying this relation are considered further, future research in the area proposed, and potential clinical implications examined.
尽管这种可能性尚未得到实证研究，但思维抑制可能在被害妄想的形成和/或维持中起作用。我们调查了与被害妄想样信念（PDLB）的存在相关的思维抑制水平，并假设只有当焦虑或消极情绪水平较高时，思维抑制才会预测PDLB的水平。
使用在线问卷对一个非临床样本（N = 183）的思维抑制、焦虑、消极情绪、社会期望和被害观念进行评估。
在控制了性别、焦虑和消极情绪后，思维抑制与焦虑之间的交互作用预测了PDLB的水平。对这种交互作用的进一步分析表明，只有当焦虑水平较高时，思维抑制才与PDLB呈正相关。思维抑制本身、消极情绪与思维抑制之间的双向交互作用，以及消极情绪、焦虑和思维抑制之间的三向交互作用，均不是PDLB水平的预测因素。
这些结果与所提出的思维抑制与焦虑在PDLB发展中的交互作用一致。进一步考虑了这种关系背后可能的因果机制，提出了该领域未来的研究方向，并探讨了潜在的临床意义。
