Background:Cognitive models of obsessive-compulsive disorder attribute a causal role to maladaptive beliefs.Aims:To test this hypothesis, we manipulated Overimportance of Thoughts (OT) beliefs and experimentally evaluated their effect on the response to an induced aggressive impulse.Method:Eighty-five participants completed a battery of self-report instruments assessing obsession symptoms, thought control, affectivity and obsessive beliefs, and were then randomly assigned to two conditions. In the experimental condition participants read a scientific abstract on the importance of thought control whilst those in the control condition read a neutral abstract. All participants identified a loved person and imagined feeling the impulse to stab this person, then completed again OT beliefs measures (Overimportance of Thought, Moral-Thought Action Fusion and Thought Action Fusion Likelihood).Results:The Moral component of the Thought Action Fusion was reduced by reading a brief text about the possibility and desirability of thought control. However, experimentally induced changes in beliefs did not yield differences in the intrusiveness of the aggressive impulse.Conclusions:Some beliefs can be modified through a single session in which information similar to what could be obtained in quotidian life is provided.

中文翻译：

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对关于思想的重要性和对攻击性冲动的影响的信念进行实验性操纵

背景：强迫症的认知模型将因果关系归因于适应不良的信念。目的：为了检验这一假设，我们操纵了思想的过度重要性（OT）信念，并通过实验评估了它们对诱导的攻击性冲动反应的影响。方法：八十- 五名参与者完成了一系列评估强迫症状、思维控制、情感和强迫信念的自我报告工具，然后被随机分配到两个条件。在实验条件下，参与者阅读关于思想控制重要性的科学摘要，而在控制条件下，参与者阅读中性摘要。所有参与者都确定了一个所爱的人，并想象自己有刺伤这个人的冲动，然后再次完成了 OT 信念测量（思想的过度重要性，道德-思想行动融合和思想行动融合可能性）。结果：通过阅读有关思想控制的可能性和可取性的简短文本，减少了思想行动融合的道德成分。然而，实验诱导的信念变化并没有在攻击性冲动的侵入性方面产生差异。结论：一些信念可以通过一次会议进行修改，其中提供与日常生活中可以获得的信息相似的信息。