Background and objectives

Cognitive-behavioural models of obsessive-compulsive disorder (OCD) suggest that maladaptive beliefs about perfectionism play a key role in the development and maintenance of OCD. Cognitive-bias modification for interpretation bias (CBM-I) is an experimental procedure that can test this proposed causal relation.

Methods

As such, the current study investigated whether multiple CBM-I sessions administered in different contexts can modify perfectionism biases. Undergraduate students high in OCD-related perfectionism beliefs were randomly allocated to either an experimental (n = 44) or control (n = 44) training condition and completed self-report and behavioural measures of perfectionism and OCD symptoms.

Results

As predicted, relative to the control condition, participants in the experimental condition exhibited a significant decrease in perfectionism beliefs, from baseline to after one CBM-I training session, which was maintained at one-week follow-up. Contrary to hypotheses, there were no significant differences between conditions on measures of OCD symptoms and perfectionistic behaviour.

Limitations

Issues with the current study's behavioural measures may have precluded any differences between conditions.

Conclusions

Results underscore the need to further refine cognitive-behavioural models of OCD to understand the precise causal relation between beliefs and symptoms.

中文翻译：

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改变对完美主义的强迫信念的影响

背景和目标

强迫症 (OCD) 的认知行为模型表明，对完美主义的不适应信念在强迫症的发展和维持中起着关键作用。解释偏差的认知偏差修正 (CBM-I) 是一个实验程序，可以测试这个提出的因果关系。

方法

因此，目前的研究调查了在不同背景下进行的多个 CBM-I 会话是否可以改变完美主义偏见。强迫症相关完美主义信念高的本科生被随机分配到实验（n  = 44）或对照（n  = 44）训练条件，并完成自我报告和完美主义和强迫症症状的行为测量。

结果

正如预测的那样，相对于控制条件，实验条件下的参与者表现出完美主义信念的显着下降，从基线到一次 ​​CBM-I 培训课程后，该培训课程在一周的随访中保持不变。与假设相反，强迫症症状和完美主义行为的测量条件之间没有显着差异。

限制

当前研究的行为测量问题可能已经排除了条件之间的任何差异。

结论

结果强调需要进一步完善强迫症的认知行为模型，以了解信念和症状之间的精确因果关系。