Department of Psychology, Ryerson University, 350 Victoria Street, Toronto, ON, M5B 2K3, Canada.
Department of Psychology, Ryerson University, 350 Victoria Street, Toronto, ON, M5B 2K3, Canada.
J Behav Ther Exp Psychiatry. 2020 Sep;68:101521. doi: 10.1016/j.jbtep.2019.101521. Epub 2019 Oct 12.
Individuals with high anxiety sensitivity (AS) display negative interpretive biases in response to uncomfortable but nondangerous physical sensations. Research suggests that modifying interpretation biases associated with AS leads to changes in AS. The present study sought to replicate and extend this research by addressing limitations of previous studies, increasing the amount of training and adding a follow-up period.
Participants high in AS were randomly assigned to four sessions of computerized interpretation bias modification (CBM-I) training or four sessions of computerized "sham" training (control condition) over a 2-week period. The outcomes were AS, interpretive biases, and reactions to induced physical sensations. Assessments occurred at baseline, during training, immediately after the final training session, and 2 weeks after the final training; number of re-assessments varied by outcome.
The CBM-I condition did not outperform the control condition. At the end of the training period, the CBM-I condition displayed limited reductions in AS and interpretation biases. There were no changes in reactions to induced physical sensations. Similar results were found in the control condition for all outcomes.
The control task and the dose of training may have obscured potential effects of CBM-I.
When considered within the context of previous research, the experimental effects and therapeutic potential of CBM-I for high AS appear to be minimal. However, methodological questions need to be resolved before such a conclusion can be considered definitive.
焦虑敏感个体在面对不舒适但无危险的身体感觉时会表现出消极的解释性偏见。研究表明，改变与焦虑敏感相关的解释性偏见会导致焦虑敏感的变化。本研究旨在通过解决先前研究的局限性、增加训练量并增加随访期来复制和扩展这一研究。
高焦虑敏感个体被随机分配到计算机化解释偏差修正（CBM-I）训练的四个疗程或计算机化“假”训练的四个疗程（对照组），为期两周。结果为焦虑敏感、解释性偏见和对诱导身体感觉的反应。评估在基线时、训练期间、最后一次训练结束时以及最后一次训练结束后两周进行；因结果而异，评估次数不同。
CBM-I 组并未优于对照组。在训练期结束时，CBM-I 组仅显示出对焦虑敏感和解释性偏见的有限减少。对诱导身体感觉的反应没有变化。对照组在所有结果中均表现出相似的结果。
控制任务和训练剂量可能掩盖了 CBM-I 的潜在效果。
考虑到先前研究的背景，CBM-I 对高焦虑敏感的实验效果和治疗潜力似乎很小。然而，在得出这样的结论之前，需要解决方法学问题。
