Department of Psychology, University of Denver, Denver, Colorado.
Department of Psychology, California State University, Long Beach, California.
Depress Anxiety. 2020 May;37(5):438-448. doi: 10.1002/da.23018. Epub 2020 Apr 17.
Cognitive bias modification for interpretations (CBM-I) is a computerized intervention that has received increasing attention in the last decade as a potential experimental intervention for anxiety. Initial CBM-I trials with clinical populations suggest the potential utility of this approach. However, most CBM-I experiments have been conducted with unaffected samples, few (one or two) training sessions, and have not examined transfer effects to anxiety-related constructs such as stress reactivity.
This study compared a 12-session CBM-I intervention (n = 12) to an interpretation control condition (ICC; n = 12) in individuals (N = 24) with elevated trait anxiety on interpretation bias, anxiety symptom, and stress reactivity outcomes (electrodermal activity, heart rate, and respiratory sinus arrhythmia).
Compared to the ICC group, participants assigned to CBM-I experienced significantly greater improvements in interpretation bias and anxiety symptoms by post-intervention 4 weeks later, with impact on anxiety maintained at 1-month follow-up. While CBM-I and ICC groups did not differ in stress reactivity during an acute stressor at pre-intervention, the CBM-I group evidenced improved stress reactivity at post-intervention compared to ICC on two psychophysiological indices, electrodermal activity and heart rate.
The results of this pilot study suggest that CBM-I may hold promise for reducing anxiety symptoms, as well as impact psychophysiological arousal during an acute stressor.
认知偏差修正解释（CBM-I）是一种计算机化的干预措施，在过去十年中作为焦虑的潜在实验干预措施受到越来越多的关注。初步的 CBM-I 临床试验表明了这种方法的潜在效用。然而，大多数 CBM-I 实验都是在未受影响的样本中进行的，只有一到两次训练课程，并且没有检查对焦虑相关结构（如应激反应）的转移效应。
本研究比较了 12 节 CBM-I 干预（n=12）与解释控制条件（ICC；n=12）在解释偏差、焦虑症状和应激反应结果（皮肤电活动、心率和呼吸窦性心律失常）方面具有较高特质焦虑的个体（N=24）。
与 ICC 组相比，CBM-I 组在干预后 4 周时，在解释偏差和焦虑症状方面的改善显著更大，在 1 个月随访时，焦虑的影响仍保持不变。虽然 CBM-I 组和 ICC 组在急性应激源前的应激反应中没有差异，但与 ICC 相比，CBM-I 组在两项生理心理指标上（皮肤电活动和心率）表现出在干预后的应激反应得到改善。
这项初步研究的结果表明，CBM-I 可能有希望减轻焦虑症状，并减轻急性应激源期间的生理心理唤醒。
