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A randomized controlled dismantling study of Visual Schema Displacement Therapy (VSDT) vs an abbreviated EMDR protocol vs a non-active control condition in individuals with disturbing memories
European Journal of Psychotraumatology ( IF 5.783 ) Pub Date : 2021-04-09 , DOI: 10.1080/20008198.2021.1883924
Suzy J M A Matthijssen 1, 2 , Thomas C Brouwers 1, 2 , Marcel A van den Hout 1, 2 , Irene G Klugkist 3 , Ad de Jongh 4, 5, 6, 7, 8
Affiliation  

ABSTRACT

Background: Visual Schema Displacement Therapy (VSDT) is a novel therapy for the treatment of fears and trauma-related mental health problems including PTSD. VSDT proved to be effective in reducing emotionality of aversive memories in healthy individuals in two previous randomized controlled trials and outperformed both a non-active control condition (CC) and an abbreviated version of EMDR therapy, a well-established first-line treatment for posttraumatic stress disorder.

Objectives: In an effort to enhance the understanding concerning the efficacy of VSDT, and to determine its active components, a dismantling study was conducted in individuals with disturbing memories in which the effects of VSDT were tested against EMDR therapy, a non-active CC and three different VSDT-protocols, each excluding or altering a hypothesized active component.

Method: Participants (N = 144) were asked to recall an emotional aversive event and were randomly assigned to one of these six interventions, each lasting 8 minutes. Emotional disturbance and vividness of participants’ memories were rated before and after the intervention and at one and four-week follow-up.

Results: Replicatory Bayesian analyses supported hypotheses in which VSDT was superior to the CC and the EMDR condition in reducing emotionality, both directly after the intervention and at one week follow-up. However, at four-week follow-up, VSDT proved equal to EMDR while both treatments were superior to the CC. Concerning vividness the data also showed support for hypotheses predicting VSDT being equal to EMDR and both being superior to the CC in vividness reduction. Further analyses specifying differences between the abbreviated VSDT protocols detected no differences between these conditions.

Conclusion: It remains unclear how VSDT yields its positive effects. Because VSDT appears to be unique and effective in decreasing emotionality of aversive memories, replication of the results in clinical samples is needed.



中文翻译:

视觉图式置换疗法 (VSDT) 与简化 EMDR 方案与非主动控制条件在具有令人不安记忆的个体中的随机对照拆解研究

摘要

背景:视觉图式置换疗法 (VSDT) 是一种治疗恐惧和创伤相关心理健康问题(包括 PTSD)的新型疗法。在之前的两项随机对照试验中,VSDT 被证明可有效减少健康个体厌恶记忆的情绪,并且优于非主动控制条件 (CC) 和简化版本的 EMDR 疗法,EMDR 疗法是一种行之有效的创伤后一线治疗方法应激障碍。

目的:为了加深对 VSDT 功效的理解,并确定其活性成分,在具有干扰记忆的个体中进行了拆解研究,其中测试了 VSDT 对 EMDR 疗法、非活性 CC 和三种不同的 VSDT 协议,每一种都排除或改变了一个假设的活性成分。

方法:参与者 ( N  = 144) 被要求回忆一个情绪厌恶事件,并被随机分配到这六种干预措施中的一种,每次持续 8 分钟。在干预前后以及随访 1 周和 4 周时评估参与者的情绪障碍和记忆的生动性。

结果:复制贝叶斯分析支持 VSDT 在降低情绪方面优于 CC 和 EMDR 条件的假设,无论是在干预后直接还是在一周的随访中。然而,在 4 周的随访中,VSDT 证明与 EMDR 相同,而两种治疗均优于 CC。关于鲜艳度,数据还显示支持预测 VSDT 等于 EMDR 并且在降低鲜艳度方面均优于 CC 的假设。进一步分析指定缩写 VSDT 协议之间的差异,发现这些条件之间没有差异。

结论:目前尚不清楚 VSDT 如何产生积极影响。由于 VSDT 在降低厌恶记忆的情绪方面似乎是独特且有效的,因此需要在临床样本中复制结果。

更新日期:2021-04-09
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