The Role of Attentional Control in Mindfulness Intervention for Emotional Distress: A Randomized Controlled Trial With Longitudinal Mediation Analyses

IF 3.2 3区心理学 Q1 PSYCHOLOGY, CLINICAL Clinical psychology & psychotherapy Pub Date : 2024-04-30 DOI:10.1002/cpp.2981

Zhenzhen Wang, Kaerqika Shalihaer, Stefan G. Hofmann, Shixing Feng, Xinghua Liu

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Abstract

Objective

This study aimed to investigate whether attentional control serves as a mediator for mindfulness-based interventions for emotional distress, utilizing a randomized waitlist (WL)-controlled design.

Methods

A total of 498 participants with high emotional distress was recruited online and randomly assigned to a 49-day online Mindfulness Intervention for Emotional Distress (MIED) group (N = 249) or a WL control group (N = 249). Levels of attentional control, anxiety and depression were assessed at baseline (T0), Week 3 (T3), Week 5 (T5) and Week 7 (postintervention, T7).

Results

Linear mixed models revealed significant Group-by-Time interaction effects for attentional control (p < 0.001), anxiety (p < 0.001) and depression (p < 0.05). Latent growth curve analyses demonstrated a significant increase in attentional control and a decrease in anxiety and depression levels during the MIED programme. These changes becoming evident starting Week 3. Longitudinal mediation analyses revealed that the slope of attentional control significantly mediated the effects of the MIED programme on the slope of anxiety and depression levels. Further, attentional control level at Week 3 significantly mediates the effect of MIED programme on anxiety and depression levels at Weeks 5 and 7. Similarly, attentional control level at Week 5 significantly mediates the MIED programme's effects on anxiety and depression levels at Week 7.

Conclusions

The present trial provides evidence suggesting that mindfulness interventions may alleviate emotional distress through the enhancement of attentional control.

Trial Registration

Chinese Clinical Trial Registry number: ChiCTR2200064140

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注意力控制在正念干预情绪困扰中的作用：带有纵向中介分析的随机对照试验

目的本研究采用随机候补名单（WL）对照设计，旨在探讨注意力控制是否是正念干预情绪困扰的中介因素。方法在网上招募了498名有严重情绪困扰的参与者，并将他们随机分配到为期49天的情绪困扰正念干预（MIED）在线组（249人）或WL对照组（249人）。在基线（T0）、第3周（T3）、第5周（T5）和第7周（干预后，T7）对注意力控制、焦虑和抑郁水平进行评估。结果线性混合模型显示，在注意力控制（p <0.001）、焦虑（p <0.001）和抑郁（p <0.05）方面，组与时间的交互效应非常明显。潜增长曲线分析表明，在 MIED 计划期间，注意力控制能力显著增强，焦虑和抑郁水平下降。这些变化从第 3 周开始变得明显。纵向中介分析表明，注意力控制的斜率对 MIED 计划对焦虑和抑郁水平斜率的影响有明显的中介作用。此外，第 3 周的注意力控制水平对第 5 周和第 7 周的焦虑和抑郁水平有明显的中介作用。同样，第 5 周的注意力控制水平对第 7 周 MIED 计划对焦虑和抑郁水平的影响也有明显的中介作用。结论本试验提供的证据表明，正念干预可通过增强注意力控制来缓解情绪困扰。试验注册中国临床试验注册号：ChiCTR2200064140ChiCTR2200064140

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来源期刊

Clinical psychology & psychotherapy PSYCHOLOGY, CLINICAL-

CiteScore

6.30

自引率

5.60%

发文量

106

期刊介绍： Clinical Psychology & Psychotherapy aims to keep clinical psychologists and psychotherapists up to date with new developments in their fields. The Journal will provide an integrative impetus both between theory and practice and between different orientations within clinical psychology and psychotherapy. Clinical Psychology & Psychotherapy will be a forum in which practitioners can present their wealth of expertise and innovations in order to make these available to a wider audience. Equally, the Journal will contain reports from researchers who want to address a larger clinical audience with clinically relevant issues and clinically valid research.