The Role of Attentional Control in Mindfulness Intervention for Emotional Distress: A Randomized Controlled Trial With Longitudinal Mediation Analyses.
Zhenzhen Wang, Kaerqika Shalihaer, Stefan G Hofmann, Shixing Feng, Xinghua Liu
Clinical psychology & psychotherapy January 1, 2024 DOI: 10.1002/cpp.2981 via PubMed
Summary
AI-generated from the abstractA 49-day online mindfulness intervention for emotional distress (MIED) increased attentional control and reduced anxiety and depression in 498 adults with high emotional distress, compared with a waitlist control group. Changes became evident by the third week. Statistical analyses showed that improvements in attentional control mediated the program's effects on later anxiety and depression levels. The findings suggest that mindfulness-based programs may alleviate emotional distress partly by strengthening attentional control.
Study at a glance
| Characteristics | Randomized controlled trial Longitudinal Peer reviewed |
|---|---|
| Sample size | 498 |
| Population | Adults with high emotional distress recruited online |
| Intervention | Mindfulness Intervention for Emotional Distress (MIED) |
| Duration | 49-day intervention, assessed at baseline, Week 3, Week 5, and Week 7 |
| Keywords | Attentional control Emotional distress Mediation Mindfulness‐based interventions Randomized controlled trial |
| Citations | 10 |
| Key finding | Attentional control mediated the effects of a 49-day online mindfulness intervention on reductions in anxiety and depression. |
Abstract
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. 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). 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. The present trial provides evidence suggesting that mindfulness interventions may alleviate emotional distress through the enhancement of attentional control. Chinese Clinical Trial Registry number: ChiCTR2200064140.