Mindfulness-based intervention reduce interference of negative stimuli to working memory in individuals with subclinical depression: a randomized controlled fMRI study

Chengjin Hong; Cody Ding; Yiwen Chen; Shiyue Cao; Yi Hou; Weiyu Hu; Dong Yang

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Mindfulness-based intervention reduce interference of negative stimuli to working memory in individuals with subclinical depression: a randomized controlled fMRI study

Chengjin Hong ^[1] ; Cody Ding ^[1] ; Yiwen Chen ^[2] ; Shiyue Cao ^[1] ; Yi Hou ^[1] ; Weiyu Hu ^[3] ; Dong Yang ^[1]
1. [1] Southwest University
  
  Southwest University
  
  China
2. [2] University of Nottingham
  
  University of Nottingham
  
  Reino Unido
3. [3] Beijing Normal University
  
  Beijing Normal University
  
  China
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Localización: International journal of clinical and health psychology, ISSN 1697-2600, Vol. 24, Nº. 2, 2024, págs. 181-190
Idioma: inglés
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Resumen
- Background Individuals with subclinical depression are prone to major depression and experience emotional responses and attentional biases to negative stimuli.
  
  Method In a randomized controlled study (N = 42) using functional magnetic resonance imaging (fMRI), we examined the neurocognitive mechanisms behind mindfulness-based cognitive therapy (MBCT) combining loving-kindness meditation (LKM) on a group with subclinical depression compared with the relaxation group across emotional face n-back (EFNBACK) tasks and resting state. We also collected behavioral and self-reported data to confirm neurocognitive results.
  
  Results During EFNBACK, the MBCT+LKM group showed greater activation in the left lingual gyrus and right inferior lateral occipital cortex. During rest, the MBCT+LKM group demonstrated increased connectivity of the anterior cingulate cortex and right inferior lateral occipital cortex, right anterior insula and left precentral gyrus. From amplitude of low frequency fluctuation (ALFF) data, activity in brain regions associated with cognitive control decreased and activity in brain regions associated with sensorimotor increased.
  
  Conclusion These results suggest that MBCT+LKM alleviate depression for subclinical individuals through improving executive function when they face negative stimuli.