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Brain changes following mindfulness: Reduced caudate volume is associated with decreased positive urgency.
- Source :
-
Behavioural Brain Research . Mar2024, Vol. 461, pN.PAG-N.PAG. 1p. - Publication Year :
- 2024
-
Abstract
- Mindfulness training has been shown to improve psychological health and general well-being. However, it is unclear which brain and personality systems may be affected by this practice for improving adaptive behavior and quality of life. The present study explores the effects of a 5-week mindfulness-based intervention (MBI) at the neuroanatomical level and its relationship with dispositional mindfulness and impulsivity. Sixty-six risky drivers were quasi-randomly assigned to a mindfulness training group (MT) or a control group (N). Participants underwent magnetic resonance imaging and completed the Five Facet Mindfulness Questionnaire (FFMQ) and the UPPS-P impulsivity scale twice, at baseline and after receiving the MBI. We observed that MBI changes dispositional mindfulness in the non-reactivity and observing facets. Further, we observed that the magnitude of change in impulsivity was associated with the change in dispositional mindfulness. Whole-brain voxel-wise analysis revealed that the volume of the right caudate nucleus of the MT group (n = 27) showed a reduction compared to that of the control group (n = 33), which increased in terms of the pre-post measurement (MT=−1.76 mm3; N = 6.31 mm3). We also observed that reduced caudate nucleus volume correlated with decreased positive urgency in the MT group. Taken together, our results show that MBI improves the skills of observing and non-reactivity to inner experience, while producing changes in the structure of the caudate nucleus. These structural changes are associated with a reduction in impulsivity levels, decreasing the tendency to act rashly in situations that generate positive emotions and thus facilitating more adaptive behavior. • Mindfulness training improves observing and non-reactivity skills. • Mindfulness training produces changes in the volume of the caudate nucleus. • Reductions in caudate gray matter volume are related to lower positive urgency. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01664328
- Volume :
- 461
- Database :
- Academic Search Index
- Journal :
- Behavioural Brain Research
- Publication Type :
- Academic Journal
- Accession number :
- 175026579
- Full Text :
- https://doi.org/10.1016/j.bbr.2024.114859