Functional neuroanatomy of meditation: A review and meta-analysis of 78 functional neuroimaging investigations
Kieran C. R. Fox, Matthew L. Dixon, Savannah Nijeboer, Manesh Girn, James L. Floman, Michael Lifshitz, Melissa Ellamil, Peter Sedlmeier, Kalina Christoff
arXiv Preprint Archive March 21, 2016 preprint
Study at a glance
AI-extracted from the abstract| Characteristics | Systematic review and meta-analysis |
|---|---|
| Sample size | 527 |
| Population | Meditation practitioners from functional neuroimaging studies |
| Interventions | mantra recitation visualization non-dual awareness practices |
| Topics | Meditation |
| Keywords | Q-bio.nc Meditation neuroscience mindfulness Neural meditation Cognitive science neurobiology Brain research Psychological practice Brain training |
| Key findings | Four common meditation styles show reliably dissociable brain activation patterns consistent with their psychological aims, with medium effect sizes for activations and deactivations. |
Abstract
Meditation is a family of mental practices that encompasses a wide array of techniques employing distinctive mental strategies. We systematically reviewed 78 functional neuroimaging (fMRI and PET) studies of meditation, and used activation likelihood estimation to meta-analyze 257 peak foci from 31 experiments involving 527 participants. We found reliably dissociable patterns of brain activation and deactivation for four common styles of meditation (focused attention, mantra recitation, open monitoring, and compassion/loving-kindness), and suggestive differences for three others (visualization, sense-withdrawal, and non-dual awareness practices). Overall, dissociable activation patterns are congruent with the psychological and behavioral aims of each practice. Some brain areas are recruited consistently across multiple techniques - including insula, pre/supplementary motor cortices, dorsal anterior cingulate cortex, and frontopolar cortex - but convergence is the exception rather than the rule. A preliminary effect-size meta-analysis found medium effects for both activations (d = .59) and deactivations (d = -.74), suggesting potential practical significance. Our meta-analysis supports the neurophysiological dissociability of meditation practices, but also raises many methodological concerns and suggests avenues for future research.
Comparable studies
Other systematic reviews and meta-analyses on meditation, most cited first.
| Study | Year | Design | Participants |
|---|---|---|---|
| Meditation Programs for Psychological Stress and Well-being Diverse adult clinical populations | 2014 | Meta-analysis | n = 3,515 |
| Mindfulness-Based Stress Reduction for Stress Management in Healthy People: A Review and Meta-Analysis Healthy subjects | 2009 | Systematic review and meta-analysis | |
| The psychological effects of meditation: A meta-analysis. Nonclinical groups of adult meditators | 2012 | Meta-analysis | n = 163 |
| Efficacy of Mindfulness-Based Cognitive Therapy in Prevention of Depressive Relapse Adults with recurrent depression in full or partial remission | 2016 | Meta-analysis of individual patient data from randomized controlled trials | n = 1,258 |
| Mindfulness‐Based Stress Reduction and Mindfulness‐Based Cognitive Therapy – a systematic review of randomized controlled trials | 2011 | Systematic review |