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 via arXiv
Summary
AI-generated from the abstractMeditation comprises diverse mental practices with distinct strategies. A meta-analysis of 78 neuroimaging studies (527 participants) found reliably different brain activation patterns for four common meditation styles—focused attention, mantra recitation, open monitoring, and compassion/loving-kindness—and suggestive differences for three others. Some brain regions (insula, pre/supplementary motor cortices, dorsal anterior cingulate cortex, frontopolar cortex) were recruited across multiple techniques, but convergence was the exception. Effect sizes were medium for both activations (d = .59) and deactivations (d = -.74), indicating potential practical significance. The findings support the neurophysiological dissociability of meditation practices while highlighting methodological concerns and future research directions.
Study at a glance
| Characteristics | Systematic review and meta-analysis Peer reviewed |
|---|---|
| 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 |
| Key finding | 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.