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Reduced age-associated brain changes in expert meditators: a multimodal neuroimaging pilot study

Gaël Chételat, Florence Mezenge, Clémence Tomadesso, Brigitte Landeau, Eider M. Arenaza‐Urquijo, Géraldine Rauchs, Claire André, Robin de Florès, Stéphanie Egret, Julie Gonneaud, Géraldine Poisnel, Anne Chocat, Anne Quillard, Béatrice Desgranges, Jean-Gérard Bloch, Matthieu Ricard, Antoine Lutz

Scientific Reports August 25, 2017 DOI: 10.1038/s41598-017-07764-x (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Pilot study Longitudinal Peer reviewed
Sample size 73
Population Elderly expert meditators and elderly controls
Intervention Meditation practice
Topics Meditation
Keywords Precuneus Posterior cingulate Insula Neuroimaging Ventromedial prefrontal cortex Cohort Brain size Anterior cingulate cortex Cognition Audiology Magnetic resonance imaging Electroencephalography
Citations 67
Key points Elderly expert meditators had greater gray matter volume and/or FDG metabolism in multiple brain regions compared to elderly controls, suggesting meditation may reduce age-related brain changes.

Abstract

Aging is associated with progressive cerebral volume and glucose metabolism decreases. Conditions such as stress and sleep difficulties exacerbate these changes and are risk factors for Alzheimer's disease. Meditation practice, aiming towards stress reduction and emotion regulation, can downregulate these adverse factors. In this pilot study, we explored the possibility that lifelong meditation practice might reduce age-related brain changes by comparing structural MRI and FDG-PET data in 6 elderly expert meditators versus 67 elderly controls. We found increased gray matter volume and/or FDG metabolism in elderly expert meditators compared to controls in the bilateral ventromedial prefrontal and anterior cingulate cortex, insula, temporo-parietal junction, and posterior cingulate cortex /precuneus. Most of these regions were also those exhibiting the strongest effects of age when assessed in a cohort of 186 controls aged 20 to 87 years. Moreover, complementary analyses showed that these changes were still observed when adjusting for lifestyle factors or using a smaller group of controls matched for education. Pending replication in a larger cohort of elderly expert meditators and longitudinal studies, these findings suggest that meditation practice could reduce age-associated structural and functional brain changes.

Comparable studies

Other non-randomized and open-label trials on meditation, most cited first.

Study Year Design Participants
Mindfulness-Based Stress Reduction in Relation to Quality of Life, Mood, Symptoms of Stress, and Immune Parameters in Breast and Prostate Cancer Outpatients Early-stage breast and prostate cancer patients 2003 Pre-post intervention study n = 59
Exploring self‐compassion and empathy in the context of mindfulness‐based stress reduction (MBSR) Community sample 2010 Pre-post intervention study
Mindfulness-Based Stress Reduction Lowers Psychological Distress In Medical Students Second-year medical students 2003 Prospective nonrandomized cohort-controlled study n = 302
Intensive meditation training, immune cell telomerase activity, and psychological mediators. Retreat participants and matched controls 2011 Controlled trial with wait-list control group n = 60
The Effectiveness of Mindfulness Training for Children with ADHD and Mindful Parenting for their Parents Children aged 8-12 with ADHD and their parents 2011 Within-group waitlist controlled trial n = 22

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