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Brigitte Landeau

8 papers in the library · 120 citations · publishing 2017-2025

Papers

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Impact of meditation on brain age derived from multimodal neuroimaging in experts and older adults from a randomized trial

Scientific Reports October 28, 2025 Sacha Haudry, Natacha Lambert, Christian Gaser et al.

Meditation is thought to promote healthy aging by improving mental health, preserving brain integrity and reducing Alzheimer's disease risk. We examined the impact of long-term meditation expertise and an 18-month meditation training on brain aging in older adults using machine learning. We included 25 Older Expert Meditators (OldExpMed) with > 20 years of practice and 135 Cognitively...

Examining cognitive differences in expert meditators and non-meditators older adults.

Scientific Reports May 15, 2025 Florence Requier, Hamed Mohammadi, Harriet Demnitz-King et al.

With aging, slight changes in some cognitive processes can be observed. Therefore, we aimed to assess if meditation expertise is associated with preserved cognition in key domains affected in aging. We used data from two older-adult samples of the Medit-Ageing Age-well Study: 135 non-meditators and 27 expert meditators. We examined group differences in four objective cognitive domains...

Effects of an 18-month meditation training on dynamic functional connectivity states in older adults: Secondary analyses from the Age-Well randomized controlled trial

Imaging Neuroscience 2025 Sacha Haudry, Sophie Dautricourt, Julie Gonneaud et al.

Meditation training in older adults has been proposed as a non-pharmacological intervention to promote healthy aging and lower the risks of developing Alzheimer's disease (AD). Resting-state dynamic functional network connectivity (dFNC) highlighted two brain states, the "strongly connected" and "default mode network (DMN)-negatively connected" states, associated with protective factors for...

Meditation dosage predicts self- and teacher-perceived responsiveness to an 18-month randomised controlled trial

Scientific Reports November 2, 2024 Marco Schlosser, Julie Gonneaud, Stefano Poletti et al. 2 citations

Understanding the factors that predict why some individuals perceive to respond more to meditation training than others could impact the development, efficacy, adherence levels, and implementation of meditation-based interventions. We investigated individual-level variables associated with self- and teacher-perceived responsiveness to longer-term meditation training. This study presents a...

Effect of an 18-Month Meditation Training on Regional Brain Volume and Perfusion in Older Adults

JAMA Neurology October 10, 2022 Gaël Chételat, Antoine Lutz, Olga Klimecki et al. 45 citations

Importance: No lifestyle-based randomized clinical trial directly targets psychoaffective risk factors of dementia. Meditation practices recently emerged as a promising mental training exercise to foster brain health and reduce dementia risk. Objective: To investigate the effects of meditation training on brain integrity in older adults. Design, Setting, and Participants: Age-Well was a...

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

Scientific Reports August 25, 2017 Gaël Chételat, Florence Mezenge, Clémence Tomadesso et al. 67 citations

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...