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Gaël Chételat

PhIND "Physiopathology and Imaging of Neurological Disorders", Normandie University, UNICAEN, INSERM, U1237, Institut Blood and Brain at Caen-Normandie, Cyceron, 14000, Caen, France.

3 papers in the library · 21 citations · publishing 2023-2024

Papers

Effects of a mindfulness-based intervention and a health self-management programme on psychological well-being in older adults with subjective cognitive decline: Secondary analyses from the SCD-Well randomised clinical trial.

PloS one January 1, 2023 Marco Schlosser, Harriet Demnitz-King, Thorsten Barnhofer et al. 13 citations

Older adults with subjective cognitive decline (SCD) recruited from memory clinics are at higher risk for dementia and often have reduced well-being due to memory concerns and fear of dementia. A randomized trial compared an 8-week caring mindfulness-based approach for seniors (CMBAS) with a health self-management program (HSMP) in 147 participants. The mindfulness program showed a small advantage over HSMP in improving a sense of connection immediately after the intervention. However, overall psychological well-being, quality of life, and other composite measures did not increase in either group. The findings suggest that these brief non-pharmacological interventions had only limited effects on well-being in SCD.

An 18-month meditation training selectively improves psychological well-being in older adults: A secondary analysis of a randomised controlled trial.

PloS one January 1, 2023 Marco Schlosser, Olga M Klimecki, Fabienne Collette et al. 6 citations

An 18-month meditation training program for healthy older adults aged 65 to 84 improved a composite measure of well-being encompassing awareness, connection, and insight, compared to an active control of English language training. The meditation group also showed significant increases in psychological quality of life, awareness, insight, and the global score from the start to the end of the study. However, meditation did not outperform the active control on the Psychological Well-being Scale total score, and improvements in psychological quality of life were no longer significant after adjusting for multiple comparisons. The trial, involving 137 participants, represents the longest randomized meditation training study to date.

ENIGMA-Meditation: Worldwide consortium for neuroscientific investigations of meditation practices

April 8, 2024 Saampras Ganesan, Aki Tsuchiyagaito, Greg J. Siegle et al. 2 citations preprint

Meditation practices, which have been adapted into manualized interventions for conditions like depression, pain, addiction, and anxiety, show therapeutic promise, but their neuroscientific basis remains unclear. Current neuroimaging studies rely on small, heterogeneous datasets that vary in practice types, participant experience, clinical targets, and imaging methods, limiting generalizability and replicability. To address this, the ENIGMA-Meditation consortium was formed as a global collaboration to conduct systematic meta- and mega-analyses of distributed neuroimaging data using standardized methods. This framework aims to improve statistical power and rigorously characterize the neural mechanisms underlying meditation's effects on psychological and cognitive attributes, advancing the field of contemplative neuroscience.