{"id":13346,"date":"2024-03-27T16:41:34","date_gmt":"2024-03-27T16:41:34","guid":{"rendered":"https:\/\/alphalearning.com\/retroaction-neurologique-meditation-soulagement-stress\/mechanisms-of-white-matter-changes-induced-by-meditation\/"},"modified":"2025-03-01T13:21:49","modified_gmt":"2025-03-01T13:21:49","slug":"mechanismes-modification-substance-blanche-induite-meditation","status":"publish","type":"page","link":"https:\/\/alphalearning.com\/fr\/neurofeedback-meditation-soulagement-stress\/mechanismes-modification-substance-blanche-induite-meditation\/","title":{"rendered":"M\u00e9canismes des Modifications de la Substance Blanche induites par la M\u00e9ditation"},"content":{"rendered":"\n

M\u00e9canismes des modifications de la substance blanche induites par la m\u00e9ditation<\/h1><\/div>\n\n\n\n
\n

\u00c0 l’aide de l\u2019imagerie par tenseur de diffusion, plusieurs \u00e9tudes r\u00e9centes ont montr\u00e9 que l\u2019entra\u00eenement cr\u00e9e des modifications de l\u2019efficacit\u00e9 de la substance blanche, telles que mesur\u00e9es par l\u2019anisotropie fractionnaire (FA). Dans nos travaux, nous avons constat\u00e9 qu\u2019une forme de m\u00e9ditation de pleine conscience, l\u2019entra\u00eenement corps-esprit int\u00e9gratif (IBMT), am\u00e9liorait davantage la FA dans les zones entourant le cortex cingulaire ant\u00e9rieur apr\u00e8s 4 semaines d\u2019entra\u00eenement, comparativement aux t\u00e9moins ayant re\u00e7u un entra\u00eenement de relaxation. La diminution de la diffusivit\u00e9 radiale (RD) a \u00e9t\u00e9 interpr\u00e9t\u00e9e comme une am\u00e9lioration de la my\u00e9line, tandis que la diminution de la diffusivit\u00e9 axiale (AD) implique d\u2019autres m\u00e9canismes, tels que la densit\u00e9 axonale. Nous rapportons \u00e0 pr\u00e9sent qu\u2019apr\u00e8s 4 semaines d\u2019entra\u00eenement avec l\u2019IBMT, \u00e0 la fois la RD et l\u2019AD diminuent, accompagn\u00e9es d\u2019une augmentation de la FA, indiquant que l\u2019am\u00e9lioration de l\u2019efficacit\u00e9 de la substance blanche inclut une augmentation de la my\u00e9line ainsi que d\u2019autres modifications axonales. Cependant, 2 semaines d\u2019IBMT ont r\u00e9duit l\u2019AD, mais pas la RD ni la FA, et ont am\u00e9lior\u00e9 l\u2019humeur. Nos r\u00e9sultats illustrent l\u2019\u00e9volution dans le temps de la neuroplasticit\u00e9 de la substance blanche au cours d\u2019une m\u00e9ditation de courte dur\u00e9e. Ce sch\u00e9ma dynamique de modifications de la substance blanche, impliquant le cortex cingulaire ant\u00e9rieur \u2014 partie du r\u00e9seau c\u00e9r\u00e9bral associ\u00e9 \u00e0 l\u2019autor\u00e9gulation \u2014, pourrait constituer un moyen d\u2019intervenir pour am\u00e9liorer ou pr\u00e9venir les troubles mentaux.<\/p>\n\n\n\n

D\u00e9couvrez comment obtenir ces r\u00e9sultats gr\u00e2ce au cours Alphalearning International<\/a><\/p>\n\n\n\n

T\u00e9l\u00e9chargez l\u2019article complet au format PDF<\/a><\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"

M\u00e9canismes des modifications de la substance blanche induites par la m\u00e9ditation \u00c0 l’aide de l\u2019imagerie par tenseur de diffusion, plusieurs 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m\u00e9ditation \u00c0 l’aide de l\u2019imagerie par tenseur de diffusion, plusieurs 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