{"id":567863,"date":"2025-11-30T01:45:24","date_gmt":"2025-11-30T01:45:24","guid":{"rendered":"https:\/\/www.europesays.com\/fr\/567863\/"},"modified":"2025-11-30T01:45:24","modified_gmt":"2025-11-30T01:45:24","slug":"ces-quatre-ages-ou-notre-cerveau-basculerait","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/fr\/567863\/","title":{"rendered":"ces quatre \u00e2ges o\u00f9 notre cerveau basculerait"},"content":{"rendered":"<p>    Pour leurs travaux, les chercheurs se sont appuy\u00e9s sur plus de 4200 IRM de diffusion, qui permettent de suivre le trajet de mol\u00e9cules d\u2019eau \u00e0 travers le tissu c\u00e9r\u00e9bral.<br \/>\n                Illustration Charlotte Paroielle\/Le Figaro &#8211; Photos COLLANGES \/ IMAGE POINT FR \/ BSIP via AFP et Dr Alexa Mousley, University of Cambridge<\/p>\n<p>\n    En analysant la fa\u00e7on dont notre cerveau se structure au fil de l\u2019existence, des chercheurs distinguent de grandes p\u00e9riodes qui soutiendraient autant de fa\u00e7ons de penser, et seraient peut-\u00eatre une des clefs des maladies mentales et neuronales.<\/p>\n<p class=\"fig-paragraph\">9, 32, 66 et 83\u00a0ans: voici les quatre \u00e2ges auxquels surviennent de grands bouleversements dans l\u2019organisation de\u00a0<a href=\"https:\/\/sante.lefigaro.fr\/sante\/organe\/cerveau\/quelles-sont-principales-maladies-cerveau\" target=\"_blank\" data-fig-type=\"Keyword\" rel=\"sponsored noopener\" data-gtm-custom-categorie=\"navigation\" data-gtm-custom-action=\"crossclick\" data-gtm-custom-label=\"Contextuel\" data-gtm-event=\"customEventSPE\" data-fig-domain=\"SANTE\">notre cerveau,<\/a>\u00a0selon des chercheurs de l\u2019Universit\u00e9 de Cambridge. \u00c0 chaque \u00e2ge ses caract\u00e9ristiques c\u00e9r\u00e9brales, expliquent les chercheurs, qui entra\u00eenent autant de fa\u00e7on de penser&#8230; et qui pourraient d\u00e9tenir des clefs de plusieurs pathologies c\u00e9r\u00e9brales, estiment-ils. Mauvaise nouvelle pour ceux qui ont h\u00e2te de voir leur ch\u00e9rubin sortir de l\u2019\u00e2ge tourment\u00e9 de l\u2019adolescence\u00a0: du point de vue c\u00e9r\u00e9bral, l\u2019adolescence ne s\u2019ach\u00e8verait pas avant&#8230; 32 ans\u00a0!<\/p>\n<p class=\"fig-paragraph\">Dans leurs travaux publi\u00e9s\u00a0<a href=\"https:\/\/www.nature.com\/articles\/s41467-025-65974-8\" target=\"_blank\" rel=\"sponsored noopener\" data-gtm-custom-categorie=\"navigation\" data-gtm-custom-action=\"crossclick\" data-gtm-custom-label=\"Contextuel\" data-gtm-event=\"customEventSPE\">dans la revue Nature Communications<\/a>, les chercheurs britanniques ont analys\u00e9 plus de 4200 \u00abIRM de diffusion\u00bb r\u00e9alis\u00e9s sur des patients \u00e2g\u00e9s de 0 \u00e0 90 ans. L\u2019IRM de diffusion permet de suivre le trajet des mol\u00e9cules d\u2019eau \u00e0 travers le tissu c\u00e9r\u00e9bral, pour cartographier les r\u00e9seaux neuronaux. \u00ab\u00a0Si l\u2019eau diffuse dans une direction, cela indique dans quel sens vont les axones (les fibres nerveuses\u2026<\/p>\n<p class=\"fig-premium-paywall__infos\">\n        Cet article est r\u00e9serv\u00e9 aux abonn\u00e9s.        Il vous reste 90% \u00e0 d\u00e9couvrir.\n    <\/p>\n<p>                <img  data- alt=\"Le Figaro\" class=\"fig-img--complete fig-img\"\/><\/p>\n<p class=\"fig-premium-paywall__title\">Black Friday : derniers jours<\/p>\n<p class=\"fig-premium-paywall__subtitle\">-70% sur l&rsquo;abonnement num\u00e9rique<\/p>\n<p class=\"fig-premium-paywall__connect\">\n                D\u00e9j\u00e0 abonn\u00e9\u00a0?                <a class=\"fig-premium-paywall__connect-link\" href=\"https:\/\/connect.lefigaro.fr\/login?client=sante_web&amp;type=main&amp;redirect_uri=https%3A%2F%2Fsante.lefigaro.fr%2Fmedecine%2Fl-adolescence-s-acheve-a-32-ans-ces-quatre-ages-ou-notre-cerveau-basculerait-20251129\" data-js-gtm=\"{&quot;customCategorie&quot;: &quot;conversion&quot;, &quot;customAction&quot;: &quot;before_Landing_Connexion_paywall_auto&quot;, &quot;customLabel&quot;: &quot;c2FudGUubGVmaWdhcm8uZnJfXzFmMGNhZTEwLWZmY2ItNjEwOC1iMmFiLWNmMGY4MGFmMTAwNl9fQXJ0aWNsZQ==_\u00abL\u2019adolescence s\u2019ach\u00e8ve \u00e0 32 ans\u00bb\u00a0: ces quatre \u00e2ges o\u00f9 notre cerveau basculerait_422&quot;, &quot;customIDSPE&quot;: &quot;c2FudGUubGVmaWdhcm8uZnJfXzFmMGNhZTEwLWZmY2ItNjEwOC1iMmFiLWNmMGY4MGFmMTAwNl9fQXJ0aWNsZQ==&quot;, &quot;event&quot;: &quot;customEventSPE&quot;}\" target=\"_blank\" rel=\"noopener\"><br \/>\n                    Connectez-vous<br \/>\n                <\/a>\n            <\/p>\n","protected":false},"excerpt":{"rendered":"Pour leurs travaux, les chercheurs se sont appuy\u00e9s sur plus de 4200 IRM de diffusion, qui permettent de&hellip;\n","protected":false},"author":2,"featured_media":567864,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[231,1011,27,72,27924,71],"class_list":{"0":"post-567863","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-sante","8":"tag-cerveau","9":"tag-fr","10":"tag-france","11":"tag-health","12":"tag-neurone","13":"tag-sante"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@fr\/115636124026410513","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts\/567863","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/comments?post=567863"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts\/567863\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/media\/567864"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/media?parent=567863"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/categories?post=567863"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/tags?post=567863"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}