{"id":21555,"date":"2026-09-25T03:30:04","date_gmt":"2026-09-25T02:30:04","guid":{"rendered":"https:\/\/www.revue3emillenaire.com\/blog\/?p=21555"},"modified":"2026-09-25T03:30:04","modified_gmt":"2026-09-25T02:30:04","slug":"le-retour-du-cerveau-reptilien-il-semble-que-non-par-denyse-oleary","status":"publish","type":"post","link":"https:\/\/www.revue3emillenaire.com\/blog\/le-retour-du-cerveau-reptilien-il-semble-que-non-par-denyse-oleary\/","title":{"rendered":"Le retour du cerveau reptilien ? Il semble que non par Denyse O\u2019Leary"},"content":{"rendered":"<p align=\"justify\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #000000;\">Oui, le cerveau reptilien est un vieux favori de la psychologie populaire. Par exemple, saviez-vous que votre cerveau reptilien \u00ab <a href=\"https:\/\/scitechdaily.com\/how-your-lizard-brain-fuels-overthinking-and-social-anxiety\/\">alimente<\/a> la rumination mentale et l\u2019anxi\u00e9t\u00e9 sociale \u00bb ?<\/span><\/span><\/span><\/p>\n<p align=\"justify\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #000000;\">L\u2019affirmation selon laquelle nous avons un cerveau reptilien sous-jacent \u00e0 notre cerveau humain est un \u00e9l\u00e9ment incontournable des manuels de psychologie de premier cycle universitaire et r\u00e9appara\u00eet dans de nombreux autres contextes, probablement parce qu\u2019il est tout simplement trop agr\u00e9able pour qu\u2019on accepte de l\u2019abandonner.<\/span><\/span><\/span><\/p>\n<h2 class=\"western\" align=\"justify\"><strong><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><b>Vous <\/b><\/span><\/span><\/span><\/strong><strong><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><b>vous <\/b><\/span><\/span><\/span><\/strong><strong><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><b>sentez <\/b><\/span><\/span><\/span><\/strong><strong><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><b>froid et<\/b><\/span><\/span><\/span><\/strong><strong><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><b> sans c\u0153ur ? Bl\u00e2mez votre cerveau reptilien<\/b><\/span><\/span><\/span><\/strong><\/h2>\n<p align=\"justify\"><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\">Le neuroscientifique <\/span><\/span><\/span><strong><a href=\"https:\/\/www.psywww.com\/intropsych\/ch09-motivation\/limbic-origins-of-emotion.html\"><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\">Paul D. MacLean<\/span><\/span><\/span><\/a><\/strong><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"> (1913-2007) a d\u00e9velopp\u00e9 cette th\u00e9orie dans les ann\u00e9es\u00a01960. Son livre de 1990, <\/span><\/span><\/span><em><a href=\"https:\/\/books.google.ca\/books\/about\/The_Triune_Brain_in_Evolution.html?id=4PmLFmNdHL0C&amp;redir_esc=y\"><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\">The Triune Brain in Evolution<\/span><\/span><\/span><\/a><\/em><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\">, postulait l\u2019existence de <a href=\"https:\/\/www.thescienceofpsychotherapy.com\/the-triune-brain\/\">trois couches <\/a><\/span><\/span><\/span><a href=\"https:\/\/www.thescienceofpsychotherapy.com\/the-triune-brain\/\"><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\">c\u00e9r\u00e9brales <\/span><\/span><\/span><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\">successives<\/span><\/span><\/span><\/a><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\">\u00a0: la couche reptilienne (physiologie), la couche des premiers mammif\u00e8res (\u00e9motion) et la couche des mammif\u00e8res plus \u00e9volu\u00e9s (intelligence). Carl Sagan a popularis\u00e9 cette notion avec son livre de 1977, <\/span><\/span><\/span><em><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\">The Dragons of Eden <\/span><\/span><\/span><\/em><em><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\">(tr fr<\/span><\/span><\/span><\/em><em><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"> Les dragons de l\u2019Eden<\/span><\/span><\/span><\/em><em><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\">)<\/span><\/span><\/span><\/em><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\">.<\/span><\/span><\/span><\/p>\n<p align=\"justify\"><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\">Il est facile de comprendre pourquoi les gens peuvent s\u2019accrocher \u00e0 l\u2019id\u00e9e d\u2019un cerveau reptilien pour expliquer \u2014 ou fournir une <a href=\"https:\/\/scienceandculture.com\/2026\/07\/whats-an-explainaway-here-is-an-example-from-the-debate-on-near-death-experiences\/\">pseudo-explication<\/a> \u00e0 \u2014 des sujets complexes. Mais les <\/span><\/span><\/span><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\">base<\/span><\/span><\/span><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\">s neuroscientifiques de cette id\u00e9e ne sont tout simplement pas tr\u00e8s convaincantes. Un article r\u00e9cent de <\/span><\/span><\/span><em><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\">Science Daily<\/span><\/span><\/span><\/em><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\">, provenant de Georgia Tech, nous aide \u00e0 comprendre certains des probl\u00e8mes en jeu. Extrait de \u00ab Scientists challenge a 70-year-old \u201clizard brain\u201d myth \u00bb\u00a0:<\/span><\/span><\/span><\/p>\n<p style=\"padding-left: 80px;\" align=\"justify\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><i><span style=\"color: #000000;\">De nombreux choix importants semblent opposer la raison \u00e0 l\u2019\u00e9motion. La culture populaire d\u00e9crit souvent cette tension comme une lutte entre deux parties du cerveau\u00a0: un centre plus r\u00e9cent et plus avanc\u00e9 consacr\u00e9 \u00e0 la pens\u00e9e rationnelle, et un ancien \u00ab cerveau reptilien \u00bb qui fonctionne <\/span><span style=\"color: #000000;\">par<\/span><span style=\"color: #000000;\"> instinct. Mais l\u2019histoire \u00e9volutive du cerveau semble bien plus complexe qu\u2019une simple lutte entre l\u2019ancien et le nouveau.<\/span><\/i><\/span><\/span><\/p>\n<h2 class=\"western\" align=\"justify\"><strong><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><b>I<\/b><\/span><\/span><\/span><\/strong><strong><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><b>ntelligence contre \u00e9motions<\/b><\/span><\/span><\/span><\/strong><\/h2>\n<p align=\"justify\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #000000;\">Les cerveaux des animaux diff\u00e8rent, ont constat\u00e9 les chercheurs, quant \u00e0 la proportion d\u2019espace consacr\u00e9e au n\u00e9ocortex (l\u2019\u00ab intelligence \u00bb) et au syst\u00e8me limbique (les \u00ab \u00e9motions \u00bb), en fonction des besoins pratiques\u00a0:<\/span><\/span><\/span><\/p>\n<p style=\"padding-left: 80px;\" align=\"justify\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><i><span style=\"color: #000000;\">Cette r\u00e9partition pourrait contribuer \u00e0 expliquer des diff\u00e9rences frappantes entre les animaux r\u00e9els. Le tatou \u00e0 neuf bandes, qui d\u00e9pend fortement de l\u2019odorat, poss\u00e8de un tr\u00e8s grand syst\u00e8me limbique. Le singe-\u00e9cureuil, qui d\u00e9pend fortement de la vision, a un cerveau domin\u00e9 par le n\u00e9ocortex.<\/span><\/i><\/span><\/span><\/p>\n<p style=\"padding-left: 80px;\" align=\"justify\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><i><span style=\"color: #000000;\">Dans les 182\u00a0esp\u00e8ces incluses dans l\u2019\u00e9tude, les r\u00e9sultats sugg\u00e8rent que l\u2019\u00e9volution du cerveau consiste moins \u00e0 ajouter progressivement de nouvelles couches de \u00ab logique \u00bb qu\u2019\u00e0 redistribuer l\u2019espace entre diff\u00e9rents syst\u00e8mes de connexions en fonction de ce qui aide un animal \u00e0 survivre.<\/span><\/i><\/span><\/span><\/p>\n<p align=\"justify\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #000000;\">Extrait de l\u2019article en libre acc\u00e8s\u00a0:<\/span><\/span><\/span><\/p>\n<p style=\"padding-left: 80px;\" align=\"justify\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><i><span style=\"color: #000000;\">Nous avons constat\u00e9 que les r\u00e9seaux optimis\u00e9s pour les repr\u00e9sentations visuelles, somatosensorielles et auditives d\u00e9veloppent des cartes spatiotopiques ordonn\u00e9es, dans lesquelles les unit\u00e9s tirent leurs informations de r\u00e9gions localis\u00e9es de l\u2019entr\u00e9e sensorielle. En revanche, les r\u00e9seaux optimis\u00e9s pour les repr\u00e9sentations olfactives et la m\u00e9moire relationnelle d\u00e9veloppent des cartes fragment\u00e9es, avec des sch\u00e9mas distribu\u00e9s de convergence de l\u2019information.<\/span><\/i><\/span><\/span><\/p>\n<p align=\"justify\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #000000;\">Il s\u2019av\u00e8re que les animaux poss\u00e8dent des cerveaux tr\u00e8s diff\u00e9rents, coh\u00e9rents avec ce dont le reste de leur corps a besoin pour vivre. Et il n\u2019existe pas d\u2019explication simple \u00e0 la complexit\u00e9 du cerveau humain, qui est peut-\u00eatre l\u2019objet le plus complexe de l\u2019univers.<\/span><\/span><\/span><\/p>\n<p align=\"justify\"><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\">Texte original publi\u00e9 le <\/span><\/span><span style=\"color: #000000;\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\">10\u00a0septembre 2026\u00a0: <\/span><\/span><\/span><a href=\"https:\/\/scienceandculture.com\/2026\/09\/return-of-the-lizard-brain-it-seems-not\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\">https:\/\/scienceandculture.com\/2026\/09\/return-of-the-lizard-brain-it-seems-not\/<\/span><\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>La culture populaire d\u00e9crit souvent cette tension comme une lutte entre deux parties du cerveau\u00a0: un centre plus r\u00e9cent et plus avanc\u00e9 consacr\u00e9 \u00e0 la pens\u00e9e rationnelle, et un ancien \u00ab cerveau reptilien \u00bb qui fonctionne par instinct. Mais l\u2019histoire \u00e9volutive du cerveau semble bien plus complexe qu\u2019une simple lutte entre l\u2019ancien et le nouveau. [&#8230;] Il s\u2019av\u00e8re que les animaux poss\u00e8dent des cerveaux tr\u00e8s diff\u00e9rents, coh\u00e9rents avec ce dont le reste de leur corps a besoin pour vivre. Et il n\u2019existe pas d\u2019explication simple \u00e0 la complexit\u00e9 du cerveau humain, qui est peut-\u00eatre l\u2019objet le plus complexe de l\u2019univers.<\/p>\n","protected":false},"author":2,"featured_media":20738,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[2205],"tags":[116],"class_list":["post-21555","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-oleary-denyse","tag-cerveau"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Le retour du cerveau reptilien ? Il semble que non par Denyse O\u2019Leary - 3e mill\u00e9naire - Spiritualit\u00e9 - Connaissance de soi - Non-dualit\u00e9 - M\u00e9ditation<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.revue3emillenaire.com\/blog\/le-retour-du-cerveau-reptilien-il-semble-que-non-par-denyse-oleary\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Le retour du cerveau reptilien ? 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Et il n\u2019existe pas d\u2019explication simple \u00e0 la complexit\u00e9 du cerveau humain, qui est peut-\u00eatre l\u2019objet le plus complexe de l\u2019univers.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.revue3emillenaire.com\/blog\/le-retour-du-cerveau-reptilien-il-semble-que-non-par-denyse-oleary\/\" \/>\n<meta property=\"og:site_name\" content=\"3e mill\u00e9naire - Spiritualit\u00e9 - Connaissance de soi - Non-dualit\u00e9 - M\u00e9ditation\" \/>\n<meta property=\"article:published_time\" content=\"2026-09-25T02:30:04+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.revue3emillenaire.com\/blog\/wp-content\/uploads\/2025\/08\/Denyse-OLeary.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"319\" \/>\n\t<meta property=\"og:image:height\" content=\"346\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"3e mill\u00e9naire\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"3e mill\u00e9naire\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.revue3emillenaire.com\\\/blog\\\/le-retour-du-cerveau-reptilien-il-semble-que-non-par-denyse-oleary\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.revue3emillenaire.com\\\/blog\\\/le-retour-du-cerveau-reptilien-il-semble-que-non-par-denyse-oleary\\\/\"},\"author\":{\"name\":\"3e mill\u00e9naire\",\"@id\":\"https:\\\/\\\/www.revue3emillenaire.com\\\/blog\\\/#\\\/schema\\\/person\\\/b692dacff720a5344a6190bc714397eb\"},\"headline\":\"Le retour du cerveau reptilien ? 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Il semble que non par Denyse O\u2019Leary - 3e mill\u00e9naire - Spiritualit\u00e9 - Connaissance de soi - Non-dualit\u00e9 - M\u00e9ditation","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.revue3emillenaire.com\/blog\/le-retour-du-cerveau-reptilien-il-semble-que-non-par-denyse-oleary\/","og_locale":"fr_FR","og_type":"article","og_title":"Le retour du cerveau reptilien ? Il semble que non par Denyse O\u2019Leary - 3e mill\u00e9naire - Spiritualit\u00e9 - Connaissance de soi - Non-dualit\u00e9 - M\u00e9ditation","og_description":"La culture populaire d\u00e9crit souvent cette tension comme une lutte entre deux parties du cerveau\u00a0: un centre plus r\u00e9cent et plus avanc\u00e9 consacr\u00e9 \u00e0 la pens\u00e9e rationnelle, et un ancien \u00ab cerveau reptilien \u00bb qui fonctionne par instinct. Mais l\u2019histoire \u00e9volutive du cerveau semble bien plus complexe qu\u2019une simple lutte entre l\u2019ancien et le nouveau. [...] Il s\u2019av\u00e8re que les animaux poss\u00e8dent des cerveaux tr\u00e8s diff\u00e9rents, coh\u00e9rents avec ce dont le reste de leur corps a besoin pour vivre. 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