{"id":75686,"date":"2026-03-17T14:24:00","date_gmt":"2026-03-17T14:24:00","guid":{"rendered":"https:\/\/www.africa-press.net\/senegal\/politique\/aux-origines-cerebrales-de-la-geometrie"},"modified":"2026-04-19T18:16:49","modified_gmt":"2026-04-19T18:16:49","slug":"aux-origines-cerebrales-de-la-geometrie","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/aux-origines-cerebrales-de-la-geometrie","title":{"rendered":"Aux origines c\u00e9r\u00e9brales de la g\u00e9om\u00e9trie"},"content":{"rendered":"<p><span class=\"ap-article-header-tag\"> <strong>Africa-Press &#8211; Senegal. <\/strong> <\/span>Dans l\u2019ombre des parois de Lascaux, un de\u0301tail minuscule retient l\u2019attention de Stanislas Dehaene: quatre lignes noires referme\u0301es en un rectangle. Ni bison ni cheval, mais une figure abstraite trace\u0301e il y a vingt mille\u0301naires. C\u2019est a\u0300 partir de cette forme que le neuroscientifique construit son enque\u0302te: et si la ge\u0301ome\u0301trie n\u2019e\u0301tait pas ne\u0301e en Gre\u0300ce, mais inscrite de longue date dans le cerveau d\u2019 Homo sapiens?<\/p>\n<p>Un carre\u0301 n\u2019est pas seulement perc\u0327u, il est reconstruit comme re\u0301seau de relations<\/p>\n<p>Le livre, dense et solidement charpente\u0301, prolonge les cours que Stanislas Dehaene consacre au Colle\u0300ge de France aux bases neuronales des mathe\u0301matiques. Vestiges pre\u0301historiques et imagerie ce\u0301re\u0301brale s\u2019y re\u0301pondent: aux gravures de Blombos en Afrique du Sud re\u0301pondent les cartes d\u2019activation du cortex parie\u0301to-frontal ; aux bifaces acheule\u0301ens fac\u0327onne\u0301s avec une syme\u0301trie obstine\u0301e depuis plus d\u2019un million d\u2019anne\u0301es, re\u0301pondent les expe\u0301riences mene\u0301es chez l\u2019enfant, le mathe\u0301maticien expert ou le primate.<\/p>\n<p>Si le \u00ab sens du nombre \u00bb est ancien et largement partage\u0301 chez les animaux, l\u2019humain franchit, lui, un seuil de\u0301cisif en combinant des repre\u0301sentations selon des re\u0300gles internes. C\u2019est la \u00ab compositionnalite\u0301 \u00bb: soit la faculte\u0301 d\u2019assembler des e\u0301le\u0301ments simples pour engendrer une infinite\u0301 de concepts. Un carre\u0301 n\u2019est pas seulement perc\u0327u ; il est reconstruit comme re\u0301seau de relations.<\/p>\n<p>Le signe discret d\u2019une re\u0301volution cognitive ancienne<\/p>\n<p>La porte\u0301e de cette enque\u0302te scientifique rigoureuse est vertigineuse: les mathe\u0301matiques e\u0301mergeraient de l\u2019e\u0301volution d\u2019un cerveau capable de manipuler des symboles hie\u0301rarchise\u0301s. Le rectangle de Lascaux devient alors le signe discret d\u2019une re\u0301volution cognitive ancienne \u2013 peut-e\u0302tre l\u2019un des indices les plus te\u0301nus, mais aussi les plus troublants, de ce qui fait la singularite\u0301 de notre espe\u0300ce.<\/p>\n<p class=\"ap-article-footer-note\">Retrouvez plus d\u2019actualit\u00e9s et d\u2019analyses sur <span class=\"ap-highlight-country\">Senegal<\/span> sur le site <span class=\"ap-highlight-brand\">Africa Press<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Senegal. Dans l\u2019ombre des parois de Lascaux, un de\u0301tail minuscule retient l\u2019attention de Stanislas Dehaene: quatre lignes noires referme\u0301es en un rectangle. Ni bison ni cheval, mais une figure abstraite trace\u0301e il y a vingt mille\u0301naires. C\u2019est a\u0300 partir de cette forme que le neuroscientifique construit son enque\u0302te: et si la ge\u0301ome\u0301trie n\u2019e\u0301tait [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":75685,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[44],"class_list":["post-75686","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-senegal-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Aux origines c\u00e9r\u00e9brales de la g\u00e9om\u00e9trie - Senegal<\/title>\n<meta name=\"description\" content=\"-article-header-tag&quot;&gt; Africa-Press - Senegal. 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