{"id":106,"date":"2023-05-09T18:14:43","date_gmt":"2023-05-09T16:14:43","guid":{"rendered":"https:\/\/neydo.cloud\/?p=106"},"modified":"2023-05-22T17:56:12","modified_gmt":"2023-05-22T15:56:12","slug":"de-quoi-sont-fait-les-reves","status":"publish","type":"post","link":"https:\/\/neydo.cloud\/fr\/de-quoi-sont-fait-les-reves\/","title":{"rendered":"De quoi sont faits les r\u00eaves"},"content":{"rendered":"\n

Nous r\u00eavons tous, et ce plusieurs fois par nuit : on estime que cette activit\u00e9 mentale occupe au moins 25% de notre temps de sommeil (Source : \u00ab Pourquoi r\u00eavons-nous \u00bb d’Isabelle Arnulf<\/a>, Pour la Science, n\u00b0459, d\u00e9cembre 2015<\/em>). Mais pourquoi et comment r\u00eave-t-on ? Des recherches r\u00e9centes, men\u00e9es notamment gr\u00e2ce \u00e0 l\u2019\u00e9tude de banques de r\u00eaves et \u00e0 l\u2019analyse de l\u2019activit\u00e9 c\u00e9r\u00e9brale de dormeurs, ont permis de faire progresser notre connaissance des causes et des m\u00e9canismes de nos r\u00eaves. Contrairement \u00e0 ce que l\u2019on pensait jusqu\u2019\u00e0 r\u00e9cemment, ces derniers interviennent autant pendant les phases de sommeil lent que lors des cycles de sommeil paradoxal, o\u00f9 l\u2019activit\u00e9 c\u00e9r\u00e9brale est aussi intense que lorsque nous sommes \u00e9veill\u00e9s. R\u00e9sultat : nous r\u00eavons pas moins de trois \u00e0 six fois par nuit. Un chiffre en moyenne plus \u00e9lev\u00e9 chez les femmes et les personnes \u00e0 la cr\u00e9ativit\u00e9 exacerb\u00e9e, sans doute plus attentives \u00e0 leur environnement.\u00a0<\/p>\n\n\n\n

Comment notre cerveau \u00e9chafaude-t-il les sc\u00e9narios plus ou moins \u00e9tranges de nos songes ? On estime que pr\u00e8s de 90% d\u2019entre eux font r\u00e9f\u00e9rence aux \u00e9v\u00e9nements que nous avons v\u00e9cu la veille. Le tronc c\u00e9r\u00e9bral active certaines images provenant de la journ\u00e9e \u00e9coul\u00e9e, que le reste de notre cerveau compl\u00e8te ensuite, ce qui explique l\u2019aspect parfois sibyllin de nos r\u00eaves. Ils ont pourtant leur utilit\u00e9, permettant d\u2019optimiser la m\u00e9morisation des \u00e9v\u00e9nements de la veille et de consolider les apprentissages. Et pourquoi fait-on des cauchemars ? Les r\u00eaves contiennent en moyenne deux fois plus d’\u00e9motions n\u00e9gatives que positives. C’est particuli\u00e8rement le cas durant le sommeil paradoxal car l\u2019amygdale, centre des \u00e9motions dans le cerveau, est alors tr\u00e8s active. S\u2019ils peuvent laisser une impression d\u00e9sagr\u00e9able au r\u00e9veil, ces cauchemars sont un signe de bonne sant\u00e9 psychique. Les chercheurs pensent d\u00e9sormais qu\u2019ils nous servent \u00e0 simuler des situations dangereuses pour mieux y faire face quand nous sommes \u00e9veill\u00e9s.<\/p>\n\n\n\n

Si les scientifiques y consacrent de plus en plus de recherche, le r\u00eave continue d\u2019\u00eatre un vaste continent d\u2019exploration et surtout une source fertile d\u2019inspiration.<\/p>\n","protected":false},"excerpt":{"rendered":"

Nous allons sur ce site vous parler de r\u00eaves, d\u2019odeurs, de parfums. Mais pour commencer, il \u00e9tait indispensable de vous parler de la nature des r\u00eaves et de la mati\u00e8re qui les compose, \u00e0 la fois impalpable et persistante. D\u00e9finition.<\/p>\n","protected":false},"author":2,"featured_media":173,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[8],"tags":[],"class_list":["post-106","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classe-fr"],"acf":[],"yoast_head":"\nDe quoi sont faits les r\u00eaves<\/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:\/\/neydo.cloud\/fr\/de-quoi-sont-fait-les-reves\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"De quoi sont faits les r\u00eaves\" \/>\n<meta property=\"og:description\" content=\"Nous allons sur ce site vous parler de r\u00eaves, d\u2019odeurs, de parfums. 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