{"id":1949,"date":"2022-11-12T12:35:37","date_gmt":"2022-11-12T11:35:37","guid":{"rendered":"https:\/\/www.diagnostic-mental.fr\/blog\/non-classe\/causes-of-adhd\/"},"modified":"2022-11-12T12:55:54","modified_gmt":"2022-11-12T11:55:54","slug":"causes-du-tdah-2","status":"publish","type":"post","link":"https:\/\/www.diagnostic-mental.fr\/blog\/tdah-adhd\/causes-du-tdah-2\/","title":{"rendered":"Causes du TDAH"},"content":{"rendered":"<p>Quelles sont les causes du trouble d\u00e9ficitaire de l&#8217;attention avec hyperactivit\u00e9 ? Des facteurs g\u00e9n\u00e9tiques et environnementaux influencent le <a href=\"https:\/\/www.diagnostic-mental.fr\/test-tdah\">d\u00e9veloppement du TDAH<\/a>, comme pour les autres troubles psychiatriques du d\u00e9veloppement. La recherche confirme que le trouble d\u00e9ficitaire de l&#8217;attention avec hyperactivit\u00e9 est un probl\u00e8me familial. Son taux d&#8217;h\u00e9ritabilit\u00e9 est estim\u00e9 \u00e0 76 %, l&#8217;un des plus \u00e9lev\u00e9s parmi les troubles psychiatriques. Des conditions non g\u00e9n\u00e9tiques jouent \u00e9galement un r\u00f4le dans le <strong>d\u00e9veloppement du TDAH<\/strong>, telles que :<\/p>\n<ul>\n<li>stress p\u00e9rinatal ;<\/li>\n<li>faible poids \u00e0 la naissance ;<\/li>\n<li>dommages au syst\u00e8me nerveux central ;<\/li>\n<li>tabagisme, consommation de drogues, consommation d&#8217;alcool, prise de m\u00e9dicaments psychoactifs par la m\u00e8re pendant la grossesse ;<\/li>\n<li>privation \u00e9motionnelle s\u00e9v\u00e8re en bas \u00e2ge ;<\/li>\n<li>exposition du f\u0153tus ou de l&#8217;enfant en d\u00e9but de vie \u00e0 des toxines environnementales, par exemple le plomb, les pesticides, les polychlorobiph\u00e9nyles.<\/li>\n<\/ul>\n<p>L&#8217;\u00e9mergence des <strong>sympt\u00f4mes du TDAH<\/strong> est expliqu\u00e9e, entre autres, par la th\u00e9orie de Russel Barkley. Selon cet auteur, le d\u00e9veloppement des sympt\u00f4mes de ce trouble est li\u00e9 \u00e0 un d\u00e9ficit des fonctions d&#8217;inhibition et de contr\u00f4le du syst\u00e8me nerveux central. Les cons\u00e9quences de ce d\u00e9ficit inhibiteur sont :<\/p>\n<ul>\n<li>activit\u00e9 motrice excessive ;<\/li>\n<li>impulsivit\u00e9 ;<\/li>\n<li>une m\u00e9tastabilit\u00e9 accrue de l&#8217;attention ;<\/li>\n<li>un manque de monologue interne pour l&#8217;auto-instruction pendant l&#8217;activit\u00e9.<\/li>\n<\/ul>\n<p>Le d\u00e9ficit d&#8217;inhibition est un trait de temp\u00e9rament d\u00e9termin\u00e9 g\u00e9n\u00e9tiquement ou le r\u00e9sultat de dommages aux structures c\u00e9r\u00e9brales responsables du contr\u00f4le du comportement. Les \u00e9tudes de neuro-imagerie confirment des diff\u00e9rences dans la structure et la fonction du cerveau chez les <strong>enfants atteints de TDAH<\/strong>. Des changements ont \u00e9t\u00e9 d\u00e9montr\u00e9s dans la taille, la proportion, le flux sanguin et le m\u00e9tabolisme du cortex pr\u00e9frontal, des noyaux basaux, du grand spiracle et du cervelet.<\/p>\n<hr \/>\n<p>Source \/ Bibilographie<\/p>\n<ul>\n<li><em>https:\/\/www.damian.pl\/zdrowie-psychiczne\/adhd\/<\/em><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Quelles sont les causes du trouble d\u00e9ficitaire de l&#8217;attention avec hyperactivit\u00e9 ? Des facteurs g\u00e9n\u00e9tiques et environnementaux influencent le d\u00e9veloppement du TDAH, comme pour les&#8230;<\/p>\n","protected":false},"author":1,"featured_media":1977,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false},"categories":[37],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v18.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Causes du TDAH - Diagnostic Mental<\/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.diagnostic-mental.fr\/blog\/tdah-adhd\/causes-du-tdah-2\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Causes du TDAH - Diagnostic Mental\" \/>\n<meta property=\"og:description\" content=\"Quelles sont les causes du trouble d\u00e9ficitaire de l&#8217;attention avec hyperactivit\u00e9 ? 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