{"id":10218,"date":"2024-02-20T21:28:25","date_gmt":"2024-02-20T21:28:25","guid":{"rendered":"https:\/\/dailyai.com\/?p=10218"},"modified":"2024-02-20T21:57:06","modified_gmt":"2024-02-20T21:57:06","slug":"stanford-ai-model-accurately-differentiates-male-and-female-brains","status":"publish","type":"post","link":"https:\/\/dailyai.com\/fr\/2024\/02\/stanford-ai-model-accurately-differentiates-male-and-female-brains\/","title":{"rendered":"Un mod\u00e8le d'IA de Stanford diff\u00e9rencie avec pr\u00e9cision les cerveaux masculins et f\u00e9minins"},"content":{"rendered":"<p><b>Le centre m\u00e9dical de l'universit\u00e9 de Stanford a utilis\u00e9 l'IA pour d\u00e9tecter les diff\u00e9rences structurelles entre les cerveaux masculins et f\u00e9minins.\u00a0<\/b><\/p>\n<p><span style=\"font-weight: 400;\">L'\u00e9tude a permis d'identifier le sexe des individus avec une pr\u00e9cision de plus de 90% sur la base des scanners de l'activit\u00e9 c\u00e9r\u00e9brale, jetant ainsi la lumi\u00e8re sur le sujet longtemps d\u00e9battu des diff\u00e9rences structurelles sp\u00e9cifiques au sexe dans le cerveau.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Les <\/span><a href=\"https:\/\/www.pnas.org\/doi\/10.1073\/pnas.2310012121\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">recherche<\/span><\/a><span style=\"font-weight: 400;\">publi\u00e9 dans les Proceedings of the National Academy of Sciences (PNAS), affirme que ces diff\u00e9rences am\u00e9lioreront notre compr\u00e9hension et notre traitement des troubles neuropsychiatriques qui se manifestent de mani\u00e8re distincte chez les femmes et les hommes.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Le Dr Vinod Menon, directeur du laboratoire de neurosciences cognitives et syst\u00e9miques de Stanford, a expliqu\u00e9 l'importance de reconna\u00eetre les diff\u00e9rences entre les sexes dans le cerveau.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\"Le sexe joue un r\u00f4le crucial dans le d\u00e9veloppement du cerveau humain, dans le vieillissement et dans la manifestation de troubles psychiatriques et neurologiques\". <\/span><a href=\"https:\/\/www.eurekalert.org\/news-releases\/1034374\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Menon a d\u00e9clar\u00e9<\/span><\/a><span style=\"font-weight: 400;\">L'objectif de l'\u00e9tude est de faire progresser notre compr\u00e9hension des vuln\u00e9rabilit\u00e9s mentales et neurologiques propres \u00e0 chaque sexe.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Par exemple, nous savons que les femmes sont presque deux fois plus susceptibles que les hommes de recevoir un diagnostic de d\u00e9pression, alors que les hommes sont plus susceptibles de recevoir un diagnostic de TDAH.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">D'autres maladies mentales comme les troubles de la personnalit\u00e9, la bipolarit\u00e9 et la schizophr\u00e9nie se manifestent \u00e9galement diff\u00e9remment chez les hommes et les femmes.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">L'identification et la classification pr\u00e9cises des diff\u00e9rences entre l'anatomie c\u00e9r\u00e9brale masculine et f\u00e9minine sont essentielles pour comprendre s'il existe une explication biologique.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Voici six \u00e9tapes pour d\u00e9crire le fonctionnement de l'\u00e9tude :<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">L'\u00e9tude a port\u00e9 sur les diff\u00e9rences de fonctionnement du cerveau li\u00e9es au sexe, qui sont cruciales pour comprendre les impacts comportementaux et les conditions de sant\u00e9 mentale, en analysant les donn\u00e9es d'IRM fonctionnelle (IRMf) d'environ 1 500 jeunes adultes.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">L'IA avanc\u00e9e, en particulier un r\u00e9seau neuronal profond spatiotemporel (stDNN), a \u00e9t\u00e9 utilis\u00e9e pour examiner les scanners c\u00e9r\u00e9braux, r\u00e9v\u00e9lant des mod\u00e8les distincts dans l'organisation des cerveaux masculins et f\u00e9minins.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ce mod\u00e8le d'IA, plus de 90%, a fait preuve d'une pr\u00e9cision impressionnante pour distinguer les cerveaux masculins des cerveaux f\u00e9minins sur la base de la dynamique fonctionnelle, mettant en \u00e9vidence son efficacit\u00e9 sur plusieurs sessions et cohortes ind\u00e9pendantes.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Des r\u00e9seaux c\u00e9r\u00e9braux cl\u00e9s, tels que le r\u00e9seau du mode par d\u00e9faut, le striatum et le syst\u00e8me limbique, ont montr\u00e9 des diff\u00e9rences significatives entre les sexes, avec des tailles d'effet sup\u00e9rieures \u00e0 1,5, ce qui indique des distinctions solides dans l'organisation du cerveau.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">L'utilisation de techniques d'IA explicable (XAI) a permis d'identifier les caract\u00e9ristiques c\u00e9r\u00e9brales sp\u00e9cifiques responsables de ces diff\u00e9rences, et ces caract\u00e9ristiques pourraient permettre de pr\u00e9dire les profils cognitifs propres \u00e0 chaque sexe.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ces r\u00e9sultats remettent en question les croyances ant\u00e9rieures concernant un spectre continu d'organisation c\u00e9r\u00e9brale entre hommes et femmes, en soulignant que le sexe est un facteur fondamental de la structure et de la fonction c\u00e9r\u00e9brales, avec des implications pour les approches m\u00e9dicales personnalis\u00e9es dans le traitement des troubles mentaux et neurologiques.<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Les chercheurs ont poursuivi leurs recherches en se demandant s'ils pouvaient pr\u00e9dire les performances des individus dans des t\u00e2ches cognitives sur la base des caract\u00e9ristiques c\u00e9r\u00e9brales sexosp\u00e9cifiques qu'ils avaient identifi\u00e9es.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pour ce faire, ils ont cr\u00e9\u00e9 deux mod\u00e8les d'IA sp\u00e9cialis\u00e9s : l'un con\u00e7u pour pr\u00e9dire les capacit\u00e9s cognitives des hommes et l'autre pour celles des femmes. Ces mod\u00e8les s'appuient sur les sch\u00e9mas c\u00e9r\u00e9braux distincts li\u00e9s au sexe que l'\u00e9quipe avait pr\u00e9c\u00e9demment mis en \u00e9vidence.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Le succ\u00e8s de ces mod\u00e8les est notable. Le mod\u00e8le con\u00e7u pour les hommes a permis de pr\u00e9dire avec pr\u00e9cision leurs performances cognitives, mais il n'a pas fonctionn\u00e9 pour les femmes, et vice versa. Cela sugg\u00e8re fortement que les diff\u00e9rences fonctionnelles dans l'organisation du cerveau entre les sexes ont un impact r\u00e9el sur le comportement et les capacit\u00e9s cognitives.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">M. Menon a expliqu\u00e9 l'importance de ces r\u00e9sultats : \"Ces mod\u00e8les ont tr\u00e8s bien fonctionn\u00e9 parce que nous avons r\u00e9ussi \u00e0 s\u00e9parer les sch\u00e9mas c\u00e9r\u00e9braux entre les sexes\", a-t-il expliqu\u00e9.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Cette s\u00e9paration a permis de mieux comprendre comment le fait de n\u00e9gliger les diff\u00e9rences entre les sexes dans l'organisation du cerveau peut conduire \u00e0 manquer des \u00e9l\u00e9ments cruciaux qui contribuent aux troubles neuropsychiatriques.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">M. Menon a \u00e9galement soulign\u00e9 le potentiel plus large de son mod\u00e8le d'IA. Au-del\u00e0 de l'exploration des diff\u00e9rences entre les sexes, le mod\u00e8le peut \u00eatre appliqu\u00e9 \u00e0 diverses questions sur la connectivit\u00e9 c\u00e9r\u00e9brale et sa relation avec les fonctions cognitives ou les comportements. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Le r\u00f4le de l'IA dans les neurosciences est bien \u00e9tabli. Une \u00e9tude r\u00e9cente a utilis\u00e9 l'apprentissage automatique pour <a href=\"https:\/\/dailyai.com\/fr\/2023\/10\/mindeye-retrieves-and-reconstructs-images-from-brain-scans\/\">R\u00e9cup\u00e9rer des images d'IRM<\/a>et un autre a utilis\u00e9 des cellules c\u00e9r\u00e9brales pour effectuer des <a href=\"https:\/\/dailyai.com\/fr\/2023\/12\/researchers-perform-ai-speech-recognition-with-human-brain-cells\/\">les t\u00e2ches de reconnaissance vocale.<\/a> <\/span><\/p>\n<p><span style=\"font-weight: 400;\">L'IA a \u00e9galement \u00e9t\u00e9 utilis\u00e9e pour <a href=\"https:\/\/dailyai.com\/fr\/2023\/10\/ai-can-diagnose-schizophrenia-by-analyzing-speech-patterns\/\">analyser les mod\u00e8les de discours<\/a> chez les personnes atteintes de schizophr\u00e9nie et d\u00e9veloppent des <a href=\"https:\/\/dailyai.com\/fr\/2024\/02\/researchers-develop-an-immersive-ai-therapy-system-named-xaia\/\">nouveaux avatars th\u00e9rapeutiques en 3D<\/a>.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00c0 l'avenir, il sera probablement possible de \"lire dans les pens\u00e9es\" d'une personne en temps r\u00e9el en <a href=\"https:\/\/dailyai.com\/fr\/2023\/08\/ai-mind-reading-medical-breakthrough-or-step-towards-dystopia\/\">Application de mod\u00e8les ML aux donn\u00e9es neurologiques<\/a>.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">L'\u00e9quipe de Stanford a l'intention de rendre son mod\u00e8le accessible \u00e0 la communaut\u00e9 des chercheurs afin d'encourager la poursuite des recherches sur les maladies mentales et les troubles de l'apprentissage.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">L'objectif de M. Menon est de faire en sorte que ces outils d'IA puissent comprendre et relever les d\u00e9fis auxquels les individus sont confront\u00e9s en raison de ces diff\u00e9rences c\u00e9r\u00e9brales.<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Des mod\u00e8les d'imagerie c\u00e9r\u00e9brale sophistiqu\u00e9s pourraient \u00e9ventuellement contribuer \u00e0 l'av\u00e8nement d'une nouvelle \u00e8re de psychiatrie de pr\u00e9cision. Comme le r\u00e9sume Menon, \"nos mod\u00e8les d'IA ont une tr\u00e8s large applicabilit\u00e9\".<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Le centre m\u00e9dical de l'universit\u00e9 de Stanford a utilis\u00e9 l'IA pour d\u00e9tecter les diff\u00e9rences structurelles entre les cerveaux masculins et f\u00e9minins.  L'\u00e9tude a permis d'identifier le sexe des individus avec une pr\u00e9cision de plus de 90% sur la base des scanners de l'activit\u00e9 c\u00e9r\u00e9brale, jetant ainsi la lumi\u00e8re sur le sujet longtemps d\u00e9battu des diff\u00e9rences structurelles sp\u00e9cifiques au sexe dans le cerveau. La recherche, publi\u00e9e dans les Proceedings of the National Academy of Sciences (PNAS), indique que ces diff\u00e9rences am\u00e9lioreront notre compr\u00e9hension et notre traitement des troubles neuropsychiatriques qui se manifestent de mani\u00e8re distincte chez les femmes et les hommes. Le Dr Vinod Menon, directeur du Stanford Cognitive and Systems Neuroscience Laboratory, a expliqu\u00e9 l'importance de reconna\u00eetre les diff\u00e9rences entre les sexes dans le cerveau.  \"Le sexe<\/p>","protected":false},"author":2,"featured_media":10219,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[331],"class_list":["post-10218","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ethics","tag-neuroscience"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Stanford AI model accurately differentiates male and female brains | DailyAI<\/title>\n<meta name=\"description\" content=\"Stanford University Medical Center used AI to detect structural differences in male and female brains.\u00a0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dailyai.com\/fr\/2024\/02\/stanford-ai-model-accurately-differentiates-male-and-female-brains\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Stanford AI model accurately differentiates male and female brains | DailyAI\" \/>\n<meta property=\"og:description\" content=\"Stanford University Medical Center used AI to detect structural differences in male and female brains.\u00a0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dailyai.com\/fr\/2024\/02\/stanford-ai-model-accurately-differentiates-male-and-female-brains\/\" \/>\n<meta property=\"og:site_name\" content=\"DailyAI\" \/>\n<meta property=\"article:published_time\" content=\"2024-02-20T21:28:25+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-02-20T21:57:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/dailyai.com\/wp-content\/uploads\/2024\/02\/shutterstock_719796733.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"667\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Sam Jeans\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@DailyAIOfficial\" \/>\n<meta name=\"twitter:site\" content=\"@DailyAIOfficial\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Sam Jeans\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"NewsArticle\",\"@id\":\"https:\\\/\\\/dailyai.com\\\/2024\\\/02\\\/stanford-ai-model-accurately-differentiates-male-and-female-brains\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/2024\\\/02\\\/stanford-ai-model-accurately-differentiates-male-and-female-brains\\\/\"},\"author\":{\"name\":\"Sam Jeans\",\"@id\":\"https:\\\/\\\/dailyai.com\\\/#\\\/schema\\\/person\\\/711e81f945549438e8bbc579efdeb3c9\"},\"headline\":\"Stanford AI model accurately differentiates male and female brains\",\"datePublished\":\"2024-02-20T21:28:25+00:00\",\"dateModified\":\"2024-02-20T21:57:06+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/2024\\\/02\\\/stanford-ai-model-accurately-differentiates-male-and-female-brains\\\/\"},\"wordCount\":727,\"publisher\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/2024\\\/02\\\/stanford-ai-model-accurately-differentiates-male-and-female-brains\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/dailyai.com\\\/wp-content\\\/uploads\\\/2024\\\/02\\\/shutterstock_719796733.jpg\",\"keywords\":[\"Neuroscience\"],\"articleSection\":[\"Ethics &amp; 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