{"id":8193,"date":"2023-12-11T20:18:10","date_gmt":"2023-12-11T20:18:10","guid":{"rendered":"https:\/\/dailyai.com\/?p=8193"},"modified":"2023-12-19T12:48:50","modified_gmt":"2023-12-19T12:48:50","slug":"researchers-perform-ai-speech-recognition-with-human-brain-cells","status":"publish","type":"post","link":"https:\/\/dailyai.com\/sv\/2023\/12\/researchers-perform-ai-speech-recognition-with-human-brain-cells\/","title":{"rendered":"Forskare utf\u00f6r AI-taligenk\u00e4nning med m\u00e4nskliga hj\u00e4rnceller"},"content":{"rendered":"<p><b>Kluster av m\u00e4nskliga hj\u00e4rnceller som odlats i petrisk\u00e5lar har integrerats med datorer f\u00f6r att uppn\u00e5 en grundl\u00e4ggande niv\u00e5 av taligenk\u00e4nning.<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Feng Guo, fr\u00e5n Indiana University Bloomington, f\u00f6rklarar studien, som publicerades i <\/span><a href=\"https:\/\/www.nature.com\/articles\/s41928-023-01069-w.epdf?sharing_token=T-aMg6tvH4aBthLTzh-45tRgN0jAjWel9jnR3ZoTv0M8M4oYFZwXw3ADmbAHb74edPY2vKOF1O-GEmUziwBdM-vR3K38pYozKcXIfrBfOwezxxxCMVJjPgvB1jSiQuvawRifhPa4pdlVGDia9NTf1GofvefwrX1ECScxKlX9FtIv05Q_ufB0CKlKfoPrZ8TINf05LHUsv7GMAvznaGLFNyZO93bBDM4q3NiWylmEG2Y%3D&amp;tracking_referrer=www.newscientist.com\"><span style=\"font-weight: 400;\">Naturelektronik<\/span><\/a><span style=\"font-weight: 400;\">,\"Detta \u00e4r en prelimin\u00e4r demonstration f\u00f6r att visa att konceptet \u00e4r genomf\u00f6rbart. <\/span><span style=\"font-weight: 400;\">Vi har fortfarande en l\u00e5ng resa framf\u00f6r oss.\" <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Guo pekar p\u00e5 tv\u00e5 prim\u00e4ra utmaningar i konventionell AI som denna form av biologisk AI f\u00f6rs\u00f6ker l\u00f6sa: h\u00f6g energif\u00f6rbrukning och de inneboende begr\u00e4nsningarna i kiselchip, som deras distinkta funktioner f\u00f6r bearbetning och informationslagring.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Guos team, tillsammans med andra, till exempel australiensiska Cortical Labs, som <a href=\"https:\/\/www.ucl.ac.uk\/news\/2022\/oct\/human-brain-cells-dish-learn-play-pong\">utbildade hj\u00e4rnceller f\u00f6r att spela Pong 2022<\/a>Som en potentiell l\u00f6sning p\u00e5 dessa utmaningar unders\u00f6ker vi biocomputing med levande nervceller.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Dessa hj\u00e4rnorganoider - sj\u00e4lvorganiserade, tredimensionella v\u00e4vnadskulturer som liknar minihj\u00e4rnor - v\u00e4xer fram ur stamceller under specifika tillv\u00e4xtf\u00f6rh\u00e5llanden.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">De kan v\u00e4xa till n\u00e5gra millimeter i diameter och inneh\u00e5lla upp till 100 miljoner nervceller. Som j\u00e4mf\u00f6relse kan n\u00e4mnas att en m\u00e4nsklig hj\u00e4rna har cirka 100 miljarder nervceller. Organoiderna placeras ovanp\u00e5 en mikroelektrodmatris, som b\u00e5de stimulerar organoiden och registrerar nervcellernas aktivitet. Guos team kallar denna uppst\u00e4llning f\u00f6r \"Brainoware\".<\/span><\/p>\n<p><span style=\"font-weight: 400;\">I grund och botten \u00e4r Brainoware en ny form av AI som skiljer sig fr\u00e5n vad vi vanligtvis ser i datorer och smartphones. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">I st\u00e4llet f\u00f6r att anv\u00e4nda vanliga chips har forskarna skapat ett litet kluster av <a href=\"https:\/\/dailyai.com\/sv\/2023\/08\/exploring-impact-of-the-human-brain-project-hbp-on-science-and-ai\/\">m\u00e4nskliga hj\u00e4rnceller<\/a> - Hj\u00e4rnorganoiden. Denna lilla \"minihj\u00e4rna\" odlas i ett labb fr\u00e5n stamceller och den kan utf\u00f6ra vissa grundl\u00e4ggande uppgifter som vi vanligtvis f\u00f6rknippar med AI, som att k\u00e4nna igen talm\u00f6nster.<\/span><\/p>\n<figure id=\"attachment_8194\" aria-describedby=\"caption-attachment-8194\" style=\"width: 652px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-8194 size-full\" src=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/12\/cells.png\" alt=\"\" width=\"652\" height=\"589\" srcset=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/12\/cells.png 652w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/12\/cells-300x271.png 300w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/12\/cells-370x334.png 370w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/12\/cells-20x18.png 20w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/12\/cells-53x48.png 53w\" sizes=\"auto, (max-width: 652px) 100vw, 652px\" \/><figcaption id=\"caption-attachment-8194\" class=\"wp-caption-text\">A) Ett diagram \u00f6ver \"Brainoware\"-systemet, som visar en hj\u00e4rnorganoid (en labbodlad minihj\u00e4rna) ansluten till en enhet som registrerar och stimulerar dess elektriska aktivitet. B) En mikroskopisk bild av hj\u00e4rnorganoiden, f\u00e4rgad f\u00f6r att framh\u00e4va dess olika celltyper, t.ex. mogna neuroner, astrocyter, neuroner i tidigt stadium och progenitorceller, som visar dess komplexa 3D-struktur. K\u00e4lla: <a href=\"https:\/\/www.nature.com\/articles\/s41928-023-01069-w.epdf?sharing_token=T-aMg6tvH4aBthLTzh-45tRgN0jAjWel9jnR3ZoTv0M8M4oYFZwXw3ADmbAHb74edPY2vKOF1O-GEmUziwBdM-vR3K38pYozKcXIfrBfOwezxxxCMVJjPgvB1jSiQuvawRifhPa4pdlVGDia9NTf1GofvefwrX1ECScxKlX9FtIv05Q_ufB0CKlKfoPrZ8TINf05LHUsv7GMAvznaGLFNyZO93bBDM4q3NiWylmEG2Y%3D&amp;tracking_referrer=www.newscientist.com\">Naturelektronik<\/a>.<\/figcaption><\/figure>\n<h2><span style=\"font-weight: 400;\">S\u00e5 h\u00e4r fungerar det<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">\u00a0Hj\u00e4rnorganoiden placeras p\u00e5 en speciell apparat som kan skicka och l\u00e4sa av elektriska signaler. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Genom att g\u00f6ra detta kan forskarna kommunicera med organoiden, ungef\u00e4r som att l\u00e4ra den att reagera p\u00e5 vissa m\u00f6nster eller inmatningar. I studien tr\u00e4nade de den att k\u00e4nna igen olika r\u00f6ster fr\u00e5n ljudklipp.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">En av de mest anm\u00e4rkningsv\u00e4rda aspekterna av Brainware \u00e4r att den l\u00e4r sig och anpassar sig. Precis som en m\u00e4nsklig hj\u00e4rna blir b\u00e4ttre p\u00e5 uppgifter med \u00f6vning, f\u00f6rb\u00e4ttrar organoiden sin f\u00f6rm\u00e5ga att k\u00e4nna igen r\u00f6ster ju mer den uts\u00e4tts f\u00f6r dem.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Det h\u00e4r tar oss ett steg n\u00e4rmare att skapa AI som fungerar mer som den m\u00e4nskliga hj\u00e4rnan, som \u00e4r exceptionellt effektiv och inte beh\u00f6ver mycket energi f\u00f6r att fungera (ungef\u00e4r som en liten gl\u00f6dlampa).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Det finns dock utmaningar. Att odla dessa hj\u00e4rnorganoider \u00e4r knepigt - de \u00e4r sv\u00e5ra att skapa, sv\u00e5ra att replikera konsekvent och varar inte l\u00e4nge, men teamet arbetar p\u00e5 l\u00f6sningar.\u00a0<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Brainowares prestanda<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">I ett experiment med o\u00f6vervakad taligenk\u00e4nning tr\u00e4nades organoiderna att urskilja en enda r\u00f6st fr\u00e5n 240 ljudinspelningar av \u00e5tta personer som uttalade japanska vokalljud. Dessa ljud omvandlades till signalsekvenser och rumsliga m\u00f6nster f\u00f6r organoiderna.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Inledningsvis visade organoiderna en noggrannhet p\u00e5 cirka 30 till 40%, vilket f\u00f6rb\u00e4ttrades till 70 till 80% efter tv\u00e5 dagars tr\u00e4ning.\u00a0<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Mer om studien<\/span><\/h2>\n<p><a href=\"https:\/\/dailyai.com\/sv\/2023\/08\/the-evolution-of-bio-inspired-ai-developments-and-future-direction\/\"><span style=\"font-weight: 400;\">Bioinspirerad AI<\/span><\/a><span style=\"font-weight: 400;\"> har n\u00e5gra olika former, till exempel <\/span><a href=\"https:\/\/dailyai.com\/sv\/2023\/10\/ibm-northpole-chip-promises-faster-low-energy-ai-processing\/\"><span style=\"font-weight: 400;\">neuromorfiska chip<\/span><\/a><span style=\"font-weight: 400;\"> baserad p\u00e5 biologiska neuroner. Detta g\u00e5r ett steg l\u00e4ngre genom att skapa ber\u00e4kningsarkitektur fr\u00e5n biologiska organoider.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">H\u00e4r f\u00f6ljer mer information om hur det fungerar:<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Bioinspirerad AI-h\u00e5rdvara<\/b><span style=\"font-weight: 400;\">: Studien, som publiceras i Nature Electronics, introducerar Brainoware, en ny AI-h\u00e5rdvara som anv\u00e4nder biologiska neurala n\u00e4tverk i en hj\u00e4rnorganoid. Detta inneb\u00e4r ett fundamentalt skifte fr\u00e5n traditionella kiselchips som inspirerats av hj\u00e4rnan, och erbjuder en mer autentisk emulering av hj\u00e4rnans funktion.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Brainowares struktur och funktionalitet<\/b><span style=\"font-weight: 400;\">: Brainoware fungerar genom att koppla samman en hj\u00e4rnorganoid, som odlats fr\u00e5n m\u00e4nskliga pluripotenta stamceller, med en multielektrodupps\u00e4ttning med h\u00f6g densitet. Denna uppst\u00e4llning m\u00f6jligg\u00f6r b\u00e5de \u00f6verf\u00f6ring av elektriska signaler till organoiden och detektering av neurala svar. Organoiden uppvisar egenskaper som olinj\u00e4r dynamik, minne och f\u00f6rm\u00e5ga att bearbeta rumslig information.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Till\u00e4mpningar som demonstrerats i studien<\/b><span style=\"font-weight: 400;\">: Teamet har framg\u00e5ngsrikt till\u00e4mpat Brainoware i praktiska scenarier, t.ex. taligenk\u00e4nning och f\u00f6ruts\u00e4gelse av olinj\u00e4ra kaotiska ekvationer (som H\u00e9non-kartan). Detta visar Brainowares f\u00f6rm\u00e5ga att f\u00f6rb\u00e4ttra sin dataprestanda genom tr\u00e4ning, vilket understryker dess potential f\u00f6r uppgifter som kr\u00e4ver adaptiv inl\u00e4rning.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Utmaningar och begr\u00e4nsningar<\/b><span style=\"font-weight: 400;\">: Trots sitt innovativa tillv\u00e4gag\u00e5ngss\u00e4tt st\u00e5r Brainoware inf\u00f6r flera tekniska utmaningar, bland annat n\u00e4r det g\u00e4ller att generera och underh\u00e5lla hj\u00e4rnorganoider. Dessutom h\u00e4mmas potentialen av att h\u00e5rdvaran \u00e4r beroende av kringutrustning. Med andra ord beh\u00f6vs det en hel del st\u00f6dutrustning f\u00f6r att hj\u00e4rnorganen ska fungera korrekt.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Framtida inriktning och potential<\/b><span style=\"font-weight: 400;\">: Studien tyder p\u00e5 att Brainoware kan utvecklas till ett mer effektivt och sofistikerat system om man g\u00f6r framsteg inom organoidodling och l\u00f6ser praktiska problem i samband med organoider. Detta skulle kunna leda till AI-h\u00e5rdvara som mer efterliknar den m\u00e4nskliga hj\u00e4rnans funktion, vilket potentiellt kan s\u00e4nka energif\u00f6rbrukningen.<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">I framtiden kan dessa typer av biodatorsystem komma att utf\u00f6ra AI-uppgifter mer energieffektivt \u00e4n traditionella kiselbaserade chip.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00c5rets utveckling inom bioinspirerad AI \u00e4r mycket lovande n\u00e4r det g\u00e4ller att hj\u00e4lpa AI-industrin att \u00f6vervinna gr\u00e4nserna f\u00f6r brute-force computing och skapa energieffektiva tekniker som \u00e4r lika eleganta som naturen. <\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Kluster av m\u00e4nskliga hj\u00e4rnceller som odlats i petrisk\u00e5lar har integrerats med datorer f\u00f6r att uppn\u00e5 en grundl\u00e4ggande niv\u00e5 av taligenk\u00e4nning. Feng Guo, fr\u00e5n Indiana University Bloomington, f\u00f6rklarar studien, som publicerats i Nature Electronics, p\u00e5 f\u00f6ljande s\u00e4tt: \"Det h\u00e4r \u00e4r en prelimin\u00e4r demonstration som visar att konceptet \u00e4r genomf\u00f6rbart. Det \u00e4r fortfarande en avsev\u00e4rd resa framf\u00f6r oss.\" Guo pekar p\u00e5 tv\u00e5 prim\u00e4ra utmaningar i konventionell AI som denna form av biologisk AI f\u00f6rs\u00f6ker l\u00f6sa: h\u00f6g energif\u00f6rbrukning och de inneboende begr\u00e4nsningarna i kiselchip, som deras distinkta bearbetnings- och informationslagringsfunktioner. Guos team, tillsammans med andra, till exempel australiensiska Cortical Labs,<\/p>","protected":false},"author":2,"featured_media":8195,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[84],"tags":[350,203,101],"class_list":["post-8193","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-bio-inspired-ai","tag-biotech","tag-medtech"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Researchers perform AI speech recognition with human brain cells | DailyAI<\/title>\n<meta name=\"description\" content=\"Clusters of human brain cells cultivated in Petri dishes have been integrated with computers to achieve a fundamental level of speech recognition.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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