{"id":1222,"date":"2023-06-30T19:30:15","date_gmt":"2023-06-30T17:30:15","guid":{"rendered":"https:\/\/iu1gam.ovh\/?p=1222"},"modified":"2023-06-30T19:33:55","modified_gmt":"2023-06-30T17:33:55","slug":"cervello-la-forma-conta-piu-delle-connessioni","status":"publish","type":"post","link":"https:\/\/iu1gam.ovh\/index.php\/scienze\/2023\/06\/30\/cervello-la-forma-conta-piu-delle-connessioni\/","title":{"rendered":"Cervello: la forma conta pi\u00f9 delle connessioni"},"content":{"rendered":"\n<p>Secondo uno studio pubblicato su &#8220;Nature&#8221;, i ricercatori hanno scoperto che i modelli di attivit\u00e0 cerebrale si estendono in tutto il cervello anzich\u00e9 essere confinati in specifiche regioni. Questo contraddice il concetto tradizionale secondo cui ogni capacit\u00e0 cognitiva o emotiva \u00e8 localizzata in specifiche parti del cervello. Gli scienziati hanno anche dimostrato che la forma tridimensionale del cervello, come solchi e pieghe, \u00e8 pi\u00f9 importante della connettivit\u00e0 delle cellule nervose. Questo \u00e8 stato sostenuto dalla teoria del campo neurale (NFT), che interpreta l&#8217;attivit\u00e0 cerebrale come onde che si propagano attraverso tutto il cervello, influenzate dalla sua geometria intrinseca.<\/p>\n\n\n\n<p>Per testare la validit\u00e0 della NFT, i ricercatori hanno studiato gli &#8220;eigenmodes&#8221; del cervello, che sono i modelli di vibrazione o eccitazione del sistema nervoso. Hanno confrontato la simulazione dei segnali nervosi basata sulla struttura del cervello con quella basata sulla connettivit\u00e0 neuronale, e hanno scoperto che i primi risultati corrispondevano meglio alle mappe di attivit\u00e0 cerebrale ottenute tramite la risonanza magnetica funzionale.<\/p>\n\n\n\n<p>Tuttavia, alcuni esperti sollevano alcune questioni riguardo ai risultati dello studio. L&#8217;affidabilit\u00e0 delle mappe cerebrali ottenute tramite la risonanza magnetica potrebbe essere limitata, e potrebbe essere necessario esaminare l&#8217;attivit\u00e0 cerebrale in risposta a stimoli semplici diretti a piccole aree del cervello. Nonostante ci\u00f2, la nuova teoria sottolinea l&#8217;importanza dell&#8217;anatomia del cervello, aprendo nuove opportunit\u00e0 di ricerca per comprendere come le differenze nella forma del cervello possano influenzare il comportamento e aumentare il rischio di disturbi e malattie neurologiche come la schizofrenia, la depressione e la demenza.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Secondo uno studio pubblicato su &#8220;Nature&#8221;, i ricercatori hanno scoperto che i modelli di attivit\u00e0 cerebrale si estendono in tutto il cervello anzich\u00e9 essere confinati in specifiche regioni. Questo contraddice il concetto tradizionale secondo cui ogni capacit\u00e0 cognitiva o emotiva \u00e8 localizzata in specifiche parti del cervello. Gli scienziati hanno anche dimostrato che la forma&#8230;<\/p>\n","protected":false},"author":1,"featured_media":1223,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[23,9],"tags":[],"class_list":["post-1222","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-curiosita","category-scienze"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cervello: la forma conta pi\u00f9 delle connessioni<\/title>\n<meta name=\"description\" content=\"Intrigante nuova teoria sul funzionamento del 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