{"id":7158,"date":"2023-11-10T08:27:53","date_gmt":"2023-11-10T07:27:53","guid":{"rendered":"https:\/\/blog.caixaresearch.org\/?p=7158"},"modified":"2023-11-10T08:27:53","modified_gmt":"2023-11-10T07:27:53","slug":"com-recorda-el-cervell","status":"publish","type":"post","link":"https:\/\/blog.caixaresearch.org\/ca\/com-recorda-el-cervell\/","title":{"rendered":"Nous espais matem\u00e0tics per veure com recorda el cervell"},"content":{"rendered":"<p><iframe loading=\"lazy\" title=\"News from the lab Liset M. de la Prida | CaixaResearch\" src=\"https:\/\/www.youtube.com\/embed\/Ttgslf4PBNI\" width=\"400\" height=\"225\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p><span style=\"font-weight: 400;\">En aquesta edici\u00f3 de <\/span><b><i>News from the lab<\/i><\/b><span style=\"font-weight: 400;\">, la investigadora CaixaResearch <\/span><a href=\"https:\/\/caixaresearch.org\/ca\/convocatoria-caixaresearch-investigacio-salut-2021-projecte-estrategies-trastorns-neurologics\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Liset M. de la Prida<\/span><\/a><span style=\"font-weight: 400;\"> i el seu equip de l\u2019Instituto Cajal (IC-CSIC) ens presenten una nova t\u00e8cnica per visualitzar <\/span><b>com recordem<\/b><span style=\"font-weight: 400;\">. El treball publicat a<\/span> <a href=\"https:\/\/www.nature.com\/articles\/s41593-023-01471-9\" target=\"_blank\" rel=\"noopener\"><i><span style=\"font-weight: 400;\">Nature Neuroscience<\/span><\/i><\/a><span style=\"font-weight: 400;\">, liderat pel CSIC, \u00e9s el resultat del projecte <\/span><b>DeepCode<\/b><span style=\"font-weight: 400;\">, que t\u00e9 el suport de la convocat\u00f2ria CaixaResearch d\u2019Investigaci\u00f3 en Salut de la Fundaci\u00f3 \u201dla Caixa\u201d.<\/span><\/p>\n<p>&nbsp;<\/p>\n<div id=\"attachment_7162\" style=\"width: 410px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7162\" class=\"wp-image-7162\" src=\"https:\/\/blog.caixaresearch.org\/wp-content\/uploads\/2023\/11\/Liset-M-de-la-Prida-scaled.jpg\" alt=\"\" width=\"400\" height=\"225\" srcset=\"https:\/\/blog.caixaresearch.org\/wp-content\/uploads\/2023\/11\/Liset-M-de-la-Prida-scaled.jpg 2560w, https:\/\/blog.caixaresearch.org\/wp-content\/uploads\/2023\/11\/Liset-M-de-la-Prida-300x169.jpg 300w, https:\/\/blog.caixaresearch.org\/wp-content\/uploads\/2023\/11\/Liset-M-de-la-Prida-1024x576.jpg 1024w, https:\/\/blog.caixaresearch.org\/wp-content\/uploads\/2023\/11\/Liset-M-de-la-Prida-768x432.jpg 768w, https:\/\/blog.caixaresearch.org\/wp-content\/uploads\/2023\/11\/Liset-M-de-la-Prida-1536x864.jpg 1536w, https:\/\/blog.caixaresearch.org\/wp-content\/uploads\/2023\/11\/Liset-M-de-la-Prida-2048x1152.jpg 2048w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><p id=\"caption-attachment-7162\" class=\"wp-caption-text\"><em>Liset M. de la Prida i Enrique Rodr\u00edguez Sebasti\u00e1n, investigador predoctoral i primer autor de l\u2019estudi. Cr\u00e8dit: C\u00e9sar Hern\u00e1ndez, del CSIC Comunicaci\u00f3<\/em><\/p><\/div>\n<p><span style=\"font-weight: 400;\">L\u2019hipot\u00e0lem \u00e9s la regi\u00f3 del cervell on es guarda la mem\u00f2ria epis\u00f2dica, \u00e9s a dir, el que recordem de les experi\u00e8ncies viscudes. Els cient\u00edfics fa anys que intenten entendre com es produeix fisiol\u00f2gicament aquest fenomen. Se sap que quan associem una situaci\u00f3 que vivim en el present amb un record del passat es produeixen una s\u00e8rie d\u2019<\/span><b>esdeveniments o patrons d\u2019activaci\u00f3 neuronal<\/b><span style=\"font-weight: 400;\"> que representen \u00abtraces\u00bb o \u00abpetjades\u00bb d\u2019aquestes experi\u00e8ncies pr\u00e8vies que estem recordant. S\u00f3n oscil\u00b7lacions d\u2019alta freq\u00fc\u00e8ncia anomenades <\/span><i><span style=\"font-weight: 400;\">ripples<\/span><\/i><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Fins ara, les neurones implicades en aquests patrons s\u2019estudiaven d\u2019una en una, de manera individual, a trav\u00e9s de l\u2019an\u00e0lisi de freq\u00fc\u00e8ncies. Tanmateix, les formes d\u2019ona de cada <\/span><i><span style=\"font-weight: 400;\">ripple<\/span><\/i><span style=\"font-weight: 400;\"> s\u00f3n molt variables i dif\u00edcils de classificar.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">L\u2019equip del Laboratori de Circuits Neuronals de l\u2019Instituto Cajal ha dissenyat <\/span><b>una nova estrat\u00e8gia<\/b><span style=\"font-weight: 400;\"> que permet estudiar de manera molt m\u00e9s efica\u00e7 aquests esdeveniments. Ha creat un espai matem\u00e0tic abstracte on es pot projectar <\/span><b>el comportament col\u00b7lectiu<\/b><span style=\"font-weight: 400;\"> dels <\/span><i><span style=\"font-weight: 400;\">ripples<\/span><\/i><span style=\"font-weight: 400;\"> emesos a l\u2019hipot\u00e0lem despr\u00e9s de portar a terme una determinada tasca.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Imaginem que la tasca consisteix a entrar en un museu, caminar per un passad\u00eds i veure un quadre. Aquesta experi\u00e8ncia reactivar\u00e0 una s\u00e8rie de <\/span><i><span style=\"font-weight: 400;\">ripples<\/span><\/i><span style=\"font-weight: 400;\"> o patrons neuronals, \u00abtraces\u00bb de records previs: una visita similar d\u2019anys enrere, per exemple. La situaci\u00f3 actual quedar\u00e0 aix\u00ed vinculada amb la mem\u00f2ria de la situaci\u00f3 del passat.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Els <\/span><i><span style=\"font-weight: 400;\">ripples<\/span><\/i><span style=\"font-weight: 400;\"> es representen en l\u2019espai matem\u00e0tic a trav\u00e9s de punts que <\/span><b>configuren un n\u00favol<\/b><span style=\"font-weight: 400;\"> amb una forma determinada en la qual es pot rastrejar i classificar l\u2019activitat de cada tipus neuronal espec\u00edfic implicat en la situaci\u00f3 en concret.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00ab<\/span><i><span style=\"font-weight: 400;\">Ripples<\/span><\/i><span style=\"font-weight: 400;\"> de freq\u00fc\u00e8ncies, <\/span><span style=\"font-weight: 400;\">durada o amplituds<\/span> <span style=\"font-weight: 400;\">similars<\/span><span style=\"font-weight: 400;\"> es projecten a prop, mentre que els de diferents caracter\u00edstiques ocupen localitzacions distants entre si\u00bb, explica Enrique Rodr\u00edguez Sebasti\u00e1n, investigador predoctoral i primer autor de l\u2019estudi. A trav\u00e9s d\u2019aquest m\u00e8tode de classificaci\u00f3 ser\u00e0 m\u00e9s f\u00e0cil <\/span><b>descodificar els patrons neuronals associats amb els fen\u00f2mens implicats en la mem\u00f2ria<\/b><span style=\"font-weight: 400;\"> de diferents regions de l\u2019hipot\u00e0lem. \u00abAquestes regions poden iniciar \u201ctraces\u201d de diferents continguts de mem\u00f2ria, com les que tenen m\u00e9s contingut social, com per exemple recordar qui hi havia al museu durant la visita, o d\u2019altres amb m\u00e9s contingut espacial, com ara recordar que el museu \u00e9s al costat de la casa on viu qui fa la visita\u00bb, afegeix De la Prida.<\/span><\/p>\n<div id=\"attachment_7164\" style=\"width: 410px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7164\" class=\"wp-image-7164\" src=\"https:\/\/blog.caixaresearch.org\/wp-content\/uploads\/2023\/11\/NFTL_Blog-scaled.jpg\" alt=\"\" width=\"400\" height=\"225\" srcset=\"https:\/\/blog.caixaresearch.org\/wp-content\/uploads\/2023\/11\/NFTL_Blog-scaled.jpg 2560w, https:\/\/blog.caixaresearch.org\/wp-content\/uploads\/2023\/11\/NFTL_Blog-300x169.jpg 300w, https:\/\/blog.caixaresearch.org\/wp-content\/uploads\/2023\/11\/NFTL_Blog-1024x576.jpg 1024w, https:\/\/blog.caixaresearch.org\/wp-content\/uploads\/2023\/11\/NFTL_Blog-768x432.jpg 768w, https:\/\/blog.caixaresearch.org\/wp-content\/uploads\/2023\/11\/NFTL_Blog-1536x864.jpg 1536w, https:\/\/blog.caixaresearch.org\/wp-content\/uploads\/2023\/11\/NFTL_Blog-2048x1152.jpg 2048w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><p id=\"caption-attachment-7164\" class=\"wp-caption-text\"><em>N\u00favol de ripples en 3D<\/em><\/p><\/div>\n<p><span style=\"font-weight: 400;\">Aquesta innovadora eina no solament \u00e9s una nova finestra des de la qual es pot veure com representa el cervell les viv\u00e8ncies personals, sin\u00f3 que tamb\u00e9 mostra com es modifica la mem\u00f2ria durant l\u2019aprenentatge i el son. Per\u00f2, a m\u00e9s, ser\u00e0 un gran pas endavant en <\/span><b>l\u2019estudi de desordres com la malaltia d\u2019Alzheimer i l\u2019epil\u00e8psia<\/b><span style=\"font-weight: 400;\">, en els quals els patrons d\u2019activaci\u00f3 neuronal relacionats amb la mem\u00f2ria epis\u00f2dica estan alterats.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p><iframe loading=\"lazy\" title=\"News from the lab Liset M. de la Prida | CaixaResearch\" src=\"https:\/\/www.youtube.com\/embed\/Ttgslf4PBNI\" width=\"400\" height=\"225\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>En aquesta edici\u00f3 de <i>News from the lab<\/i>, la investigadora CaixaResearch <a href=\"https:\/\/caixaresearch.org\/ca\/convocatoria-caixaresearch-investigacio-salut-2021-projecte-estrategies-trastorns-neurologics\" target=\"_blank\" rel=\"noopener\">Liset M. de la Prida<\/a> i el seu equip de l\u2019Instituto Cajal (IC-CSIC) ens presenten una nova t\u00e8cnica per visualitzar com recordem. El treball publicat a <a href=\"https:\/\/www.nature.com\/articles\/s41593-023-01471-9\" target=\"_blank\" rel=\"noopener\"><i>Nature Neuroscience<\/i><\/a>, liderat pel CSIC, \u00e9s el resultat del projecte DeepCode, que t\u00e9 el suport de la convocat\u00f2ria CaixaResearch d\u2019Investigaci\u00f3 en Salut de la Fundaci\u00f3 \u201dla Caixa\u201d.<\/p>\n<p>&nbsp;<\/p>\n<p>L\u2019hipot\u00e0lem \u00e9s la regi\u00f3 del cervell on es guarda la mem\u00f2ria epis\u00f2dica, \u00e9s a dir, el que recordem de les experi\u00e8ncies viscudes. Els cient\u00edfics fa anys que intenten entendre com es produeix fisiol\u00f2gicament aquest fenomen.<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[520,519,340],"tags":[],"class_list":["post-7158","post","type-post","status-publish","format-standard","hentry","category-divulgacio-cientifica","category-investigacio","category-sense-categoria"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Nous espais matem\u00e0tics per veure com recorda el cervell - Blog CaixaCi\u00e8ncia<\/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:\/\/blog.caixaresearch.org\/ca\/com-recorda-el-cervell\/\" \/>\n<meta property=\"og:locale\" content=\"ca_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Nous espais matem\u00e0tics per veure com recorda el cervell - Blog CaixaCi\u00e8ncia\" \/>\n<meta property=\"og:description\" content=\"En aquesta edici\u00f3 de News from the lab, la investigadora CaixaResearch Liset M. de la Prida i el seu equip de l\u2019Instituto Cajal (IC-CSIC) ens presenten una nova t\u00e8cnica per visualitzar com recordem. 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