El nostre cervell acumula informaci\u00f3 durant el dia per\u00f2 com l\u2019enregistra en la nostra mem\u00f2ria? Qu\u00e8 fa que aquesta mem\u00f2ria perduri en el temps? Un dels mecanismes principals \u00e9s la consolidaci\u00f3 de la mem\u00f2ria. De tot el que veiem o aprenem durant el dia, el cervell filtra quines coses oblidarem i quines recordarem. El moment \u00f2ptim per aquesta consolidaci\u00f3 \u00e9s mentre dormim. I es produeix gr\u00e0cies a la reactivaci\u00f3 de la informaci\u00f3. Investigadors del grup de Cognici\u00f3 i Plasticitat Cerebral de l\u2019Institut d\u2019Investigaci\u00f3 Biom\u00e8dica de Bellvitge (IDIBELL) i de la Universitat de Barcelona, juntament amb la Unitat d’epil\u00e8psia de l\u2019Hospital de Bellvitge han demostrat per primera vegada en humans el paper clau de l\u2019hipocamp (estructura cerebral relacionada amb la mem\u00f2ria) en els processos de reactivaci\u00f3 i consolidaci\u00f3 de la mem\u00f2ria.<\/p>\n
L\u2019estudi s\u2019ha realitzat en un grup de pacients d\u2019un tipus d\u2019epil\u00e8psia que es caracteritza per una atr\u00f2fia i alteraci\u00f3 de les neurones de l\u2019hipocamp. Aquesta alteraci\u00f3 pot ser en un dels dos hipocamps (epil\u00e8psia unilateral) o en els dos (bilateral). Mentre els pacients estaven ingressats abans de ser operats se\u2019ls va realitzar una prova per veure si la reactivaci\u00f3 durant la son de la informaci\u00f3 rebuda durant el dia produ\u00efa beneficis en la consolidaci\u00f3 de la mem\u00f2ria.<\/p>\n
L\u2019investigador Llu\u00eds Fuentemilla, coordinador de l\u2019estudi, ha explicat com es va realitzar aquest test: \u201cAbans d\u2019anar a dormir se\u2019ls presentava una s\u00e8rie de parelles de sons i imatges, per exemple: un aplaudiment corresponia a la imatge d\u2019una taula, i se\u2019ls demanava que s\u2019aprenguessin les parelles associades. Durant la nit, en una fase profunda del son, se\u2019ls repetia la meitat dels sons apresos i a primera hora del mat\u00ed se\u2019ls preguntava per les associacions\u201d. En el grup control, sense danys a l\u2019hipocamp, i en els pacients amb epil\u00e8psia unilateral (amb nom\u00e9s un dels hipocamps danyats) s\u2019observava que recordaven millor les associacions que s\u2019havien reactivat durant la nit. En canvi, en els pacients que tenien els dos hipocamps danyats no tenien cap benefici.<\/p>\n
\u201cAquesta \u00e9s la prova que demostra el paper clau que juga l\u2019hipocamp en el reactivaci\u00f3 i consolidaci\u00f3 de la mem\u00f2ria\u201d ha dit Fuentemilla. Segons han explicat Llu\u00eds Fuentemilla i J\u00falia Mir\u00f3 (neur\u00f2loga i co-autora de l\u2019estudi) aquest descobriment podria servir per una banda per experimentar amb ter\u00e0pies que incloguin la reactivaci\u00f3 de la mem\u00f2ria durant la son a pacients amb lesions cerebrals per\u00f2 tamb\u00e9 podria obrir una nova l\u00ednea de recerca sobre quins s\u00f3n els mecanismes neuronals que serveixen per fixar el que aprenem .<\/p>\n
<\/p>\n
Refer\u00e8ncia de l\u2019article<\/strong> El nostre cervell acumula informaci\u00f3 durant el dia per\u00f2 com l\u2019enregistra en la nostra mem\u00f2ria? Qu\u00e8 fa que aquesta mem\u00f2ria perduri en el temps? Un dels mecanismes principals \u00e9s la consolidaci\u00f3 de la mem\u00f2ria. De tot el que veiem o aprenem durant el dia, el cervell filtra quines coses oblidarem i quines recordarem. El moment […]<\/p>\n","protected":false},"author":6,"featured_media":19772,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1,368,340,457],"tags":[],"class_list":["post-8509","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sin-categorizar","category-cognicio-i-plasticitat-cerebral","category-neurociencies","category-p-de-neurociencies"],"publishpress_future_action":{"enabled":false,"date":"2024-09-15 00:56:48","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"category"},"_links":{"self":[{"href":"https:\/\/idibell.cat\/wp-json\/wp\/v2\/posts\/8509"}],"collection":[{"href":"https:\/\/idibell.cat\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idibell.cat\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idibell.cat\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/idibell.cat\/wp-json\/wp\/v2\/comments?post=8509"}],"version-history":[{"count":2,"href":"https:\/\/idibell.cat\/wp-json\/wp\/v2\/posts\/8509\/revisions"}],"predecessor-version":[{"id":19773,"href":"https:\/\/idibell.cat\/wp-json\/wp\/v2\/posts\/8509\/revisions\/19773"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/idibell.cat\/wp-json\/wp\/v2\/media\/19772"}],"wp:attachment":[{"href":"https:\/\/idibell.cat\/wp-json\/wp\/v2\/media?parent=8509"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idibell.cat\/wp-json\/wp\/v2\/categories?post=8509"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idibell.cat\/wp-json\/wp\/v2\/tags?post=8509"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n<\/strong>Fuentemilla, L., Mir\u00f3 J., Ripoll\u00e9s P., Vil\u00e0-Ball\u00f3 A., Juncadella M., Casta\u00f1er S., Salord N., Monasterio C., Falip M. and Antoni Rodr\u00edguez-Fornells. Hippocampus-dependent strengthening of trageted memories via reactivation during sleep in humans. Current Biology (2013) http:\/dx.doi.org\/10.1016\/j.cub.2013.07.006<\/p>\n","protected":false},"excerpt":{"rendered":"