{"id":7885,"date":"2016-11-17T00:00:00","date_gmt":"2016-11-16T23:00:00","guid":{"rendered":"https:\/\/idibell.cat\/blog\/2016\/11\/17\/com-respon-el-cervell-de-les-persones-a-qui-no-els-agrada-la-musica\/"},"modified":"2020-05-13T19:47:01","modified_gmt":"2020-05-13T17:47:01","slug":"com-respon-el-cervell-de-les-persones-a-qui-no-els-agrada-la-musica","status":"publish","type":"post","link":"https:\/\/idibell.cat\/2016\/11\/com-respon-el-cervell-de-les-persones-a-qui-no-els-agrada-la-musica\/","title":{"rendered":"Com respon el cervell de les persones a qui no els agrada la m\u00fasica?"},"content":{"rendered":"

Investigadors del grup de Cognici\u00f3 i Plasticitat Cerebral de l\u2019Institut d\u2019Investigaci\u00f3 Biom\u00e8dica de Bellvitge<\/p>\n

i de la Universitat de Barcelona (IDIBELL-UB), en col\u00b7laboraci\u00f3 amb investigadors de la Universitat de McGill (Montr\u00e9al), han publicat un nou estudi en qu\u00e8 es determinen els mecanismes cerebrals que expliquen la manca de sensibilitat a la m\u00fasica.<\/p>\n

L\u2019estudi, publicat a la revista PNAS, dona pistes sobre la import\u00e0ncia de la m\u00fasica a nivell evolutiu en base a la connexi\u00f3 entre les \u00e0rees auditives i emocionals del cervell. <\/p>\n

Malgrat que escoltar m\u00fasica es considera com una activitat gratificant a escala universal, al voltant d\u2019un 3-5% de la poblaci\u00f3 sana no experimenta sensacions plaents en resposta a cap tipus de m\u00fasica. Aquesta condici\u00f3 que es coneix amb el nom d\u2019anhedonia musical espec\u00edfica. \u201cLes persones anhed\u00f2niques no tenen problemes per percebre i processar correctament la informaci\u00f3 continguda en una melodia (com ara intervals o ritmes) i presenten una resposta de plaer normal davant altre tipus d\u2019est\u00edmuls agradables (com per exemple, els diners), per\u00f2 no gaudeixen dels est\u00edmuls musicals\u201d, explica la No\u00e8lia Mart\u00ednez-Molina, investigadora del grup IDIBELL-UB i autora principal de l\u2019estudi. Tot i que des de fa uns anys es coneix l\u2019exist\u00e8ncia d\u2019aquest fenomen, no se sabia quin era el motiu pel qual es produ\u00efa. <\/p>\n

En l\u2019estudi, els investigadors van estudiar 45 voluntaris sans utilitzant imatges de resson\u00e0ncia magn\u00e8tica funcional (fMRI). Els participants es van dividir en tres grups en funci\u00f3 de la puntuaci\u00f3 obtinguda en un q\u00fcestionari desenvolupat pel mateix grup de recerca, el Barcelona Music Reward Questionnaire (BMRQ, disponible online a www.brainvitge.org\/bmrq.php<\/a>). Durant la sessi\u00f3 de fMRI, els participants havien d\u2019escoltar fragments de can\u00e7ons del g\u00e8nere cl\u00e0ssic i proporcionar valors de plaer en una escala de l\u20191 al 4 a temps real. Per controlar la resposta cerebral davant d\u2019altres tipus de recompenses, els participants tamb\u00e9 havien de jugar en una tasca d\u2019apostes monet\u00e0ries en la que podien guanyar o perdre diners reals. <\/p>\n

Els resultats varen mostrar que la disminuci\u00f3 de resposta plaent davant la m\u00fasica dels participants amb anhedonia musical est\u00e0 relacionada amb una reducci\u00f3 en l\u2019activitat del nucli accumbens, una estructura subcortical clau del sistema de recompensa. Per contra, l\u2019activitat d\u2019aquesta estructura es mant\u00e9 davant d\u2019altres refor\u00e7adors, com els diners guanyats en la tasca d\u2019apostes. <\/p>\n

\u201cResulta interessant considerar la import\u00e0ncia evolutiva de la connexi\u00f3 entre les \u00e0rees auditives, corticals, i el sistema m\u00e9s primitiu d\u2019avaluaci\u00f3 emocional, subcortical\u201d, comenta la investigadora. Aquesta connexi\u00f3 \u00e9s molt clara en les persones hed\u00f2niques musicals \u2013 les que gaudeixen amb la m\u00fasica – i en canvi es troba disminu\u00efda en els anhed\u00f2nics. \u201cEl lligam entre \u00e0rees assegura que la m\u00fasica sigui experimentada com quelcom molt gratificant, i alhora assegura la seva import\u00e0ncia a nivell evolutiu, fins i tot quan no sembla evident quin \u00e9s el guany biol\u00f2gic d\u2019aquesta producci\u00f3 cultural\u201d.<\/p>\n","protected":false},"excerpt":{"rendered":"

Investigadors del grup de Cognici\u00f3 i Plasticitat Cerebral de l\u2019Institut d\u2019Investigaci\u00f3 Biom\u00e8dica de Bellvitge i de la Universitat de Barcelona (IDIBELL-UB), en col\u00b7laboraci\u00f3 amb investigadors de la Universitat de McGill (Montr\u00e9al), han publicat un nou estudi en qu\u00e8 es determinen els mecanismes cerebrals que expliquen la manca de sensibilitat a la m\u00fasica. L\u2019estudi, publicat a […]<\/p>\n","protected":false},"author":6,"featured_media":10716,"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-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-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-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-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-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-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"publishpress_future_action":{"enabled":false,"date":"2024-05-10 10:07:06","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"category"},"_links":{"self":[{"href":"https:\/\/idibell.cat\/wp-json\/wp\/v2\/posts\/7885"}],"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=7885"}],"version-history":[{"count":0,"href":"https:\/\/idibell.cat\/wp-json\/wp\/v2\/posts\/7885\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/idibell.cat\/wp-json\/wp\/v2\/media\/10716"}],"wp:attachment":[{"href":"https:\/\/idibell.cat\/wp-json\/wp\/v2\/media?parent=7885"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idibell.cat\/wp-json\/wp\/v2\/categories?post=7885"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idibell.cat\/wp-json\/wp\/v2\/tags?post=7885"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}