{"id":75172,"date":"2018-03-09T23:20:18","date_gmt":"2018-03-09T23:20:18","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/analisis-neurofisiologico-y-cognitivo-del-cambio-de-tarea\/"},"modified":"2018-03-09T23:20:18","modified_gmt":"2018-03-09T23:20:18","slug":"analisis-neurofisiologico-y-cognitivo-del-cambio-de-tarea","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/psicologia\/analisis-neurofisiologico-y-cognitivo-del-cambio-de-tarea\/","title":{"rendered":"An\u00e1lisis neurofisiol\u00f3gico y cognitivo del cambio de tarea"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jos\u00e9 Antonio Peria\u00f1ez Morales <\/strong><\/h2>\n<p>Los modelos actuales de la cognici\u00f3n humana plantean la distinci\u00f3n entre dos mecanismos de control cognitivo, que pueden medirse mediante paradigmas experimentales distintos (paradigmas de distracci\u00f3n y de orientaci\u00f3n espacial  de la atenci\u00f3n), y cuyos substratos neuroanat\u00f3micos implican redes cerebrales parcialmente segregadas. La red fronto-parietal dorsal estar\u00eda implicada en los mecanismos de controlo top-down durante la orientaci\u00f3n voluntaria de la  atenci\u00f3n en el espacio. La red fronto-parietal ventral estar\u00eda involucrada en los mecanismos de control involuntario o bottom-up durante la ocurrencia de distractores. Sin embargo, recientes evidencias conductuales y electrofisiol\u00f3gicas procedentes de los paradigmas de \u00abcambio de tarea\u00bb han desvelado la existencia de un solapamiento substancial entre las regiones cerebrales involucradas en el procesamiento de distractores novedosos, y aquellas \u00e1reas responsables del procesamiento de est\u00edmulos familiares que inducen cambios de tarea. la respuesta el\u00e9ctrica cerebral de los potenciales evocados denominada componente p3a ser\u00eda el m\u00e1ximo representante de la activaci\u00f3n de esta red. el objetivo del presente trabajo de investigaci\u00f3n fue describir los correlatos neuroanat\u00f3micos del cambio de tarea para confirmar la existencia de tal solapamiento. El segundo objetivo consisti\u00f3 en esclarecer el tipo de operaciones cognitivas que podr\u00edan explicar la activaci\u00f3n de esta red en ambas circunstancias. en el primer experimento, la gran sensibilidad espacio-temporal de la t\u00e9cnica de la magnetoencefalograf\u00eda a los cambios r\u00e1pidos en la actividad del cerebro, permiti\u00f3 describir la implicaci\u00f3n de una red fronto-parietal ventral durante el cambio de tarea en la que participaron estructuras como la circunvoluci\u00f3n frontal inferior (100-300 ms), la corteza cingulada anterior (200-300 y 400-500 ms) y la circunvoluci\u00f3n supramarginal (300-400 y 500-600 ms). En el segundo experimento, la<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>An\u00e1lisis neurofisiol\u00f3gico y cognitivo del cambio de tarea<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 An\u00e1lisis neurofisiol\u00f3gico y cognitivo del cambio de tarea <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jos\u00e9 Antonio Peria\u00f1ez Morales <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Complutense de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 29\/06\/2005<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Francisco Barcel\u00f3 Galindo<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: tom\u00e1s Ortiz alonso <\/li>\n<li>mateu Servera barcel\u00f3 (vocal)<\/li>\n<li>marcos Rios lago (vocal)<\/li>\n<li> Amenedo losada Mar\u00eda Elena (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jos\u00e9 Antonio Peria\u00f1ez Morales Los modelos actuales de la cognici\u00f3n humana plantean la distinci\u00f3n entre dos mecanismos [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","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":"","adv-header-id-meta":"","stick-header-meta":"","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":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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