{"id":70173,"date":"2018-03-09T23:14:41","date_gmt":"2018-03-09T23:14:41","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/correlatos-psicofisiologicos-de-la-deteccion-automatica-de-cambios-en-el-sistema-visual-humano\/"},"modified":"2018-03-09T23:14:41","modified_gmt":"2018-03-09T23:14:41","slug":"correlatos-psicofisiologicos-de-la-deteccion-automatica-de-cambios-en-el-sistema-visual-humano","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/santiago-de-compostela\/correlatos-psicofisiologicos-de-la-deteccion-automatica-de-cambios-en-el-sistema-visual-humano\/","title":{"rendered":"Correlatos psicofisiol\u00f3gicos de la detecci\u00f3n autom\u00e1tica de cambios en el sistema visual humano"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Paula Pazo \u00e1lvarez <\/strong><\/h2>\n<p>La habilidad para detectar cambios inusuales en el ambiente es una funci\u00f3n adaptativa del sistema nervioso, esencial para monitorizar los est\u00edmulos sin la necesidad de movilizar recursos atencionales.  en audici\u00f3n, cualquier cambio en la estimulaci\u00f3n sensorial, incluso en ausencia de atenci\u00f3n, produce una respuesta el\u00e9ctrica cerebral denominada potencial de disparidad o mmn (mismatch negativity). El mmn es un potencial de polaridad negativa, end\u00f3geno, con una distribuci\u00f3n frontocentral, que puede obtenerse cuando un sonido, detectado de forma preatencional, viola alguna regularidad en una secuencia auditiva. Su generaci\u00f3n estar\u00eda relacionada con un proceso de detecci\u00f3n de cambios que implica la existencia de una representaci\u00f3n neuronal de los est\u00edmulos repetitivos en la memoria sensorial auditiva generada de forma autom\u00e1tica. Sin embargo, en visi\u00f3n la existencia de un mecanismo de detecci\u00f3n de cambios independiente de la atenci\u00f3n, similar al reflejado por el mmn auditivo, ha sido muy cuestionado. Debate que ha generado, durante la \u00faltima d\u00e9cada, la publicaci\u00f3n de diversos estudios centrados en el estudio de un correlato psicofisiol\u00f3gico de este mecanismo en el sistema visual.  el movimiento es una dimensi\u00f3n visual fundamental cuya detecci\u00f3n posee una indudable relevancia biol\u00f3gica ya que permite al individuo guiarse en el entorno sensorial. Sorprendentemente pocos estudios han evaluado el procesamiento neural ante cambios infrecuentes o repentinos en la direcci\u00f3n del movimiento. En este estudio determinamos si es posible mediante la t\u00e9cnica de potenciales evocados, registrar un correlato psicofisiol\u00f3gico de la detenci\u00f3n de cambios no atendidos en la direcci\u00f3n del movimiento. adem\u00e1s hemos comprobado si este correlato, al modo de su hom\u00f3logo auditivio, refleja la existencia de un mecanismo independiente de las caracter\u00edsticas f\u00edsicas de los est\u00edmulos y de si este mecanismo es esencialmente independiente de<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Correlatos psicofisiol\u00f3gicos de la detecci\u00f3n autom\u00e1tica de cambios en el sistema visual humano<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Correlatos psicofisiol\u00f3gicos de la detecci\u00f3n autom\u00e1tica de cambios en el sistema visual humano <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Paula Pazo \u00e1lvarez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Santiago de compostela<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 21\/09\/2004<\/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>Fernando Cadaveira Mah\u00eda<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: tom\u00e1s Ortiz alonso <\/li>\n<li>carles Escera (vocal)<\/li>\n<li>Fernando Diaz fernandez (vocal)<\/li>\n<li>mercedes Atienza ruiz (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Paula Pazo \u00e1lvarez La habilidad para detectar cambios inusuales en el ambiente es una funci\u00f3n adaptativa del [&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 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":[977],"tags":[153338,8758,5779,103775,131566,5776],"class_list":["post-70173","post","type-post","status-publish","format-standard","hentry","category-santiago-de-compostela","tag-carles-escera","tag-fernando-cadaveira-mahia","tag-fernando-diaz-fernandez","tag-mercedes-atienza-ruiz","tag-paula-pazo-alvarez","tag-tomas-ortiz-alonso"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/70173","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=70173"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/70173\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=70173"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=70173"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=70173"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}