{"id":15000,"date":"2018-03-09T09:01:58","date_gmt":"2018-03-09T09:01:58","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-del-flujo-sangua%c2%adneo-cerebral-en-pacientes-con-esquizofrenia-y-controles-sanos-mediante-pet-h2-15o-a-traves-de-un-paradigma-de-atencion-auditiva\/"},"modified":"2018-03-09T09:01:58","modified_gmt":"2018-03-09T09:01:58","slug":"estudio-del-flujo-sangua%c2%adneo-cerebral-en-pacientes-con-esquizofrenia-y-controles-sanos-mediante-pet-h2-15o-a-traves-de-un-paradigma-de-atencion-auditiva","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-medicas\/estudio-del-flujo-sangua%c2%adneo-cerebral-en-pacientes-con-esquizofrenia-y-controles-sanos-mediante-pet-h2-15o-a-traves-de-un-paradigma-de-atencion-auditiva\/","title":{"rendered":"Estudio del flujo sangu\u00edneo cerebral en pacientes con esquizofrenia y controles sanos mediante pet-h2 15o a trav\u00e9s de un paradigma de atenci\u00f3n auditiva"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Pilar L\u00f3pez Garc\u00eda <\/strong><\/h2>\n<p>Introducci\u00f3n  la idea de la existencia de alteraciones cognitivas en la esquizofrenia fue propuesta por kraepelin a principios de siglo (1919) en forma de \u00abtrastorno de la atenci\u00f3n\u00bb. Dentro de las funciones neuropsicol\u00f3gicas que se han encontrado alteradas en la esquizofrenia, la atenci\u00f3n se nos presenta como un dominio cognitivo prometedor a la hora de esclarecer la fisiopatolog\u00eda de la enfermedad. el estudio de los sustratos anatomofuncionales de la atenci\u00f3n est\u00e1 avanzando en los \u00faltimos a\u00f1os gracias a la aplicaci\u00f3n de las t\u00e9cnicas de neuroimagen funcional mediante pet.  objetivos  1,- conocer las diferencias de rendimiento de los tests neuropsicol\u00f3gicos entre sujetos sanos y pacientes esquizofr\u00e9nicos.  2,- examinar los patrones de flujo sangu\u00edneo cerebral mediante pet h2 15o correspondientes a la realizaci\u00f3n de tareas atencionales en sujetos sanos, pacientes con esquizofrenia y en la comparaci\u00f3n entre ambos grupos.  material y m\u00e9todos  fueron estudiados 10 sujetos sanos y 11 pacientes. Se aplicaron tests neuropsicol\u00f3gicos que valoraban aspectos atencionales. Elegimos un paradigma de atenci\u00f3n que consist\u00eda en la aplicaci\u00f3n de est\u00edmulos auditivos en forma de \u00abclicks\u00bb. Para la medici\u00f3n del flujo sangu\u00edneo cerebral se emple\u00f3 pet-o15 realizando un an\u00e1lisis estad\u00edstico de los resultados mediante el programa statistical parametric mapping (spm99).  conclusiones  1,- los pacientes con esquizofrenia presentan d\u00e9ficits de rendimiento en pruebas neuropsicol\u00f3gicas que miden la atenci\u00f3n.  2,- existe una menor activaci\u00f3n frontal en la esquizofrenia en tareas que requieren un mayor esfuerzo atencional. Los pacientes fallan al activar el  cortex prefrontal dorsolateral, el c\u00edngulo anterior, el \u00e1rea motora suplementaria y la circunvoluci\u00f3n parietal inferior, \u00e1reas probablemente interconectadas anat\u00f3mica y funcionalmente, lo que ser\u00eda un reflejo de las dificultades que presentan los pacientes esquizofr\u00e9ni<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio del flujo sangu\u00edneo cerebral en pacientes con esquizofrenia y controles sanos mediante pet-h2 15o a trav\u00e9s de un paradigma de atenci\u00f3n auditiva<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio del flujo sangu\u00edneo cerebral en pacientes con esquizofrenia y controles sanos mediante pet-h2 15o a trav\u00e9s de un paradigma de atenci\u00f3n auditiva <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Pilar L\u00f3pez Garc\u00eda <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Navarra<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 21\/12\/2001<\/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>Salvador Cervera Enguix<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: jose Giner ubago <\/li>\n<li>julio belarmino Bobes garcia (vocal)<\/li>\n<li>Miguel Gutierrez fraile (vocal)<\/li>\n<li>  (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Pilar L\u00f3pez Garc\u00eda Introducci\u00f3n la idea de la existencia de alteraciones cognitivas en la esquizofrenia fue propuesta [&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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