Deterioro de la memoria semántica en pacientes de alzheimer

  1. González Labra, María José
  2. Galeote Moreno, Miguel Ángel
  3. Peraita Adrados, Herminia
Journal:
Psicothema

ISSN: 0214-9915

Year of publication: 1999

Volume: 11

Issue: 4

Pages: 917-937

Type: Article

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Abstract

Este trabajo analiza las alteraciones semántico-categoriales en un grupo de pacientes con demencia probable tipo Alzheimer, y las compara con un grupo de controles sanos. Las tareas cognitivas cuyos resultados se presentan y a través de las que se analiza dicho deterioro son: definición de categorías, analogías semánticas y clasificación. En el análisis de covarianza se consideraron como variables independientes el tipo de sujeto/grupo (sano, enfermo leve y enfermo moderado); el tipo de ítem o estímulo (categoría de seres vivientes y de artefactos) así como el tipo de atributos o relaciones conceptuales implicadas. La edad y el nivel de estudios se consideraron como covariantes. Los resultados indican que la edad es altamente significativa en la mayoría de las pruebas, el tipo de grupo/fase de la enfermedad es altamente significativa en todas las tareas, mientras que la característica vivo/no vivo de los estímulos sólo es significativa en las pruebas de clasificación. Por último el tipo de atributo y/o las relaciones conceptuales son también altamente significativas, así como la interacción entre estas últimas y la fase de la enfermedad.

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