Interference in visual perception by verbal and spatial cognitive activity
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1
Universidad Complutense de Madrid
info
ISSN: 1138-7416
Argitalpen urtea: 2011
Alea: 14
Zenbakia: 2
Orrialdeak: 556-568
Mota: Artikulua
Beste argitalpen batzuk: The Spanish Journal of Psychology
Laburpena
Mediante dos experimentos hemos puesto a prueba la hipótesis de que el procesamiento cognitivo basado en imaginería espacial produce más deterioro en la percepción visual que el procesamiento basado en códigos verbales. Hemos estudiado el efecto de dos tareas cognitivas, una de imaginería espacial y otra verbal, sobre la percepción visual. En el primer experimento, con 30 participantes, analizamos la carga mental y el comportamiento ocular en ambas tareas cognitivas. En el segundo experimento, con 29 participantes, estudiamos el efecto de ambas tareas sobre una tarea de búsqueda visual, usando el paradigma experimental de doble tarea. La tarea verbal presentó mayor carga mental que la de imaginería espacial cuando ambas tareas se realizaron junto con la tarea de búsqueda visual y hubo un mayor deterioro en la detección de estímulos con la tarea verbal. Concluimos que (1) las tareas cognitivas producen un importante deterioro en capacidades de búsqueda visual e identificación de estímulos visuales; (2) este deterioro tiene dos componentes: (a) búsqueda ineficiente, asociada con alteraciones del patrón de mirada mientras se desarrollan tareas cognitivas, y (b) interferencia general, no específica de códigos espaciales, en el proceso de identificación de estímulos mirados; (3) esta interferencia cognitiva está relacionada con la carga mental o esfuerzo requerido por tareas cognitivas.
Finantzaketari buruzko informazioa
This study is part of a project funded by the Spanish Ministerio de Educación y Ciencia, reference number SEJ2007-63495.Finantzatzaile
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Ministerio de Ciencia y Tecnología
Spain
- SEJ2007-63495
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