Título: | Influence of stimuli factors and attention on the transition from global to local dominance : Influencia de factores estimulares y atencionales en la primacía del procesamiento de la información global y local |
Autores: | Luna, María Dolores ; Merino, José María ; Vilarino, Angel |
Tipo de documento: | texto impreso |
Editorial: | Universidad Nacional de Educacion a Distancia, 2012-07-09 |
Dimensiones: | application/pdf |
Nota general: |
Acción Psicológica; Vol 1, No 3 (2002); 253-261 Acción Psicológica; Vol 1, No 3 (2002); 253-261 2255-1271 1578-908X 10.5944/ap.1.3 Copyright (c) 2015 Facultad de Psicología. Servicio de Psicología Aplicada. http://creativecommons.org/licenses/by-nc-nd/4.0 |
Idiomas: | Español |
Palabras clave: | accionpsicologica:TeI , driver |
Resumen: |
Two experiments are reported which examined the effects of size in both certainty and uncertainty conditions, and their possible interaction with exposure duration in determining processing dominance. In Experiment 1, the size of the stimuli was presented randomly within each block of trials (size-uncertainty condition). In Experiment 2, the size of the stimuli was presented blocked (size-certainty condition). In both experiments, hierarchical stimuli, that is to say, global letters composed by few relatively large local elements with large differences in eccentricity between the global and local levels (H´s and A´s compound letters) were presented under two conditions of exposure duration (10 and 200 msec. The results showed local dominance in the large-sized condition in both Experiment 1 and 2. However, attentional factors and exposure duration of stimuli modulated the magnitude of the effects: The advantage effect was enhanced at short exposure duration whereas the magnitude of the interference effect was enhanced in size-uncertainty conditions. ResumenEn la presente investigación se examina la influencia de factores estimulares y atencionales sobre la transición en la primacía del procesamiento de la información global y local. Patrones jerárquicos, letras globales formadas por elementos locales poco numerosos y relativamente grandes, con desigual excentricidad en los niveles global y local se presentaron como estímulos con dos duraciones de exposición (10 y 200 milisegundos) y dos tamaños (3.° y 15.° de ángulo visual). En el experimento 1 los tamaños se presentaron aleatoriamente en cada bloque de ensayos, mientras que en el experimento 2 se presentaron bloqueados. En los dos experimentos se observó primacía local en la condición de tamaño grande. La duración de la exposición y la incertidumbre en el tamaño de los estímulos modularon la magnitud de los efectos que definen la primacía del procesamiento: la duración de la exposición corta acentuó la ventaja local, mientras que la incertidumbre en el tamaño de los estímulos acentuó el efecto de interferencia.AbstractTwo experiments are reported which examined the effects of size in both certainty and uncertainty conditions, and their possible interaction with exposure duration in determining processing dominance. In Experiment 1, the size of the stimuli was presented randomly within each block of trials (size-uncertainty condition). In Experiment 2, the size of the stimuli was presented blocked (size-certainty condition). In both experiments, hierarchical stimuli, that is to say, global letters composed by few relatively large local elements with large differences in eccentricity between the global and local levels (H´s and A´s compound letters) were presented under two conditions of exposure duration (10 and 200 msec. The results showed local dominance in the large-sized condition in both Experiment 1 and 2. However, attentional factors and exposure duration of stimuli modulated the magnitude of the effects: The advantage effect was enhanced at short exposure duration whereas the magnitude of the interference effect was enhanced in size-uncertainty conditions. |
En línea: | http://revistas.uned.es/index.php/accionpsicologica/article/view/557 |
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