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Illusory Conjunctions in the Time Domain and the Resulting Time-Course of the Attentional Blink

Published online by Cambridge University Press:  10 April 2014

Juan Botella ,
Isabel Arend  and
Manuel Suero
Juan Botella*
Affiliation:
Autonomous University of Madrid
Isabel Arend
Affiliation:
Autonomous University of Madrid
Manuel Suero
Affiliation:
Autonomous University of Madrid
*
Correspondence concerning this article should be addressed to Juan Botella. Facultad de Psicología, Universidad Autónoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain. E-mail:juan.botella@uam.es
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Abstract

Illusory conjunctions in the time domain are errors made in binding stimulus features presented In the same spatial position in Rapid Serial Visual Presentation (RSVP) conditions. Botella, Barriopedro, and Suero (2001) devised a model to explain how the distribution of responses originating from stimuli around the target in the series is generated. They proposed two routes consisting of two sequential attempts to make a response. The second attempt (sophisticated guessing) is only employed if the first one (focal attention) fails in producing an integrated perception. This general outline enables specific predictions to be made and tested related to the efficiency of focal attention in generating responses in the first attempt. Participants had to report the single letter in an RSVP stream of letters that was presented in a previously specified color (first target, T1) and then report whether an X (second target, T2) was or was not presented. Performance on T2 showed the typical U-shaped function across the T1-T2 lag that reflects the attentional blink phenomenon. However, as was predicted by Botella, Barriopedro, and Suero's model, the time-course of the interference was shorter for trials with a correct response to T1 than for trials with a T1 error. Furthermore, longer time-courses of interference associated with pre-target and post-target errors to the first target were indistinguishable.

Se llaman conjunciones ilusorias en el dominio del tiempo a los errores que se producen al combinar rasgos estimulares presentados en la misma posición espacial en condiciones de Presentación Rápida de Series Visuales (PRSV). Botella, Barriopedro y Suero (2001) han formalizado un modelo para explicar cómo se genera la distribución de las respuestas de acuerdo con su posición de origen respecto a la posición del blanco o diana en la serie. Propusieron dos rutas que están constituidas por dos intentos secuenciales de alcanzar una respuesta. El segundo intento (una forma de adivinación sofisticada) sólo se utiliza si fracasa el primero (basado en la atención focal) en su intento por producir un percepto integrado. Esta estructura general permite derivar y poner a prueba predicciones concretas relativas al rendimiento de la atención focal en la generación de respuestas en el primer intento. Los participantes tienen que informar de cuál es la única letra de una serie de letras mostrada en PRSV que apareció en un color previamente especificado (primer blanco, T1) y después indicar si también se presentó una X (segundo blanco, T2). El rendimiento con T2 a través de los diferentes desfases T1-T2 mostró la típica función en forma de U que caracteriza el efecto de attentional blink (AB). Sin embargo, tal y como se predice desde el modelo de Botella, Barriopedro y Suero, el curso temporal de la interferencia fue más corto para los ensayos con una respuesta correcta a T1 que en los ensayos con errores. Además, esos cursos temporales de la interferencia más largos, asociados a los errores pre-blanco y post-blanco al primer blanco, fueron indistinguibles.

Keywords

illusory conjunctionsfeatures bindingattentionConjunciones ilusoriaspegado de rasgosatención
Type
Articles
Information
The Spanish Journal of Psychology , Volume 7 , Issue 1 , May 2004 , pp. 63 - 68
Copyright
Copyright © Cambridge University Press 2004

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