The attentional blink is susceptible to concurrent perceptual processing demands

Christmann, C. and Leuthold, H. (2004) The attentional blink is susceptible to concurrent perceptual processing demands. Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology, 57(2), pp. 357-377. (doi:10.1080/02724980343000350)

Christmann, C. and Leuthold, H. (2004) The attentional blink is susceptible to concurrent perceptual processing demands. Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology, 57(2), pp. 357-377. (doi:10.1080/02724980343000350)

Full text not currently available from Enlighten.

Abstract

In a rapid serial visual presentation stream processing of a first target (T1) impairs detection or identification of a second target (T2) that appears within 500 ms after T1. This effect characterizes the so-called attentional blink (AB). To evaluate contemporary information-processing accounts of the AB phenomenon in terms of the underlying processing mechanisms the present study examined the potential influence of Task 1 difficulty on the AB effect. To this end, T1 contrast and T1 response requirements were systematically varied across four experiments. Experiment 1 ruled out a mere sensory basis of the contrast manipulation on T2 performance. When only T2 had to be reported (Experiment 2) an AB effect occurred that was slightly modulated by T1 contrast. When report of both T1 and T2 was required in a standard AB task (Experiment 3), the magnitude of the AB depended to a larger extent on stimulus contrast, and it increased further when speeded T1 choice responses were additionally required (Experiment 4). On the basis of the present impact of Task 1 difficulty on the AB effect we conclude that processing limitations cause the AB phenomenon. We discuss such limitations in terms of perceptual (T1 consolidation) and central (response selection) bottleneck processes.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Leuthold, Prof Hartmut
Authors: Christmann, C., and Leuthold, H.
Subjects:B Philosophy. Psychology. Religion > BF Psychology
College/School:College of Science and Engineering > School of Psychology
Journal Name:Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology
ISSN:0272-4987
ISSN (Online):1464-0740

University Staff: Request a correction | Enlighten Editors: Update this record