Top-down search strategies cannot override attentional capture

Bacon and Egeth (1994) have claimed that color singletons do not interfere with search for a shape singleton when, instead of using a singleton detection mode, participants are forced to use a feature search mode. Bacon and Egeth induced a feature search mode by adding different shape singletons to...

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Bibliographic Details
Published in:Psychonomic bulletin & review 2004-02, Vol.11 (1), p.65-70
Main Author: THEEUWES, Jan
Format: Article
Language:English
Subjects:
Activity levels. Psychomotricity
Adolescent
Adult
Attention
Biological and medical sciences
Color
Color Perception
Fixation, Ocular
Form Perception
Fundamental and applied biological sciences. Psychology
Humans
Mathematical analysis
Mathematical models
Number theory
Perception
Psychology
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Reaction Time
Signal Detection, Psychological
Vigilance. Attention. Sleep
Vision
Visual Perception
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Summary:Bacon and Egeth (1994) have claimed that color singletons do not interfere with search for a shape singleton when, instead of using a singleton detection mode, participants are forced to use a feature search mode. Bacon and Egeth induced a feature search mode by adding different shape singletons to the display so that observers could not simply respond to uniqueness to find the target. We did exactly the same but used larger display sizes to ensure that the target and distractor singletons remained salient. The results show that under these conditions, an irrelevant color singleton interferes with search for a shape singleton. It is argued that the notion of differential search modes may be incorrect and that the results can be explained in terms of bottom-up salience signals.
ISSN:1069-9384
1531-5320
DOI:10.3758/BF03206462