Kunar, Melina A., Humphreys, Glyn W. and Smith, Kelly J.. (2003) History matters: the preview benefit in search is not onset capture. Psychological Science, Vol.14 (No.2). pp. 181-185. ISSN 0956-7976

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Abstract

Visual search for a conjunction target is made easier when distractor items are temporally segregated over time to produce two separate old and new groups (the new group containing the target item). The benefit of presenting half the distractors first is known as the preview effect. Recently, some researchers have argued that the preview effect occurs because new stimuli capture attention. This account was tested in the present study by using a novel “top-up” condition that exploits the fact that when previews appear only briefly before the search display, there is minimal preview benefit. We show that effects of a brief preview can be “topped up” by an earlier exposure of the same items, even when the preview disappears between its first and second presentations. This top-up effect demonstrates that the history of the old stimuli is important for the preview benefit, contrary to the account favoring onset capture. We discuss alternative accounts of how the preview benefit arises.

Item Type:	Journal Article
Subjects:	B Philosophy. Psychology. Religion > BF Psychology
Divisions:	Faculty of Science > Psychology
Library of Congress Subject Headings (LCSH):	Visual perception -- Research
Journal or Publication Title:	Psychological Science
Publisher:	Sage Publications, Inc.
ISSN:	0956-7976
Date:	2003
Volume:	Vol.14
Number:	No.2
Page Range:	pp. 181-185
Identification Number:	10.1111/1467-9280.t01-1-01439
Status:	Peer Reviewed
Funder:	Biotechnology and Biological Sciences Research Council (Great Britain) (BBSRC), Medical Research Council (Great Britain) (MRC)
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URI:	http://wrap.warwick.ac.uk/id/eprint/35698

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