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| Research article summary (published 27 Feb 2002): |
Visual marking: dissociating effects of new and old set size.
Full Abstract
Visual marking makes it possible to ignore old items during search. In a typical study, old items are previewed 1 s before adding an equal number of new items, one of which is the target. Previewing half of the items reduces the search slope relating response time (RT) to overall set size by half. However, this manipulation sometimes only reduces overall RT but not search slope (Experiment 1). By orthogonally varying the numbers of old and new items, Experiment 2 shows that old and new set sizes interactively affect visual marking. Given a constant new set size, the size of the old set has negligible effect on RT. However, increasing the new set size reduces the preview benefit in overall RT. Experiment 3 shows that this reduction may be restricted to paradigms that use temporal segregation cues. Studies should vary old and new set size orthogonally to avoid missing a visual marking effect where one may be present.
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Author information
Author/s: Jiang, Yuhong (Y); Chun, Marvin M (MM); Marks, Lawrence E (LE);
Affiliation: Department of Psychology, Yale University, USA. yuhong(-atsign-)mit.edu
Grants: DC00271-15 (Agency:United States NIDCD)
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.
Journal: Journal of experimental psychology. Learning, memory, and cognition (J Exp Psychol Learn Mem Cogn), published in United States. (Language: eng)
Reference: 2002-Mar; vol 28 (issue 2) : pp 293-302
Dates: Created 2002/03/25; Completed 2002/09/06; Revised 2007/11/14;
PMID: 11911385, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
Comments and Corrections
ErratumIn: J Exp Psychol Learn Mem Cogn 2002 May;28(3):410.
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