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| Research article summary (published 27 Feb 2003): |
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Age-related changes in selective attention and perceptual load during visual search.
Full Abstract
Three visual search experiments were conducted to test the hypothesis that age differences in selective attention vary as a function of perceptual load (E. A. Maylor & N. Lavie, 1998). Under resource-limited conditions (Experiments 1 and 2), the distraction from irrelevant display items generally decreased as display size (perceptual load) increased. This perceptual load effect was similar for younger and older adults, contrary to the findings of Maylor and Lavie. Distraction at low perceptual loads appeared to reflect both general and specific inhibitory mechanisms. Under more data-limited conditions (Experiment 3), an age-related decline in selective attention was evident, but the age difference was not attributable to capacity limitations as predicted by the perceptual load theory.
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Author information
Author/s: Madden, David J (DJ); Langley, Linda K (LK);
Affiliation: Center for the Study of Aging and Human Development and Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, North Carolina 27710, USA. djm(-atsign-)geri.duke.edu
Grants: R01 AG011622-07 (Agency:United States NIA) ; R01 AG011622-08 (Agency:United States NIA) ; R01 AG011622-09 (Agency:United States NIA) ; R01 AG11622 (Agency:United States NIA) ; R37 AG002163-18 (Agency:United States NIA) ; R37 AG002163-19 (Agency:United States NIA) ; R37 AG002163-20 (Agency:United States NIA) ; R37 AG02163 (Agency:United States NIA)
Journal and publication information
Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S.
Journal: Psychology and aging (Psychol Aging), published in United States. (Language: eng)
Reference: 2003-Mar; vol 18 (issue 1) : pp 54-67
Dates: Created 2003/03/18; Completed 2003/06/06; Revised 2007/11/14;
PMID: 12641312, 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.
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