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Search, enumeration, and aging : eye movement requirements cause age-equivalent performance in enumeration but not in search tasks
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Watson, Derrick G., Maylor, Elizabeth A. and Bruce, Lucy A. M. (2005) Search, enumeration, and aging : eye movement requirements cause age-equivalent performance in enumeration but not in search tasks. Psychology and Aging, Vol.20 (No.2). pp. 226-240. doi:10.1037/0882-7974.20.2.226 ISSN 0882-7974.
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Official URL: http://dx.doi.org/10.1037/0882-7974.20.2.226
Abstract
Response time (RT) and fixation frequency were measured for young and older adults in search and enumeration tasks under high- and low-attentional competition conditions. There was an age-related decrement in search rates for single targets both for RT and fixation frequency, but there was no deficit in enumeration rates either with or without distractors even though serial enumeration rates were much slower than single target search rates. Fixation frequency per item in serial enumeration was much greater than in serial visual search for a single target. Enumerating targets with distractors produced an overall increase in RT and fixation frequency that was greater for older adults. The data are contrary to a generalized slowing account, and an alternative is proposed on the basis of the need to make eye movements in enumeration but not in search tasks.
Item Type: | Journal Article | ||||
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Subjects: | B Philosophy. Psychology. Religion > BF Psychology | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Psychology | ||||
Library of Congress Subject Headings (LCSH): | Visual perception, Eye — Movements, Human information processing -- Age factors , Cognition — Age factors, Ability, Influence of age on, Reaction time | ||||
Journal or Publication Title: | Psychology and Aging | ||||
Publisher: | American Psychological Association/Educational Publishing Foundation | ||||
ISSN: | 0882-7974 | ||||
Official Date: | June 2005 | ||||
Dates: |
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Volume: | Vol.20 | ||||
Number: | No.2 | ||||
Number of Pages: | 15 | ||||
Page Range: | pp. 226-240 | ||||
DOI: | 10.1037/0882-7974.20.2.226 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Funder: | Economic and Social Research Council (Great Britain) (ESRC) | ||||
Grant number: | R000239180 (ESRC) |
Data sourced from Thomson Reuters' Web of Knowledge
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