Visual search asymmetries in complex geophysical displays
Yamani, Yusuke
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https://hdl.handle.net/2142/16793
Description
Title
Visual search asymmetries in complex geophysical displays
Author(s)
Yamani, Yusuke
Issue Date
2010-08-20T17:57:58Z
Director of Research (if dissertation) or Advisor (if thesis)
McCarley, Jason S.
Department of Study
Institute of Aviation
Discipline
Human Factors
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
Visual search
Attention
Complex display
Abstract
Electronic displays such as geophysical maps can become heavily cluttered (e.g. Lohrenz, Trafton, Beck, & Gendron, 2009), hindering operators’ accurate detection of task-critical information. The use of visual search asymmetries (Treisman & Souther, 1985) in the design of display iconography might be an effective technique for prioritizing important information in such displays, but only if the asymmetry persists in the presence of clutter. The present experiments demonstrate that search asymmetries based on an additional feature (Treisman & Souther, 1985) and on stimulus familiarity (Malinowski & Hübner, 2001) persisted across varying levels of visual clutter. Results imply that iconography exploiting visual search asymmetries can support efficient search even in heavily cluttered displays.
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