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    The Perceptual Interaction of Simple and Complex Point Symbol Shapes and Background Textures in Visual Search on Tourist Maps

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    Alhosani_ku_0099D_10397_DATA_1.pdf (60.23Mb)
    Issue Date
    2009-05-31
    Author
    Alhosani, Naeema M.
    Publisher
    University of Kansas
    Format
    476 pages
    Type
    Dissertation
    Degree Level
    Ph.D.
    Discipline
    Geography
    Rights
    This item is protected by copyright and unless otherwise specified the copyright of this thesis/dissertation is held by the author.
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    Abstract
    This study investigated visual search for simple and complex geometric and pictorial point symbols displayed on light and dark smooth and textured map backgrounds. Group-administered tests asked subjects to count occurrences of target symbols. Efficiency of visual search was determined by analyzing subjects' self-recorded counts and times for accuracy and speed. Results for symbols indicate that simple geometric and pictorial symbols are easier to search, especially when their shapes differ considerably. In contrast, complex geometric and pictorial symbols differing only in minor details of shape or orientation are harder to search. Results for backgrounds show that high value contrast between symbol and background (e.g. black symbol on white ground) facilitates search, while low contrast (e.g. black symbol on dark gray ground) yields poorer results. Since subjects also found it harder to identify symbols displayed on textured backgrounds (e.g. aerial photograph, satellite image, or relief shading), visual noise is another background factor.
    URI
    http://hdl.handle.net/1808/5524
    Collections
    • Dissertations [4472]
    • Geography & Atmospheric Science Dissertations and Theses [184]

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    785-864-8983
    KU Libraries
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    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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