The Information Theory of Vision: evidence from eye-movements
Cronin, Deborah Ann
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https://hdl.handle.net/2142/88995
Description
Title
The Information Theory of Vision: evidence from eye-movements
Author(s)
Cronin, Deborah Ann
Issue Date
2015-11-19
Department of Study
Psychology
Discipline
Psychology
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.A.
Degree Level
Thesis
Keyword(s)
Visual search
eye-movements
Abstract
Recent evidence suggests that target-dissimilar items that are typically regarded as irrelevant to reaction times during visual search do, in fact, affect reaction times (Buetti et al., in revision). This evidence suggests that the effect on reaction time of target-dissimilar items (lures) increases logarithmically as the number of lures present in a display increases. In response to these findings, Buetti & Lleras (in preparation) developed a model of visual search, the Information Theory of Vision (ITV). ITV uniquely proposes that the time it takes to perform the initial stage of visual search, during which likely non-targets (lures) are separated from possible targets (candidates), will increase with the amount of information present in the display. ITV further employs Information Theory (Shannon, 1948), Signal Detection Theory (Green & Swets, 1966), and Hick’s Law (Hick, 1952) to support its predictions. In this study, we extend these predictions to eye-movements and find further support for ITV. Predictions of Guided Search (Wolfe, 1994) and Target Acqusition Model (Zelinsky, 2008) are also discussed.
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