Visual Representation Determines Search Difficulty: Explaining Visual Search Asymmetries
نویسندگان
چکیده
منابع مشابه
Visual Representation Determines Search Difficulty: Explaining Visual Search Asymmetries
In visual search experiments there exist a variety of experimental paradigms in which a symmetric set of experimental conditions yields asymmetric corresponding task performance. There are a variety of examples of this that currently lack a satisfactory explanation. In this paper, we demonstrate that distinct classes of asymmetries may be explained by virtue of a few simple conditions that are ...
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In visual search tasks, observers look for a target stimulus among distractor stimuli. A visual search asymmetry is said to occur when a search for stimulus A among stimulus B produces different results from a search for B among A. Anne Treisman made search asymmetries into an important tool in the study of visual attention. She argued that it was easier to find a target that was defined by the...
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How do we find what we are looking for? A target can be in plain view, but it may be detected only after extensive search. During a search we make directed attentional deployments like saccades to segment the scene until we detect the target. Depending on difficulty, the search may be fast with few attentional deployments or slow with many, shorter deployments. Here we study visual search in ba...
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When a visual search task is very difficult (as when a small feature difference defines the target), even detection of a unique element may be substantially slowed by increases in display set size. This has been attributed to the influence of attentional capacity limits. We examined the influence of attentional capacity limits on three kinds of search task: difficult feature search (with a subt...
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OBJECTIVE An experiment aimed to test whether design of symbology to produce visual search asymmetries might facilitate target detection in cluttered displays. BACKGROUND A visual search asymmetry exists between two stimuli when a target of one type is found efficiently among distractors of the second type but a target of the second type is found with difficulty among distractors of the first...
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ژورنال
عنوان ژورنال: Frontiers in Computational Neuroscience
سال: 2011
ISSN: 1662-5188
DOI: 10.3389/fncom.2011.00033