Asymmetries in visual search: An introduction
نویسندگان
چکیده
منابع مشابه
Asymmetries in visual search: an introduction.
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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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 order to establish a search asymmetry, one must run an experiment with a symmetric design and get asymmetric results. Given an asymmetric design, one expects asymmetric results, and such results do not imply an asymmetry in the search mechanisms. In this paper, I argue that a number of experiments purporting to show search asymmetries contain built-in design asymmetries. A saliency model of ...
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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...
متن کاملVisual search asymmetries in motion and optic flow fields.
In visual search, items defined by a unique feature are found easily and efficiently. Search for a moving target among stationary distractors is one such efficient search. Search for a stationary target among moving distractors is markedly more difficult. In the experiments reported here, we confirm this finding and further show that searches for a stationary target within a structured flow fie...
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ژورنال
عنوان ژورنال: Perception & Psychophysics
سال: 2001
ISSN: 0031-5117,1532-5962
DOI: 10.3758/bf03194406