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Saccadic eye movements are usually assumed to be directed to locations containing important or useful information, but such assumptions fail to take into account that planning saccades to such locations might be too costly in terms of effort or attention required. To investigate costs of saccadic planning, subjects searched for a target letter that was contained in either one of two clusters located...
Most theories of visual search emphasize issues of limited versus unlimited capacity and serial versus parallel processing. In the present article, we suggest a broader framework based on two principles, one empirical and one theoretical. The empirical principle is to focus on conditions at the intersection of visual search and the simple detection and discrimination paradigms of spatial vision. Such...
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