In preview search, half of the distracters are presented ahead of the remaining distracters and the target. Search under these conditions is more efficient than when all the items appear together (Watson and Humphreys, 1997). We investigated the mechanisms contributing to this preview benefit using an orientation discrimination task. In a display of vertical Gabors (all equidistant from fixation) one Gabor (chosen at random) was tilted (left or right). When half the non-tilted Gabors were pre...Expand abstract
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A psychophysical investigation into the preview benefit in visual search.
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