Search for a conjunctively defined target can be selectively limited to a color-defined subset of elements
article
In conjunction search, response latencies usually increase with the number of displayed elements, suggesting serial, self-terminating search through all ele-ments. In line with the results of H. Egeth, R. Virzi, and H. Garbart (1984), the present study shows that subjects do not necessarily search all display elements, but can limit their search to a color-defined subset of elements. The results make clear that selective search for a color-defined subset does not depend on the saliency of the subset (Experiment 1), that selective search can be purely color-based and does not depend on luminance (Experiment 2), and that subjects can flexibly change which subset they are searching (Experiment 3). Experiment 4 showed that subset-selective search also occurs without fast absent responses as found in Experiments 1-3 and that for selective search no explicit instruction is required. Subset-selective search is a likely strategy in conjunction search.
TNO Identifier
8318
Source
Journal of Experimental Psychology : Human Perception and Performance, 21(5), pp. 1053-1069.
Pages
1053-1069
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