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Francis, Gregory; Bias, Keri; Shive, Joshua – Journal of Experimental Psychology: Applied, 2010
Mathematicians have proven that four colors are sufficient to color 2-D maps so that no neighboring regions share the same color. Here we consider the psychological 4-color problem: Identifying which 4 colors should be used to make a map easy to use. We build a model of visual search for this design task and demonstrate how to apply it to the task…
Descriptors: Maps, Search Strategies, Counties, Psychology
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Braithwaite, Jason J.; Humphreys, Glyn W.; Hulleman, Johan; Watson, Derrick G. – Journal of Experimental Psychology: Human Perception and Performance, 2007
The authors report 4 experiments that examined color grouping and negative carryover effects in preview search via a probe detection task (J. J. Braithwaite, G. W. Humphreys, & J. Hodsoll, 2003). In Experiment 1, there was evidence of a negative color carryover from the preview to new items, using both search and probe detection measures. There…
Descriptors: Experiments, Probability, Color, Cluster Grouping