Color Similarity in Visual Search

In the present study, we investigated the role of phenomenologically perceived color differences between stimuli in determining visual search efficiency. We contrasted this with predictions based on the categorical color status, as proposed by Wolfe's Guided Search 2 model. We first asked parti...

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Bibliographic Details
Published in:Swiss journal of psychology 2007-12, Vol.66 (4), p.191-199
Main Authors: Reijnen, Ester, Wallach, Dieter, Stöcklin, Markus, Kassuba, Tanja, Opwis, Klaus
Format: Article
Language:English
Subjects:
Color Perception
Female
Human
Male
Stimulus Similarity
Visual Search
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Summary:In the present study, we investigated the role of phenomenologically perceived color differences between stimuli in determining visual search efficiency. We contrasted this with predictions based on the categorical color status, as proposed by Wolfe's Guided Search 2 model. We first asked participants to rate the color similarity of each pair of stimuli (pairwise comparison). The results were combined using multidimensional scaling to produce a similarity metric, which was subsequently used to define stimulus similarities for two visual search experiments. The results demonstrate that the time required by participants to find a target is more adequately explained by the perceived similarity of colors than by color categories.
ISSN:1421-0185
1662-0879
DOI:10.1024/1421-0185.66.4.191