Visual Search for Complex Targets

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Abstract
With the use of available data, search time and stimulus processing rate for a multidimensional target in an array of such stimuli were analyzed with respect to number of displayed stimuli and total stimulus information. The major findings were that search time decreases and stimulus processing rate increases as the number of dimensions in a multidimensional target increases, and that the rate of processing increases as a function of total stimulus information. A model of total stimulus information which assumes sequential processing of dimensions in order of increasing features or levels was found to fit the data.

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