Perceptual speed in relation to quanta of simultaneously presented material

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Abstract
An earlier study is reviewed in an attempt to substitute a more meaningful equation for that previously suggested as expressing the times for perceiving n perceptual elements simultaneously presented (where n varies from one to five). A new equation T=[1 + (n − 1)K]np is shown to accord with the results of previous experiments in both visual and tactile media. The meaning of the constants p and K is discussed and the conditions under which p might vary in magnitude and sign are theoretically deduced. The hypotheses thus posed are tested experimentally and supported by the observed results obtained from a group of 45 Ss. In general p, which expresses the degree of curvature of the graph of the equation is found to relate to the basic nature of the perceptual task, while K, indicating the mean gradient, tends to relate to individual variation from S to S

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