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Direct linkCantlon, Jessica F.; Brannon, Elizabeth M. – Infancy, 2006
We investigated how within-stimulus heterogeneity affects the ability of rhesus monkeys to order pairs of the numerosities 1 through 9. Two rhesus monkeys were tested in a touch screen task where the variability of elements within each visual array was systematically varied by allowing elements to vary in color, size, shape, or any combination of…
Descriptors: Reaction Time, Visual Discrimination, Statistical Analysis, Experiments
