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Direct linkMarkson, Lori; Spelke, Elizabeth S. – Infancy, 2006
Six experiments investigated 7-month-old infants' capacity to learn about the self-propelled motion of an object. After observing 1 wind-up toy animal move on its own and a second wind-up toy animal move passively by an experimenter's hand, infants looked reliably longer at the former object during a subsequent stationary test, providing evidence…
Descriptors: Infants, Motion, Toys, Experiments
Cantlon, 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
