Children's use of perceptual set

The effects of perceptual set and of “sequential visual noise” on the identification of briefly exposed pictures were examined in 5-year-olds, 8-year-olds, and adults. Subjects were asked to indicate whether a brief target matched a standard. The standard picture was presented either before the target picture (to establish a set) or after the target. The target was presented either alone or last in a series of six brief pictures (i.e., in noise). Adults and 8-year-olds were at ceiling when the target was presented alone, but set facilitated their identification of the target in noise. The 5-year-olds benefited from set both when the target was presented alone and when it was presented in noise. These findings suggest that set for a specific target picture functions similarly at all ages.