Although some evidence indicates that even very young children engage in rudimentary forms of strategic behavior, the underlying mechanisms remain largely unknown. This study tested the hypothesis that uncertainty monitoring underlies such behaviors. Three-, four-, and five-year-old children ("N" = 88) completed a perceptual…

Differential looking and manipulation were assessed in 44 six-month-old infants who were presented with familiar and novel visual stimuli. The infants looked at the novel stimuli longer. (ST)

In an evaluation of the relation between dimensional salience and preschoolers' judgments of bigness, 3-year-old children were shown triads of rectangles and asked to select the "big" one. The biggest rectangle in each triad was neither the tallest nor the widest. (JMB)

Study attempted to determine the viability of optimal level theory as it pertains to infant perceptual and cognitive development. (Authors)

Although Ss underestimated the size of the illusion in the predicted direction, no significant correlations between size of illusion and either age or IQ were found. (Authors)

When an object moves behind an occluder and re-emerges, 4-month-old infants perceive trajectory continuity only when the occluder is narrow, raising the question of whether time or distance out of sight is the important constraining variable. One hundred and forty 4-month-olds were tested in five experiments aimed to disambiguate time and distance…

For the age range tested there is a lag between the perception and production of certain facial expressions. (Authors)

One question prompting the present research concerned the relation between performance under tachistoscopic'' conditions where exposure durations are too brief to permit active overt visual search, and performance when overt search is possible. (Author)