In four experiments, younger children and adults showed greater perceptual sensitivity and more extensive conceptual labeling for difference relations than for identity relations. Younger and older children demonstrated consistent dimensional selectivity in tasks involving free classification and the estimation of differences. (Author/BG)

We used an encoder version of cascade correlation to simulate Younger and Cohen's (1983, 1986) finding that 10-month-olds recover attention on the basis of correlations among stimulus features, but 4- and 7-month-olds recover attention on the basis of stimulus features. We captured these effects by varying the score threshold parameter in cascade…

Studied discriminative and investigatory response behavior and effects of response training on children 4-5 to 6-5 years of age. (DR)

Presented five- and eight-month olds with silent moving and static video images of self, peer, and doll, and sounds of self and nonsocial objects. Found that recognition of one's image develops through experience with dynamic facial stimulation during first eight months. By five months, infants treat their faces and voices as familiar and social…

The performance of 132 pre- and primary school children on a Bender-Gestalt copying task was compared with that of a multiple choice version. Significant correlation coefficients were obtained between the copying and recognition scores. The multiple choice version was also as successful as the copying test in predicting reading achievement scores.…

Two experiments explored the nature of perceptual development in 5- and 10-year olds and adults. The primary finding was that preassessed salience significantly influenced 5-year olds' ability to discriminate two objects, while salience did not affect 10-year olds' or adults' response times. Results showed that salience effects in perceptual…