The classifying behavior of five-year-old children and adults was examined in two studies of restricted classification using triads of stimuli composed of the dimensions of length and density. Results were consistent with the notion of separable perception for adults and integral perception for children. (Author/SS)

BOTH COGNITIVELY-ORIENTED AND RESPONSE-ORIENTED THEORIES OF PERCEPTUAL LEARNING ARE DISCUSSED AND CONTRASTED WITH A STIMULUS-ORIENTED THEORY. PERCEPTUAL LEARNING IS DEFINED AS AN INCREASE IN SPECIFICITY OF DISCRIMINATION OF THE STIMULUS INPUT. THE AUTHOR DESCRIBED WHAT IS LEARNED IN PERCEPUTAL LEARNING AS () THE DISTINCTIVE FEATURES OF THINGS, (2)…

Examined visual search for compound patterns in 6-, 8-, 10-, and 22-year-olds. Found large improvements with age in search rate for long-range targets; search rate for short-range targets was fairly constant across age. This pattern held regardless of ease of perceptual access to target, supporting the hypothesis of different processes involved at…

Examines the interrelationships of task performances and developmental changes of 4-, 6-, and 8-year-olds. Significant developmental changes were observed on transposition, cue interference, and spatial memory. The pattern of intercorrelations between tasks suggested a high degree of correspondence across tasks. (ST)

This study continued to replicate and extend research dealing with children's perceptions of vulnerability to health problems. Responses of 774 children, 8 to 17 years old, to 15 questions about the likelihood of encountering various health problems confirmed previous results indicating that perceived vulnerability is consistent across health…

Infants in four age groups--three, six, nine and twelve months--were exposed to an experimental procedure designed to assess the extent to which such subjects were capable of discriminating between different orientations of the same form, and the extent to which they were capable of recognizing the identity between different orientations of the…