Activities involving estimation of the number of objects in a configuration can motivate students to consider parametric models. (SD)

The results provide evidence of remarkable consistency in both accuracy and manner of performance from first grade through college age levels. (Authors)

The problem of determining the number of squares on a checkerboard is extended to finding the number of rectangles on an n x n board and finding the total numbers of cubes and rectangular solids in an n x n x n cube. (DT)

Children from 4 to 7 years of age were tested in a structured perceptual task in which haptic manipulation was available, but not required. The extent of haptic involvement with the stimulus material and its effect on performance in a perceptual recognition task was then determined. (Author/CB)

The similarity match took longer than the identity match, and the difference in latency increased as the number of lines in the pattern increased. (Author)

Results demonstrate that 12 - 15 - week-old male infants smile to nonsocial stimuli, and offers support for the recognition hypothesis of infant smiling. (Authors/MB)

Outline faces were presented for rating along six dichotomous attributes with features varying systematically. Differences were found to be largely attentional, with certain features invariably being differentially employed and associated with certain attributes across all samples. (WY)

No significant relationship was demonstrated by 41 preschool children who were asked to identify some represented body parts which were displayed in a scattered array on a page and the ability to draw or assemble a person. (PN)

A model of context effects in perception is applied to perception of letters. Perception results from excitatory and inhibitory interactions of detectors for visual features, letters, and words. The model produces facilitation for letters in pronounceable pseudowords as well as words and accounts for rule-governed performance without any rules.…

Reviews recent progress in modeling human cognition, in particular the use of computers in generating models. Topics covered include the information processing approach to cognition, problem solving, semantic memory, pattern induction, and learning and cognitive development. A 164-item reference list is attached. (JL)

The assumptions underlying the classfication rule-learning description of concept acquisition are critically examined. An alternative characterization of what it means to have a primacy hypothesis and Gibson's position that knowledge of the world is a product of direct perception are discusssed. (Author/RD)

Describes a study of 16 kindergarten children--eight good prereaders and eight poor prereaders--designed to determine if there were relations between reading skill and the processing of distinctive features of patterns. Concludes that both pattern classification and feature processing appear to be involved in early reading skills. (TJ)