Data confirmed the difficulties which some African populations encounter when dealing with this type of task. (Author/MB)

Results were interpreted in terms of current conceptions of age differences in information-processing speed. (Author)

It is hoped that in its role as a conversational programming language for the layman who wants to learn about text analysis, SCAN will fill a gap in the range of available programming tools. (MB)

Proposes an approach to the design of certain portions of a machine for the analysis and recognition of handwriting. Measures the displacement, velocity, acceleration of handwriting movements, and the writing pressure of the pencil point. Appendix and references. (VJ)

The abstracts obtained so far are of sufficiently good quality to indicate that large-scale testing of the methods of the automatic abstracting system is warranted. (Author/MM)

Activities with triangular, square, pentagonal, hexagonal, and octagonal numbers are briefly discussed. (MNS)

The relation between the area of a rectangle and its perimeter is clarified by looking at patterns. Several examples involving rectangles with integral sides are presented. (MNS)

A familiar procedure for generating magic squares is reviewed. A surprising pattern is noted. (MNS)

Four experiments examined how perception affects delayed recognition, visual pop out, and memory reactivation (priming) in six month olds. Infants discriminated cues differing in spatial arrangement or number of primitive perceptual units (textons) in a delayed recognition task and exhibited adultlike visual pop-out effects in a priming task. (MDM)

Studies the relationships among children's aural perception of tonal pattern and children's symbol use in drawing and selection tasks based on tonal information. Shows that ability to use musical symbols in reading and writing tasks is related to aural perception of musical sound, and that these abilities follow a developmental progression. (DSK)

Presents two linked experiments on reasoning by analogy. Shows in the first experiment that there are two processes underlying reasoning by analogy: (1) using abstract knowledge; and (2) case-based reasoning. Demonstrates in the second how some individuals use both processes and how they can lead to long-term acquisition of principles underlying…

Wilcox (Cognition 72 (1999) 125) reported that infants are more sensitive to form than surface features when individuating objects in occlusion events: it is not until 7.5 months that infants spontaneously use pattern information, and 11.5 months that they spontaneously use color information, as the basis for object individuation. The present…

Learning in educational settings most often emphasizes declarative and procedural knowledge. Studies of expertise, however, point to other, equally important components of learning, especially improvements produced by experience in the extraction of information: "Perceptual learning." Here we describe research that combines principles of…