The study reported in this paper traces the nature of the changes which take place as the child gradually acquires perspective-taking skills. The results indicate that at first the young child can correctly represent only the location of the object nearest another observer; later, he can correctly represent a before-behind relationship between…

Pioneering research has shown that infants are capable of perceptual discrimination and has provided some indication of the nature of the discrimination; that is, what stimuli are differentiable. Studies have demonstrated that significant effects exist, in stimulus-pair comparisons, for age of infant, speed of movement of stimulus during…

The purpose of this study was to investigate the development of organizational processes for both verbal and spatial stimulus materials within an information processing framework. Children in grades 2 and 4 and adults were tested for their ability to report letter strings reflecting various orders of approximation to English and various dot…

The volume addresses itself to two basic competencies needed by teachers of the slow learning child: a rationale permitting consistent interpretation of the child's learning behavior and a repertory of techniques for presenting information in a myraid of ways, from which the teacher can select classroom presentation methods most appropriate for…

Results supported Piaget's viewpoint that mental imagery and general symbolic functioning are dependent on the growth of intelligence with respect to the preadolescent period. (Author)

Both right-and left-handed normally developing 6-year-olds showed considerable evidence of bilateralization of hemispheric functions for spatial and verbal information processing; the slowly developing children (ages 5-9) exhibited unusual patterns of hemispheric specialization usually opposite those typically expected in children or adults.…

Investigated the development of reorientation abilities in humans in contrast to other mammals. Findings support the domain specificity of human's core cognitive abilities, the conservation of cognitive abilities across related species and over the course of human development, and the developmental processes by which core abilities are extended to…

Studied children's transitive inference where representation of premises provided contradictory information depending on position of two elements in a A, B, C series. Eight-year olds did significantly better on the more complex problems than did six-year olds, suggesting the presence of a developmental sequence of algorithms that enable children…

Explored evidence of perseveration, or the inability to shift from one mental activity to another, in three to seven year olds. In a visual task, perseveration was prominent for three year olds and absent for children over four. On a verbal fluency test, there were different results for three types of perseveration. (BC)