Background: In the last few years, experimental data have been reported on differences in implicit memory processes of genetically distinct groups of individuals with Intellectual Disability (ID). These evidences are relevant for the more general debate on supposed asynchrony of cognitive maturation in children with abnormal brain development.…

In two experiments, the ability of children younger than 20 months to engage in delayed ordered recall was investigated. In the first experiment, 13- and 16-month-old children were presented with 2-step event sequences and tested for recall, first, immediately following the event and second, after a one-week delay. Sequences were novel-causal,…

The development and application of a learning procedure for the seriation structure of children in the oscilatory state are described. The procedure was based on the structural genetic theory of learning. A study consisting of design and verification stages was carried out in Cali, Colombia. In the design stage six seriation treatments involving…

The way that children construct the representation they use to solve transitive inference problems was examined. Forty-eight children 4.5 to 5 years old and 48 children 6 to 7 years old were asked to learn either a three-item series or a four-item nonseries. They were asked to learn the relationships between different colors of faces that were all…

The efficacy of small group instructional programs in classificatory, seriation, and combined class/series skills was evaluated for a sample of 60 urban, middle-class, 4- to 5-year-old children in a transfer of training design. Significant curriculum-specific transfer effects were found for the seriation instructional condition, whereas little…

Tested the ability of 19 older adults, given additional training in a mental imagination technique, to approach the performance of 16 younger adults on serial word recall tasks. Results indicated that negative age differences in older adults' performance were substantial, resistant to extensive practice, and applicable to all subjects. (BC)

Mandler (1969) found that one-third of adult subjects were seriators and two-thirds were categorizers in a task where either strategy could be employed. Study 1 was a replication of his procedure with children from Grades 1, 3, 5, 7, and 9. While there was weak evidence that some older subjects chose the categorial strategy, there was little…

A second year of experimental research on young children examined the instructional power of television in facilitating the acquisition of cognitive skills. In addition, researchers investigated the efficiency of an instructional support system designed to maximize the results of educational television. Subjects were three- to five-year-old Native…