Examined the effects of narrative statements used to evoke imaginal elaborations on children's recall. Found that children generated images that involved multiple referents and that children's memory performance was facilitated when their imaginal constructions were based on material created by themselves rather than on descriptions provided by…

Reviews literature on human fetal behavior. Includes descriptions of coupling of body movements and fetal heart rate and behavior maturation from conception to term. Discusses use of stimulus-induced behavior to examine sensory and cognitive development, and spontaneous and stimulus-induced behavior to assess fetal well-being. Notes research focus…

Assessed semantic priming for category coordinates and function-related words in children with good or poor reading comprehension, matched for decoding skill. Found that both groups showed priming for function-related words, but poor comprehenders showed priming for category coordinates only if the pairs shared high-association strength. Good…

Presented five- and eight-month olds with silent moving and static video images of self, peer, and doll, and sounds of self and nonsocial objects. Found that recognition of one's image develops through experience with dynamic facial stimulation during first eight months. By five months, infants treat their faces and voices as familiar and social…

Three experiments explored change toward more flexible reliance on combinations of spatial and nonspatial landmark information to reorient oneself. Identified 5-7 years as age for this developmental change. Results suggest that language production skills play a causal role in allowing humans to construct novel representations rapidly, which can…

A study of 300 children in kindergarten, grade 2, and grade 6 found that background music improved visual discrimination task performance at the youngest and middle ages and had no effect on the oldest participants. On a square identification task, background music had no influence on easy and difficult tasks but lowered performance on…

Discusses the influence of Levy-Bruhl's analysis (1910) of "primitive" mentality on Piaget's research and theory contrasting child and adult ontology and logic. Maintains that parallels between their research designs substantiate Piaget's explicit references to Levy-Bruhl. Suggests that their conceptual kinship has implications for an…

A study of 700 children (ages 5-12) investigated whether children's conceptions of and expectations of friendship are determined by chronological age or by mental age. Results found children of differing intellectual abilities pass through the five conception stages of friendship at different ages and at different rates. (Contains 4 references.)…

This study examined effects of individual differences in speak-span scores and variations in memory demands on class-inclusion performance of 10-, 13-, and 15-year-olds. Results from regression analyses and the mathematical model indicated that differences in age, speak span, and memory load affected performance. Effects of speak span and memory…

Suggests an account of transitivity and transitive inferential reasoning differing from classic Piagetian and current information processing accounts. Postulates a three-component psychological system, with components relying on perceptual, linguistic, and conceptual subprocesses and sensitivity to simple cues. Maintains that the framework is…

This study, with 180 deaf or hard of hearing infants and toddlers grouped into four age ranges, found highly significant interrelationships among the four categories of play and the four aspects of communicative development studied. The development of autosymbolic play, age of hearing loss identification, and symbolic object distribution accounted…

Used a popular children's picture book to explore preschool children's understanding of false beliefs. Found that, irrespective of age, children had a greater probability of demonstrating their understanding of false belief during the narrative task than during a traditional false belief task. (Author/KB)

Tested whether 2- to 4-year olds could reason with incongruent syllogisms when encouraged to use their imagination. Randomly assigned 2-, 3-, and 4-year olds to one of four conditions (no cue, word cue, fantasy planet, or imagery) and presented syllogistic reasoning problems with incongruent information. Found that in imagination conditions, 2-…

Two experiments examined toddlers' noun vocabularies and interpretations of names for solid and non-solid items. Results indicated that one side of the solidity-syntax-category organization mapping was favored. Seventeen- to 33-month olds do not systematically generalize names for solid things by shape similarity until they already know many…

Meta-analysis of the A-not-B error was conducted, using logistic regression, on studies conducted before September 1997. Results replicated earlier findings, with exception that the number of trials at the A location was a significant predictor, and the number of locations was a significant predictor of the proportion of infants who searched…