In 2 experiments, the authors investigated phonologically mediated priming of preexisting and new associations in word retrieval. Young and older adults completed paired word stems with the first word that came to mind. Priming of preexisting associations occurred when word-stem pairs containing homophones (e.g., beech-s____) showed more…

When pictures and words are presented serially in an explicit memory task, recall of the pictures is superior. While this effect is well established in the adult population, little is known of the development of this picture-superiority effect in typical development. This task was administered to 80 participants from middle childhood to…

Switching between tasks produces decreases in performance as compared to repeating the same task. Asymmetrical switch costs occur when switching between two tasks of unequal difficulty. This asymmetry occurs because the cost is greater when switching to the less difficult task than when switching to the more difficult task. Various theories about…

This study sought to investigate whether the abnormally small P3 amplitudes observed in pervasive developmental disorder (PDD) are related to differences in processing capacity. PDD children and adolescents and their control groups participated in the study. Visual probe stimuli were presented during an auditory task with two levels of difficulty.…

Background: Traditional studies of children's mastery of conservation of volume in liquids and solids have reported that conservation of volume in liquids is an easier concept to master than its solid counterpart. However, the two concepts have been assessed in different ways, with the assessment tool for solids employing a more complex process.…

The ability to understand references to the absent enables conversation to move beyond the here-and-now to matters distant in both space and time. Such understanding requires appreciating the relation between language and communicative intent: one must recognize speakers' intentions to use language to converge on a shared conversational focus that…

This study examines the conditions under which 3-year-olds can use the desires of others to predict others' behavior. In Study 1, children were highly successful in predicting the actions of an agent based on that agent's desires when they were explicitly told about the agent's desires, even when the agent's desires were strongly different from…

Our goals in this study were to develop a measure of children's understanding of divergent interpretations of conflict and relate that measure to children's more general interpretive understanding of mind (Carpendale & Chandler, 1996). Eighty-nine children between 4 and 9 years of age heard 4 conflict stories in which fault was ambiguous. Children…

In this review, we report on studies that have assessed the effects of exogenous and endogenous increases in stress hormones on human cognitive performance. We first describe the history of the studies on the effects of using exogenous stress hormones such as glucocorticoids as anti-inflammatory medications on human cognition and mental health.…

Despite enormous growth in the study of learners' cognitive processes, relatively little is known about how learners reason about social phenomena and issues involved in disciplines, such as history. Yet, according to scholars the process could hardly be more important, and it demands redress and scientific explanation. To contribute to the…

The nonword repetition (NWR) test has been shown to be a good predictor of children's vocabulary size. NWR performance has been explained using phonological working memory, which is seen as a critical component in the learning of new words. However, no detailed specification of the link between phonological working memory and long-term memory…

Developmental studies of face processing have revealed age-related changes in how infants allocate neurophysiological resources to the face of a caregiver and an unfamiliar adult. We hypothesize that developmental changes in how infants interact with their caregiver are related to the changes in brain response. We studied 6-month-olds because this…

A study examined the relative contributions of age, sex, and education to verbal and nonverbal fluency in a normal population. Sixty-seven subjects aged 12 to 71 years performed paper-and-pencil tasks proven to be dependent on the right and left hemispheric modalities of the frontal lobes. Multiple t-tests were applied to determine whether…

The purpose of this study was to identify conflict resolution strategies used by siblings when they chose television programs to watch and to examine differences in strategies associated with sex of child, the age interval between siblings, and their ordinal position. Children, 116 pairs of siblings in first through sixth grade, were interviewed…

For more than a decade it has been convention to assume that senile dementia Alzheimer's type (SDAT) and Alzheimer's disease early onset represent a unitary disease process with only an onset difference. This assumption has been neither confirmed nor disconfirmed. To address this issue, a study was conducted which analyzed the dissolution of…