The aim of this study was to evaluate the role of short-term memory and attention in time estimation. For this purpose we studied prospective time verbal estimation in 21 patients with Alzheimer's disease (AD), and compared their performance with that of 21 matched normal controls in two different conditions: during a digit span task and during an…

Eight experiments investigated the effects of visual, spatial, auditory, and executive interference on the symbolic comparison of animal size and ferocity, semantic goodness of words, and numbers. Dynamic visual noise (DVN) and the reading of visually presented stimulus items were shown to selectively interfere with response times on the animal…

Classical fear conditioning requires the recognition of conditioned stimuli (CS) and the association of the CS with an aversive stimulus. We used Affymetrix oligonucleotide microarrays to characterize changes in gene expression compared to naive mice in both the amygdala and the hippocampus 30 min after classical fear conditioning and 30 min after…

Tasks with adult learners have been discussed extensively in the language learning literature whilst studies about children using tasks are less widespread. Children's ability to interact on tasks with each other grows steadily with age. This paper reports on the differences observed in the interactions of 10-year-old children and adult learners.…

Objective: To investigate the effect of a nutrition education intervention and four hours of related teaching on the nutrition concepts of a sample of 9 year-old children. Design: Prepost test design. Children's food classification concepts were assessed before and after the intervention and nutrition teaching. Setting: Year 4 class of a suburban…

Investigated ways in which different writing tasks influence quality and quantity of foreign language composition, as well as writing strategies used by American college students when composing in Japanese as a foreign language. Study proposed to compare qualitative and quantitative differences between descriptive and narrative writing tasks; to…

Reports the results of research attempting to document the role of learners' linguistic output in drawing their attention to linguistic form and in acquiring the form. Compares experimental and comparison groups that participated in a pretest, two post-tests, and four learning tasks. (Author/VWL)

Two experiments related structure of a task to underlying cognitive mechanisms. Found that 3-year olds were no better at predicting behavior from partially true beliefs than from entirely false beliefs. Three- and 4-year olds, and autistic children had distinct performance profiles across tasks. Concluded that conceptual foundations for a…

A dual-processing paradigm was used to investigate information processing limitations underlying specific language impairment (SLI). School-age children with and without SLI were asked to recall verbal and spatial stimuli in situations that varied the number of tasks that were required and the speed at which stimuli were presented. Children…

The role of risk taking in building trust relations has largely been overlooked in the burgeoning literature on trust in the social sciences; yet it is central to understanding how trust develops. We argue that a series of risk-taking behaviors is indispensable to building a trust relation. We conducted experiments in Japan and the United States…

"Theory of mind" development is now an important research field in deaf studies. Past research with the classic false belief task has consistently reported a delay in theory of mind development in deaf children born of hearing parents, while performance of second-generation deaf children is more problematic with some contradictory results. The…

This paper presents a user-centred design and evaluation methodology for ensuring the usability of IR interfaces. The methodology is based on sequentially performing: a competitive analysis, user task analysis, heuristic evaluation, formative evaluation and a summative comparative evaluation. These techniques are described, and their application…

Reports the preliminary results of an ongoing study of the benefits of building repetition into a communicative task in an English for Specific Purposes course. Compares the performances of two learners at markedly different levels of English proficiency and finds that both benefited from the opportunity to recycle communicative content as they…

The current work examined age differences in the classification of novel object images that vary in continuous dimensions of structural shape. The structural dimensions employed are two that share a privileged status in the visual analysis and representation of objects: the shape of discrete prominent parts and the attachment positions of those…

This study compares 27 sixth grade students who have been learning Spanish since kindergarten with 5 who have had Spanish for only 1 year using a battery of Spanish oral and written tests. The students who started early out performed the new students in listening, speaking, and writing Spanish. Those who started early also displayed a positive…