Throughout prolonged tasks, visual attention fluctuates temporally in response to the present stimuli, task demands, and changes in available attentional resources. This temporal fluctuation has downstream effects on memory for stimuli presented during the task. Researchers have established that detection of a target (e.g., a square of a color to…

Background: Episodic memory deficits are a characteristic of cognitive dysfunction in people with Down syndrome (DS). However, less is known about the processes (i.e. encoding, retention or using learned information flexibly) that underlie these deficits. Method: We explored these abilities by administering a relational memory and inference task…

Purpose: The purpose of the current study was to explore nonlinguistic learning ability in individuals with aphasia, examining the impact of stimulus typicality and feedback on success with learning. Method: Eighteen individuals with aphasia and 8 nonaphasic controls participated in this study. All participants completed 4 computerized,…

ADHD in adulthood is associated with chronic academic impairments and problems with strategic memory encoding on standardized memory assessments, but little is known about self-regulated learning that might guide intervention. Objective: Examine the contribution of metamemory judgment accuracy and use of learning strategies to self-regulated…

The domain of figurative language comprehension was used to probe the developmental relation between language and cognition in typically developing individuals and individuals with Williams syndrome. Extending the work of Vosniadou and Ortony, the emergence of nonliteral similarity and category knowledge was investigated in 117 typically…

To investigate the effect of several cueing methods on paired-associate learning, 48 adult subjects were asked to learn pairs of city names and corresponding airport codes using special cueing procedures or standard anticipation procedures. Visibility of the response term, and hence cue strength, was varied tachistoscopically, adjusting the…

Studies of monolingual speakers have shown a strong association between lexical learning and short-term memory (STM) capacity, especially STM for serial order information. At the same time, studies of bilingual speakers suggest that phonological knowledge is the main factor that drives lexical learning. This study tested these two hypotheses…

Children and adults learned associations between line length and color. Subjects were then presented with pairs of colors and asked to choose the color that had been associated with the longer line. For all ages, choice reaction times were related to differences in, and ratios of, line lengths. (BC)

Two kinds of paired associate lists (complementary and similarity relationships) were presented to middle-aged and elderly subjects for free recall. (DP)

Research supported by grant HD-02025 from the National Institute of Child Health and Human Development, U.S. Public Health Service.

A conceptual framework of a process by which persons assess and express levels of sureness in the correctness of responses which they anticipate making--or having already made but not yet received knowledge of results--is proposed. It is hypothesized that the rate at which a person's behavior is modified by knowledge of results is affected by the…

Adults learned the meanings of rare words (e.g., gloaming) and then made meaning judgments on pairs of words. The 1st word was a trained rare word, an untrained rare word, or an untrained familiar word. Event-related potentials distinguished trained rare words from both untrained rare and familiar words, first at 140 ms and again at 400-600 ms…

Three experiments compared congenitally blind and sighted adults and children on paired-associate, free-recall, and imaging tasks presumed to involve visual imagery in memory. In all three, blind subjects' performances were remarkably similar to the sighted. Results challenge previous explanations of performance such as Paivio's (1971). (Author/RD)

Many studies have analysed how goal directed movements are corrected in response to changes in the properties of the target. However, only simple movements to single targets have been used in those studies, so little is known about movement corrections under more complex situations. Evidence from studies that ask for movements to several targets…