Imagery is a multi-componential process involving different mental operations. This paper addresses whether separate processes underlie the generation, maintenance and transformation of mental images or whether these cognitive processes rely on the same mental functions. We also examine the influence of age on these mental operations for…

Relatively little is known about the functional development of verbal and nonverbal working memory during adolescence. Behavioral studies have demonstrated that WM capacity increases with age, yet relatively few studies have assessed the relationship between brain-activity and age-related changes in WM capacity, especially as it differs across…

This study demonstrated effects of age, education, and sex on complex reaction time in a large national sample (N = 3,616) with a wide range in age (32-85) and education. Participants completed speeded auditory tasks (from the MIDUS [Midlife in the U.S.] Stop and Go Switch Task) by telephone. Complexity ranged from a simple repeated task to an…

The present study examined performance on a computerized version of the Wisconsin Card Sorting Test (WCST) in participants between 6 and 18 years. Test trials were presented upon request, without time constraints, and with a direct coupling between the participant's response and the onset of the feedback. The pattern of findings that emerged from…

Odor naming and recognition memory are poorer in children than in adults. This study explored whether such differences might result from poorer discriminative ability. Experiment 1 used an oddity test of discrimination with familiar odors on 6-year-olds, 11-year-olds, and adults. Six-year-olds were significantly poorer at discrimination relative…

Eye-tracking technology was employed to examine young and older adults' performance in the reading with distraction paradigm. Distracters of 1, 2, and 4 words that formed meaningful phrases were used. There were marked age differences in fixation patterns. Young adults' fixations to the distracters and targets increased with distracter length.…

Purpose: When understanding speech in complex listening situations, older adults with hearing loss face the double challenge of cochlear hearing loss and deficits of the aging auditory system. Wide-dynamic range compression (WDRC) is used in hearing aids as remediation for the loss of audibility associated with hearing loss. WDRC processing has…

Two experiments explored the existence and the development of relations between action representations and object representations. A priming paradigm was used in which participants viewed an action pantomime followed by the picture of a tool, the tool being either associated or unassociated with the preceding action. Overall, we observed that the…

Two experiments examined toddlers' performance on a new task designed to examine the development of body self-awareness. The new task was conceived from observations by Piaget (1953/1977) and theoretical work from Povinelli and Cant (1995) and involved a toy shopping cart to the back of which a small mat had been attached. Children were asked to…

Two tasks hypothesized to assess the efficiency of route selection were administered to 328 adults ranging from 18 to 93 years of age. Increased age was associated with slower completion of mazes, even after adjusting for differences in perceptual-motor speed, and with longer and less accurate routes in a task in which participants were asked to…

In two experiments on very young children's response to the orientation of pictures and objects, 18-, 24- and 30-month-old children showed no preference for upright pictures over inverted ones. More importantly, we found that children in all three age groups were equally accurate and equally fast at identifying depicted objects regardless of…

Children of ages 5 and 8 years were given one of three learning tasks: a component selection problem, in which the two components of the stimuli were redundant and could both serve as functional cues, and two incidental learning tasks, in which one stimulus component was task-relevant and the other was incidental. Results suggest a developmental…

Three-, four- and five-year-old children were presented an array of metamemory tasks designed to test their understanding of variables which affect the difficulty of memory performance. (JMB)

Relates the problem-solving behavior of second, fourth, and sixth graders to conceptual tempo. Correlations with indices of strategic and efficient performance on a pattern-matching task confirmed that reflectives are more strategic than impulsives. A task-analysis identified the sources of inefficiency for each child and related these sources to…

Investigated the development of syntactic awareness in Cantonese-speaking children. Fifty-six subjects from four age groups were asked to judge the grammaticality of 40 sentences and to correct the grammatically-deviant sentences. There was a significant age effect on subject's performance in both judgment and revision tasks. (Author/VWL)