Mental rotation (MR) is the ability to transform a mental representation of an object so as to accurately predict how the object would look from a different angle (Sci 171:701-703, 1971), and it is involved in a number of important cognitive and behavioral activities. In this review we discuss recent studies that have examined MR in infants and…

Adults and children (5- and 8-year-olds) performed a temporal bisection task with either auditory or visual signals and either a short (0.5-1.0s) or long (4.0-8.0s) duration range. Their working memory and attentional capacities were assessed by a series of neuropsychological tests administered in both the auditory and visual modalities. Results…

The present review summarizes historic and recent research which has investigated the role of the corpus callosum in dichotic processing within the context of audiology. Examination of performance by certain clinical groups, including split brain patients, multiple sclerosis cases, and other types of neurological lesions is included. Maturational,…

Objective: To study the effects of green tea extract administration on age-related cognition in young and old male Wistar rats. Methods: Young and old rats were orally administered 0.5% green tea extract for a period of eight weeks and were evaluated by passive avoidance, elevated maze plus paradigm and changes in acetylcholinesterase activity.…

Subjects ranged from 60 to 90 years old. (MS)

Five-year-olds, 9-year-olds, and adults were compared in a successive tachistoscopic recognition task in which size of the first array and the interval between the first array and the second single recognition-test stimulus were varied. (Author/SB)

Explores the nature and consequences of developmental change in speed of information processing. Summarizes evidence indicating that age differences in processing speed reflect a global mechanism that limits processing speed on most tasks. Describes evidence that suggests a role for processing speed on the development of intelligence. (Author/MKA)

First and fifth graders sorted cards into two piles based on the orientation of a T figure. Sorting took place in the presence of irrelevant information which did or did not contrast in line slope with the target, or in the absence of irrelevant information. (Author/JMB)

Two experiments investigate the changes in the accuracy of children's cognitive maps of a large-scale environment that occur as a function of specific and repeated experience. Subjects were 20 boys and girls of three grade levels: kindergarten, second and fifth grades. (MP)

In this study, third and sixth graders were tested in a recognition memory task with short lists of items from either one or two categories to investigate the influence of categorical information on retrieval processes. (Author/SB)

The relative effectiveness of semantic and structural retrieval cues was examined in men of three age groups: Group 1 (aged 20-39), Group 2 (aged 40-59), and Group 3 (aged 60-80). (Author/JMB)

Investigates whether age differences in memory span are affected by type of material, with the aim of making inferences about capacity. Subjects were 30 boys and girls from each of three elementary school grade levels (first, third and sixth). (Author/MP)

This study examined (1) whether subjects of different ages tend to rely on different kinds of visual information when given a choice; and (2) whether the ability to use spatial and identity information accurately in a recognition task changes developmentally. (Author/SB)

The category item production task was used to obtain child norms and to investigate two alternative types of category bias reputedly shown by young children: (a) underinclusion of appropriate items; and (b) overinclusion of inappropriate items. Preschool and grade school children (n=144) were asked to produce verbal responses to four category…

The Bransford and Franks paradigm of linguistic abstraction was used to examine age differences in the nature of stored semantic information. (Author/SB)