Used steady-state probe topography to investigate the cortical activity of 12 average and 12 high IQ Australian college students during a spatial working memory task. Results, in terms of changes in visual evoked potentials, suggest that the areas of the brain involved in working memory are influenced by individual differences in intelligence.…

Although metamemory has recently received renewed interest by several investigators, individual differences in memory skills have received little if any attention. While individual differences in memory skills have common sense validity, these differences have been difficult to document experimentally. This study used a repeated measures design to…

The influence of two sources of individual differences in acquiring knowledge from maps was studied: abilities and learning procedures. Twenty-five undergraduate students provided verbal protocols while attempting to learn two maps, and six effective learning procedures were identified: partitioning, imagery, memory-directed sampling, pattern…

Individual differences in verbal/analytic and nonverbal/holistic cognitive strategies were studied in relationship to performance levels in spatial tasks, sex and handedness. Analytic processes are described as sequential, resulting in decomposition of stimulus information, and holistic processes, as parallel, involving information synthesis.…

Three hypotheses accounting for individual differences in spatial visualization ability were investigated in 2 experiments with 142 male undergraduates at Georgia Institute of Technology (Atlanta). Support was found for the preservation-under-transformation hypothesis, suggesting that effectiveness of storage during concurrent information…

Twenty-eight engineering students were presented with complex spatial problems to investigate the effects of spatial aptitude and strategy selection on problem solving. Aptitude was determined by spatial aptitude test scores and strategy was determined by verbal reports and latency measures. It was found that aptitude determined the efficiency…

Previous research on the nature of aptitude processes had ignored the important differences between speed and level of performance. However, investigations of the relationship between individual differences in speed and level suggest that speed of solving simple spatial tasks is largely independent of level attained on more complex spatial tasks.…

Strategic differences in spatial tasks are explained in terms of different cognitive coordinate systems that subjects adopt such as standard versus arbitrary, task-defined axes. A theoretical account of mental rotation of individuals of low and high spatial ability solving problems from psychometric tests is instantiated as computer simulation…

Undergraduates (n=99) differing in spatial ability were tested on problems involving the mental rotation of familiar alphanumeric stimuli and unfamiliar stimuli drawn from the Primary Mental Abilities Space Test. Individual differences in spatial ability were associated with speed rather than accuracy of mental rotation processes. Ability…

Individual differences in performance on 4 computer-controlled visual memory and recognition tasks as a function of performance on 5 paper-and-pencil spatial tests were studied for 90 psychology students attending the University of Rennes (France). Results show that spatial thinking is partially supported by visual memory. (SLD)

Information coordination tasks are tasks that require concurrent performance of two or more component tasks and the subsequent coordination of component information. In this experiment, different procedures, componential and contextual, were used to train separate groups of college campus community members (n=35 and n=33) in a coordination task…

A conceptual theory for predicting the relations between intellectual abilities and performance during task practice is proposed and is evaluated through an experiment with high school and college students. This macro-theory integrates hierarchical theories of intellectual abilities with information-processing theories of automatic and controlled…

An information-processing model was tested for a laboratory visualization task that represents one adaptation of a standardized spatial ability test. The pattern of results suggests that individual differences are a function of differences in the accuracy and/or quality of the mental representation, not just speed of processing. (Author/BW)

Two experiments investigated learners' procedures in acquiring knowledge from maps. The better learners used successful techniques for encoding spatial information, evaluating their progress, focusing attention on unlearned information, and partitioning the map by spatial region or concept. Visual memory ability was also important. (Author/GDC)

Two experiments were conducted to study the development of mental rotation abilities in late childhood, adolescence, and adulthood. Subjects were third, fourth, and sixth graders, and college students. (MP)