The detection of errors is known to be associated with two successive neurophysiological components in EEG, with an early time-course following motor execution: the error-related negativity (ERN/Ne) and late positivity (Pe). The exact cognitive and physiological processes contributing to these two EEG components, as well as their functional…

The first purpose of this study was to investigate whether the visuospatial working memory (VSWM) skills of 15-16-year-old pupils with difficulties in mathematics differ from those of their normally achieving peers. The goal was to broaden the view of the complex system of VSWM. A set of passive and active VSWM tasks was used. The study's second…

Background: Cognitive dysfunction is frequent in Cerebral Palsy (CP). CP motor impairment and associated speech deficits often hinder cognitive assessment, with the result being that not all CP studies consider cognitive dysfunction. Raven's Coloured Progressive Matrices is a simple, rapid test which can be used in persons with severe motor…

We developed the three-dimensional visualization software, Tonal Interface to MacroMolecules or TIMMol, for studying atomic coordinates of protein structures. Key features include audio tones indicating x, y, z location, identification of the cursor location in one-dimensional and three-dimensional space, textual output that can be easily linked…

This study explored the contribution of the phonological and executive working memory (WM) systems to 205 (102 girls, 103 boys, 6 to 9 years old) elementary school children's fluid and crystallized intelligence. The results show that (a) a 3-factor structure (phonological short-term memory [STM], visual-spatial WM, and verbal WM) was comparable…

Standardized psychological assessment provides a precise yet limited view of the neuropsychological status of preschool toddlers, whose brain functioning is only beginning to develop localized functioning. Yet, referrals for preschool evaluation of these early-age children often request a wide variety of information about brain-behavior…

Children's number sense in kindergarten was used to predict their calculation fluency in second grade (N = 198). Using block entry regression, usual predictors of age, reading, memory, and verbal and spatial cognition were entered in the first block and number sense measures were added in the second block. Number sense measures contributed a…

This study investigates the effects of using both specific labels and diagrammatic arrows in the animation of salt dissolution. Four different versions of the animation served as treatments that were developed based upon principles of educational technology and cognitive psychology. The researchers studied the effects of spatial ability (high or…

A study tested the possibility that children 16-24 months old and 6-7 years old can code distance without the use of landmarks. Younger children sat with their mothers at the side of a sandbox and watched the experimenter hide a toy in the sand. After being distracted, the children looked for the toy in the box. Nine trials were used, with toys…

The effect of perceptual speed on performance and paper-and-pencil measures of spatial ability is examined. Perceptual speed is defined as speed in comparing figures or symbols, scanning to find figures or symbols, or carrying out other very simple tasks involving visual perception. It was hypothesized that perceptual speed would have more…

Considers aspect of Muchow's work that are relevant for developmental psychology, including her emphasis on the contextual matrix of child behavior, her interest in the sphere of children's action in relation to their cognition of the environment, and methodological implications in her work. (Author/SO)

David, who from September 1971 to February 1984 actively lived his life in a sterile isolator, was severely deprived of experience of the physical world. His difficulty with the concepts of space, depth, and size related clearly to his limited experience rather than to cognitive or visual-motor-perceptual deficits. (Author/CL)

Research on the effects of visual perception and orientation difficulties on academic, communication, and social development of deaf children is reviewed. The need for incorporating methods for remediating learning disabilities into preservice training for teachers of the deaf is emphasized. (CL)

To examine similarly complex spatial tasks, a battery of spatial and logical tests were administered daily for 12 weeks to the total population of a middle school for gifted children. Two cognitive styles were identified: rapid recognition and spatial reconstruction. (Author/CL)

Investigates the ability of four-, five-, and six-year-olds to locate their starting point and retrieve an immobilized object after being blindfolded and moved. Results indicate that, while children as young as four years can coordinate an initial egocentrated target location with what they believe to be their starting point, computation of the…