Examined patterns of intellectual differences among children (n=300) of different ethnic groups on Wechsler Intelligence Scale for Children-Revised. Results indicated that when overall intelligence quotient was held constant, Black children performed better on verbal tasks, Hispanic children performed better on visual-spatial tasks, and White…

Compares speech-related (coverbal) gestures in brain-damaged patients (aphasics and visuo-spatial deficits) and in matched controls. Results suggest ideational gestures probably facilitate word retrieval and reflect transfer of information between propositional and non-propositional representations during message construction, and that conceptual…

Argues that external cues provide affective information that influence processing strategy and, therefore, examination performance. Notes the differences in performance for two midterm examinations, identical, except that they were printed on blue and red paper. Discusses a method for appropriately adjusting scores to control for form effects.…

A study explored working memory (WM) capacity, WM task requirements, as well as effects between WM, skills, knowledge base, and intelligence in adults with mental retardation and children aged 3-6 years. Adults were better on measures reflecting skills and knowledge base. Children performed better in phonological and visuo-spatial WM tasks.…

A study investigated letter orientation confusions (reversals) in the reading and writing of 10 children with reading disabilities and 10 typical readers (age 10). Individuals with reading disability made more orientation confusions. Orientation errors were more frequent for reversible than for nonreversible items in tasks involving long-term…

Children's visual literacy can be enhanced by focusing their attention on aspects of the natural or built environment in the local community. Two activities use photographs and field trips to provide the building blocks of visual literacy: challenging activities, inquiry and problem solving, curiosity and the unexpected, and culture-based…

Recent findings [Turcotte, Gagnon, & Poirier, 2005. The effect of old age on the learning of supra-span sequences. "Psychology and Aging," 20, 251-260.] indicate that incidental learning of visuo-spatial supra-span sequences through immediate serial recall declines with old age (Hebb's paradigm). In this study, we examined whether…

Background: Frith and Happe (1994) describe central coherence (CC) as the normal tendency to integrate individual elements into a coherent whole, a cognitive style which varies in the general population. Individuals with autism are at the extreme (weak) end of the continuum of coherence. There has been debate over whether CC is independent from…

Background: Brain activation differences between 12 control and 12 attention deficit hyperactivity disorder (ADHD) children (9- to 12-year-olds) were examined on two cognitive tasks during functional magnetic resonance imaging (fMRI). Method: Visual selective attention was measured with the visual search of a conjunction target (red triangle) in a…

Williams syndrome (WS) is often cited as the prime example within developmental disorders of the dissociation of language from other cognitive skills, particularly from visuo-motor skills. This claim has been responsible for the challenges posed by this population to cognitive theories and to models of language acquisition. Two Hebrew-speaking…

We report four experiments designed to determine whether visual information affects judgments of acoustically-specified nonspeech events as well as speech events (the "McGurk effect"). Previous findings have shown only weak McGurk effects for nonspeech stimuli, whereas strong effects are found for consonants. We used click sounds that…

We have previously reported in this journal that spatial ability influences academic performance in engineering. We have also reported that spatial ability is trainable, and can be increased through instruction focused on using perception and mental imagery in three-dimensional representation. In this article, we present the results of a…

In educational settings, computers provide specific possibilities of visualizing information for instructional purposes. Besides the use of static pictures, computers can present animated pictures which allow exploratory manipulation by the learner and display the dynamic behavior of a system. This paper develops a theoretical framework for…

A study investigated how different combinations of background color, text brightness and text color in Chinese CAI (computer assisted instruction) software programs may influence the affection, perception, and cognition of elementary school students in Taiwan. A sample size of 332 was drawn from the sixth-grade students of 2 elementary schools.…

The concept of shape often enters introductory cultural geography textbooks through the subject of political geography. This paper focuses on a quantitative way to introduce the concept of shape to students of cultural geography. The measure used in this approach was to compare the perimeter of the sovereign state with the perimeter of a circle…