Two experiments conducted with 49 Chicano high school students, aged 15-17, found that balanced-proficient bilingual speakers had slower rates of cognitive information processing at the level of short-term memory than did unbalanced bilingual speakers. The groups did not differ in rates of cognitive information processing at the simpler level of…

This study explored the relationship between traditional item difficulty and cognitive complexity as measured by response time. Rural students (n=43) responded to computer-based tests of the Individualized Study by Technology General Mathematics Course developed by Alaska's Department of Education. Results indicated that mean response times were…

Background: Williams syndrome (WS) and Down syndrome (DS) are two neurodevelopmental genetically based disorders which exhibit mental retardation with a unique cognitive profile. Naming in individuals with WS and DS has been investigated in several studies, with results indicating that the performance of children with WS and DS is at a similar…

What brain mechanisms underlie autism, and how do they give rise to autistic behavioral symptoms? This article describes a neural model, called the Imbalanced Spectrally Timed Adaptive Resonance Theory (iSTART) model, that proposes how cognitive, emotional, timing, and motor processes that involve brain regions such as the prefrontal and temporal…

Every sentence conveys a temporal point of view through its aspectual meaning. This viewpoint arises through presenting a situation from a certain temporal perspective and indirectly classifying the situation as an exemplar of an idealized situation type. The information is conveyed by the aspectual categories of a language. This paper presents a…

As part of a study to determine whether visual and manual response systems are correlated, 26 children between 40 and 51 months of age took part in visual and manual reaction time (RT) tasks. Subjects, whose RTs had previously been tested at 3 months of age, were tested in 1 of 2 conditions. In the first condition, subjects viewed pictures only…

Three researchers, addressing the problem of instructional improvement, identify sound research findings and cite problems associated with the transfer of these findings into classroom practice. Donald M. Medley, in "An Overview of Research on Classroom Teaching," identifies three variables which consistently differentiate between effective and…

The final report consists of three studies on aspects of a common theme, that a hearing impaired (HI) person's performance on information processing tasks depends on interactions of that person's cognitive structure and strategies with properties of materials to be processed and task demands. The first study, "Recall of Temporal/Spatial…

Only a fraction of one percent of elementary school children in the United States are enrolled in the study of a foreign language, yet the United States must compete in a multilingual world market. American educators must reevaluate the means by which they prepare future citizens for productive living in an ever-shrinking global society. Piaget,…

The question of whether performance measures may be more accurate than examination methods to assess an individual's abilities and knowledge is examined, based on a literature review. An information processing view that focuses on the internal activities of thinking and the relationship to external stimuli is considered. Information processing…

A 1978 study (Torgesen, Bowen and Ivey) of the structure and modality variables of the Visual-Aural Digit Span (VADS) test was replicated to determine: (1) if the effects generalized across age; (2) if differences between simultaneous and sequential visually presented items were due to mode of presentation or the amount of study time; (3) the…

Fifty-five recent studies of individual differences (IDs) in elementary cognitive tasks (ECTs) are reviewed. Twenty-five data sets are examined, analyzed, or reanalyzed by factor analysis. The following promising dimensions are identified: basic perceptual processes, reaction and movement times, mental comparison and recognition tasks, retrieval…

Twenty high mental age (MA) subjects and 33 low MA subjects who had been in a free word association test 30 months previously were retested with the Moran 80-Word List. At the time of the previous testing, subjects in the high group had a mean chronological age (CA) of 17.1 and mean MA of 11.5; subjects in the low group had a mean CA of 15.3 and…

Visual and auditory stimuli were presented to children to measure symbol processing abilities. Slides which required matching the similarities in two objects in a group of three were presented. At times the matching criteria varied between function, color, and form. Reaction time was quicker when matching by color than by function, which was…

The effect of presentation time on learning under varying mediation instructions demonstrated a time-dependent difference in the facilitating effect of imagery generation or sentence generation instructions. Subjects were junior high school students working in a paired associate task with concrete nouns. Both cognitive strategies were more…