This study of 38 right-handed children (age range 90 to 201 months) with dyslexia found characteristic patterns of organization of intellectual functions, of hemispheric specialization, and of reading errors in the subtypes, identified as linguistic dyslexia, perceptual dyslexia, and mixed dyslexia. (DB)

Among 424 Navajo and Hopi high school students, teachers, parents, and Anglo teachers, all Indian groups differed significantly from national norms in brain dominance or learning style. Mismatches between teaching styles and learning styles occurred between Anglo teachers and all Indian students and between Navajo teachers and students. Contains…

Discusses several technical, psychological, and philosophical reasons for the underestimation of reflective teaching that make use of nonrational teacher behavior. Several techniques are described for the promotion of reflection on nonrational processes, such as the use of metaphors, drawing or painting, making photographs, and guided fantasy.…

Explores research on the concepts of intelligences and giftedness. Considers the importance of the brain, its organization and functions, different theories about intelligence and the possibility of boosting it, and changes that occur in brain structure as a consequence of the interactions between genetic traits and experiences. (Author/CR)

The assessment profiles of 30 school-age children identified with either nonverbal or language-based learning disabilities were examined using a self-organizing systems paradigm. Results suggest that overflow into areas not typically associated with each disability subtype may occur. Concerns regarding ways of determining discrepancy for…

There is much debate as to the extent and nature of functional specialization within the different subregions of the prefrontal cortex. The current study was undertaken to investigate the effect of damage to medial prefrontal cortex subregions in the rat. Rats were trained on two biconditional discrimination tasks, one auditory and one visual, in…

Background: The aim of this study was to investigate attention orienting triggered by another's gaze direction in autism. Method: Twelve high-functioning children with autism and gender- and age-matched normal control children were studied using two tasks. In the first task, children were asked to detect laterally presented target stimuli preceded…

This study proposes an interactive model of "cross-domain" concept mapping with an emphasis on brain functions, and it further investigates the relationships between academic achievement, creative thinking, and cross-domain concept mapping. Sixty-nine seventh graders participated in this study which employed two 50-minute instructional…

There is a burgeoning interest in the neural basis of the ability to attribute mental states to others; a capacity referred to as "theory of mind" (ToM). We examined the effects of lesions of the amygdala which arise at different stages of development on this key aspect of social cognition. Tests of ToM, executive and general neuropsychological…

Although lexical decision remains one of the most extensively studied cognitive tasks, very little is known about its relationship to broader linguistic performance such as reading ability. In a correlational study, several aspects of lateralized lexical decision performance were related to vocabulary and reading comprehension measures, as…

The purpose of the present study was to evaluate whether verbal fluency tasks may specifically induce relatively greater left than right hemispheric activation in the dorsolateral prefrontal cortex. The effectiveness of the manipulation was evaluated by EEG, which was recorded during performance of the verbal fluency task and during two control…

We tracked the evolvement of naming-related cortical dynamics with magnetoencephalography when five normal adults successfully learned names and/or meanings of unfamiliar objects. In all subjects, the learning of new names was associated with pronounced cortical effects. The learning effect was of long latency and emerged as a change of activation…

Schizophrenia is a highly heritable disorder that typically develops in early adult life. Structural imaging studies have indicated that patients with the illness, and to some extent their unaffected relatives, have subtle deficits in several brain regions, including prefrontal and temporal lobes. It is, however, not known how this inherited…

Event-related potentials (ERPs) to tone pairs and single tones were measured for 16 participants with specific language impairment (SLI) and 16 age-matched controls aged from 10 to 19 years. The tone pairs were separated by an inter-stimulus interval (ISI) of 20, 50 or 150 ms. The intraclass correlation (ICC) was computed for each participant…

Previous research has indicated that 70-85% of women and girls show a bias to hold infants, or dolls, to the left side of their body. This bias is not matched in males (e.g. deChateau, Holmberg & Winberg, 1978; Todd, 1995). This study tests an explanation of cradling preferences in terms of hemispheric specialization for the perception of facial…