Reactions to H. Lee Swanson's paper "Toward a Metatheory of Learning Disabilities" are outlined, and his arguments are applied to reading disabilities, focusing on the importance of the scientific attitude, the misuse of ecological validity, interpretation of Thomas Kuhn's work, modularity and reading disability, and scientific progress…

Two methodological problems often arising in dyslexia research are considered. The first problem concerns the validity of experimental measures and the related problem of interpreting null results. The second problem involves the effects of sampling from a disabled population if the disorder under investigation has multiple unknown origins.…

In response to a previous article, the paper stresses that, in addition to theory development, the field of learning disabilities needs to resolve definitional issues involving disability specificity, intelligence, measurement concepts, and the continua of abilities. Suggestions for developing operational definitions of both learning disabilities…

In response to a previous article, the paper finds weaknesses in the mechanistic worldview represented by the emphasis on information processing research in constructing a metatheory for learning disabilities. An alternative--contextualist--world view is proposed which is holistic, social, and developmental providing insight into processes of…

In response to articles concerning the author's earlier paper, the paper responds to criticisms concerning contextualism, the role of metatheory, distinctions between basic and applied research, cognitive components and specificity, the science of learning disabilities, neurological indices, model validation, and the nature of learning…

Summarized are three research articles on the following topics: the role of pupil size in communication, educational aspects of hemispheric specialization, and the effects of maternal psychological stress on the fetus. (DB)

This article reviews studies evaluating neurocognitive changes following organ transplantation in pediatric end-stage renal and liver disease. Findings suggest possible neurocognitive benefits associated with organ transplantation. Recommendations are made for methodological improvements in future research. (DB)

Reviews the methods, technologies, and operating tenets of case studies of reading disabilities completed during the late 19th and early 20th centuries. Results suggest that the assumptions of anatomical and functional modularity for cortical processes become guiding principles for diagnosing and correcting reading difficulties. (Author/CR)

Fundamental assumptions concerning the cause of learning disabilities are described and criticized. At a broader level, research and theory in three different paradigms are discussed: (1) neuropsychological; (2) information processing; and (3) applied behavior analysis. Four recommendations for future progress in the conceptualization and…

The article reviews literature on the information processing model with learning disabled children. Assumptions concerning the role of automaticity, prior knowledge, and executive functioning are questioned. Also discussed are procedures for identifying common denominations, subgrouping, isolating mental components underlying academic change, and…

Among findings were that as reading proficiency increased, ability to use graphic information increased considerably, although not significantly; and low readers were least efficient in their use of grammatical form class cues, with their errors more often than not being of a different form class. (SBH)

Analysis of errors by more than 300 kindergarten children on the Boehm Test of Basic Concepts suggested seven cognitive factors that appear to be involved, including complexity of directions, deficits in spatial perception, and inadequate auditory memory for sentences. (CL)

Moderately and severely learning disabled boys were evaluated in terms of constructs of reflection-impulsivity and field dependence-independence, which concerns cognitive style and whether one is able to perceive and utilize discrete elements of his perceptual field. (KW)