Among conclusions of this review of findings regarding contemporary neuropsychology and cerebral hemisphere specialization as related to learning disabilities are: (1) differential specialization occurs very early; (2) anomalous hemispheric specialization is not necessarily associated with cognitive deficit; and (3) left- and right-hemisphere…

Electroencephalographic power spectra were studied in two poor-reading adolescent groups (n=38), dysphonetic and phonetic. Significant Group x Hemisphere effects were found in the alpha and beta bands, with the phonetic group showing right greater than left asymmetry. Results suggest more circumscribed and mature processing in the phonetically…

The exploratory study examined patterns of regional cerebral blood flow in a surface and a deep dyslexic during reading. Significant differences in gray matter blood flow were found between subjects and normal controls. Also differences existed between the surface and deep dyslexic in the distribution of cortical perfusion. (Author/DB)

This brief introduction to E. Jan Kappers' article "Outpatient Treatment of Dyslexia through Stimulation of the Cerebral Hemispheres" reviews the lifetime work of Kappers in the field of dyslexia. (CR)

The construct validity of Boder's typology of dyslexia was investigated using quantified electroencephalography with 39 children (ages 7-11) during a reading task and at rest. Results supported beta frequency differences in anticipated regions by dyslexia subtype during the reading task. However, the direction of difference hypothesis was not…

This article summarizes work in progress at the Bowman Gray School of Medicine (North Carolina) on the structure and physiological profiles of reading disability and relates the findings to core left-hemisphere language functions. Data add evidence of the structural anomalies associated with dyslexia and evidence of its heritability, especially of…

Integrated treatment methods of neuropsychological and cognitive origin were evaluated with 80 Dutch children (ages 6-15) with severe dyslexia. Treatment with flash cards, which exercised automatic letter-sound conversions, had a robust and slight effect in preclinical and clinical phases respectively, whereas hemisphere stimulation produced…

This study reports clinical characteristics of developmental right-hemisphere syndrome, a nonverbal learning disability, in 20 children (mean age 9.5 years) who also manifested attention-deficit/hyperactivity disorder, graphomotor problems, and slow performance. Diagnostic criteria included emotional and interpersonal difficulties, paralinguistic…

The area of adult learning disabilities is reviewed from a neurobiological and neuropsychological perspective. The paper covers possible pathophysiologic bases in dyslexia, neurobehavioral disorders that may coexist with learning disorders, neuropsychological assessment methods, treatment in the context of brain plasticity and recovery of…

This article introduces two conference papers (EC 607 450 and 451) which discuss the link between basic research into brain structure and function and the applied issues of instructional intervention in dyslexia. The papers, based on longitudinal studies at the Bowman Gray School of Medicine (North Carolina), were presented at a Middle Tennessee…

Reviews current research on brain-behavior relationships in disabilities of arithmetic and mathematical reasoning from both a neurological and a neuropsychological perspective. Defines developmental dyscalculia and the developmental importance of right versus left hemisphere integrity for the mediation of arithmetic learning and explores…

This article discusses recent findings concerning cognitive outcomes in traumatic brain injury (TBI) in children and adolescents, with a particular focus on age differences with TBI. It suggests a relationship between specific learning disorders and brain dysfunction, addresses differential hemispheric functioning with TBI, and outlines recent…