Chapter

Nonverbal Learning Disabilities

Yitzchak Frank

in Specific Learning Disabilities

Published on behalf of Oxford University Press

Published in print June 2014 | ISBN: 9780199862955
Published online November 2014 | e-ISBN: 9780199374564 | DOI: https://dx.doi.org/10.1093/med/9780199862955.003.0013
Nonverbal Learning Disabilities

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Ever since the time of Broca (1861) and Wernicke (1874), neurobiologists have been trying to map different functions to one or both cerebral hemispheres, mainly through the study of patients with acquired lesions, head trauma, and strokes; later by intracarotid injections and cortical stimulation’ and more recently by functional magnetic resonance imaging (fMRI). Nonverbal learning disability (NWLD), is sometimes referred to as “right hemisphere” LD, (Rourke, 1987; and as developmental right hemisphere dysfunction (Tranel et al., 1987). Ten percent of learning disabilities are of this type (Beitchman & Young, 1997). The underlyi Some focuses on exact nng cognitive abnormality is not in the language-verbal domain. The main manifestations are deficits in arithmetic, visuospatial-constructive abilities, and social skills (Weintraub & Mesulam, 1983; Semrud-Clikeman & Hynd, 1990). Academically they may have more difficulties with math. Psychological tests reveal marked disparity between the verbal and performance components of the Wechsler Intelligence Scales in which VIQ is higher than PIQ.

Chapter.  5151 words. 

Subjects: Neurology

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