Notes that high-resolution magnetic resonance imaging allows in vivo quantification of the surface area of the cortex covering the planum temporale. Reviews the definition of planum asymmetry as it relates to structural accompaniments of disorders such as developmental dyslexia and to anatomic and functional lateralization. Finds support for the…

In the neurolinguistic approach to the study of the acquisition of reading and writing, language may be used to express thoughts and intellectual attitudes as well as emotions and emotional attitudes. Experimental studies and clinical data suggest that grammatical rules for spoken language predominantly rely on the left hemisphere of the brain,…

A review of studies into the neurological aspects of reading disabilities indicates that two positions have been taken with regard to the brain and reading: (1) language skills are generally considered to be the function of the left hemisphere of the brain; and (2) very poor reading may be related to bilateral spatial processing for both boys and…

Acknowledging the importance of sight to the writing process, the paper elucidates the processes of vision related to the composing process. In the opening section the physics of light and vision, optic neuroanatomy, and cortical responses to visual stimuli are explained. Next, theories of vision and data mapping are examined and their…

Discusses some current concepts of the laterality/reading relationship. An overview of Samuel T. Orton's hypotheses of cerebral dominance and "strephosymbolia" is provided, and both visual half-field and dichotic listening studies as direct, empirical tests of laterality are discussed. (MKM)