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Definition: cerebral dominance from Dictionary of Psychological Testing, Assessment and Treatment

The control of other brain functions by the cerebral cortex.

Summary Article: left and right hemispheres of the brain
from Greenwood Dictionary of Education

Like most of the body, the brain is symmetrical; it is made up of two (mostly) symmetrical hemispheres (each hemisphere then has four lobes). While some functions are localized in most individuals (for example, usually language processing is carried out mostly in the left hemisphere), many activities require the work of both hemispheres. Often, more detailed processing takes place in the left hemisphere, while “holistic” processing takes place in the right hemisphere. Each hemisphere contains a motor cortex and somatosensory cortex that correspond to the opposite side of the body (right hemisphere: left half of body; left hemisphere: right half of body). Most individuals have a dominant side (e.g., in a left-handed person, the right hemisphere motor cortex is dominant), but again most activity requires an integration of processing from both hemispheres, which are connected by a bundle of fibers called the corpus collosum. (pk1)

© 2011 John W. Collins III and Nancy Patricia O'Brien

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