The usual condition where the centres for various functions are located in one cerebral hemisphere.
A kind of dominance of one part of the brain over another.
Intrinsic property of one of the two hemispheres of the human brain such that it often exerts greater control over various bodily functions. Handedness, for example, may be determined by whether the left or the light hemisphere is dominant. In teaching and psychology, the left hemisphere (“left brain”) is felt to be responsible for more detail-oriented tasks (e.g., mathematics, science) while the right hemisphere (“right brain”) provides imagination and abstract thinking ability. There is much overlap, however, and the terms “left brained” and “right brained” are often used somewhat metaphorically.
Concept that one hemisphere of the brain exercises greater control or influence for functions such as speech, analytical thinking, mathematics, spatial perception, and motor control.
The control of speech and handedness by one hemisphere of the brain. In 90% to 95% of human beings, the left cerebral hemisphere is functionally dominant; as a result most people are right-handed. A lesion (e.g., a stroke or tumor) to the left cerebral hemisphere of such people will produce aphasia and right-sided paralysis. Aphasia rarely occurs in right-handed people from a right cerebral lesion. In 60% of left-handed people with aphasia from a cerebral lesion, the left side is affected. In some left-handed patients, it is possible that language function is controlled partially by both the left and right cerebal hemispheres.