cerebral hemisphere

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hemisphere

 [hem´ĭ-sfēr]
half of a spherical or roughly spherical structure or organ.
cerebral hemisphere one of the paired structures constituting the largest part of the brain, which together comprise the extensive cerebral cortex, centrum semiovale, basal ganglia, and rhinencephalon, and contain the lateral ventricle. See also brain.
cerebellar hemisphere either of the paired portions of the cerebellum lateral to the vermis.
dominant hemisphere the cerebral hemisphere that is more concerned than the other in the integration of sensations and the control of many functions. See also laterality.

ce·re·bral hem·i·sphere

[TA]
the large mass of the telencephalon, on either side of the midline, consisting of the cerebral cortex and its associated fiber systems, together with the deeper-lying subcortical telencephalic nuclei (that is, basal nuclei [ganglia]).
Synonym(s): hemispherium cerebri [TA]

cerebral hemisphere

n.
Either of the two symmetrical halves of the cerebrum, as divided by the longitudinal cerebral fissure.

ce·re·bral hem·is·phere

(ser'ĕ-brăl hem'is-fēr') [TA]
1. Synonym(s): hemisphere.
2. The large mass of the telencephalon, on either side of themidline, consisting of the cerebral cortex and its associated fiber systems, together with the deeper-lying subcortical telencephalic nuclei(i.e., basal ganglia [nuclei]).
Synonym(s): hemispherium (1) .
Cerebral hemispheresclick for a larger image
Fig. 98 Cerebral hemispheres . Localization of functions in the human brain.

cerebral hemisphere

one of a pair of large lobes in the forebrain of vertebrates. In reptiles, birds and mammals the coordinating function is dominant and the cerebral hemispheres control most of the activities of the animals, whereas in lower vertebrates the hemispheres are associated mainly with the sense of smell. In mammals the enlargements of the cerebral hemispheres, the largest part of the BRAIN, are caused by the development of the NEOPALLIUM (part of the CEREBRAL CORTEX) which forms the entire roof and sides of the forebrain. The frontal lobes are particularly developed in humans and are the seat of memory, thought and a considerable part of what is considered to be intelligence.

ce·re·bral hem·is·phere

(ser'ĕ-brăl hem'is-fēr') [TA]
Large mass of telencephalon, on either side of midline, consisting of the cerebral cortex and its associated fiber systems, together with the deeper-lying subcortical telencephalic nuclei (i.e., basal nuclei [ganglia]).
References in periodicals archive ?
According to paired t -test (within groups) results, there were significant differences in the brain hemisphere treated with irradiation between preradiation period and all the time points after radiation treatment.
The functions that are controlled by the slower brain hemisphere will be weak, while the functions controlled by the other hemisphere will be normal or even above average.
In our previous studies (1-3), evidences showed that IL-6 levels induced by lipopolysaccharide (LPS)injection were asymmetrically distributed in the two brain hemispheres. Data indicated that IL-6 levels in the right cortices were higher for ambidextrous mice than for right/left-pawed mice.
"Our brains have a left and right hemisphere, so the correct selection of music during learning can stimulate these brain hemispheres and bring about whole brain learning.
The aim of this work was study different measures between right and left brain hemispheres, related in previous studies, comparing 40 cadaveric brains, with follow results:
My research led to some behavioral studies and then to the causes for handedness, which, in turn, led to the dominance and the specific function of the brain hemispheres. The left hemisphere, dominant in the right-handed person, is strong in logical reasoning and counting; whereas the right hemisphere, dominant in the left-handed person, is strong in creativity and artistry.
A boy's corpus callosum, the tissue connecting the brain hemispheres, is up to 25 percent smaller than a girl's.
The MR scans showed that AIDS patients had severe thinning of the gray matter in both brain hemispheres. When the researchers compared MR results from the AIDS patients with those of 14 HIV-negative people, they found 2 major surprises.
On April 30, a computed tomographic (CT) scan of the brain showed multiple lesions in both brain hemispheres, after which the patient was referred to the hospital.
Slater developed epilepsy when she was ten, and suffered such severe and frequent seizures that she underwent surgery, at 13, to relieve the intensity of the electrical discharges as they traveled between brain hemispheres. No one, however, is limited to the sum of his/her physical state, and Slater's character also was informed by her parents' mismatched partnership, her own imaginative world, and the interest her physical condition evoked in healthcare professionals.
Even though most of the literature appears to list characteristics associated with each of the brain hemispheres as dichotomies, the idea of hemispheric dominance suggests that brain hemisphericity operates on a continuum and is not dichotomous (Saleh & Iran-Nejad, 1995).