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The best example of an established lateralization is that of Broca's and Wernicke's areas, where both are often found exclusively on the left hemisphere. Function lateralization, such as semantics, intonation, accentuation, and prosody, has since been called into question and largely been found to have a neuronal basis in both hemispheres. [6]
In the mid-19th century scientists first began to make discoveries regarding lateralization of the brain, or differences in anatomy and corresponding function between the brain's two hemispheres. Franz Gall, a German anatomist, was the first to describe what is now known as the Doctrine of Cerebral Localization. Gall believed that, rather than ...
[4] [5] The N170 generally displays right-hemisphere lateralization and has been linked with the structural encoding of faces, hence is considered to be primarily sensitive to faces. [6] [7] A study, employing transcranial magnetic stimulation combined with EEG, found that N170 can be modulated by top-down influences from prefrontal cortex. [8]
a) The right hemisphere has more control over emotion than left hemisphere. [n 2] b) The right hemisphere is dominant in emotional expression in a similar way that the left hemisphere is dominant in language. c) The right hemisphere is dominant in the perception of facial expression, body posture, and prosody.
The contralateral organization of the forebrain (Latin: contra‚ against; latus‚ side; lateral‚ sided) is the property that the hemispheres of the cerebrum and the thalamus represent mainly the contralateral side of the body. Consequently, the left side of the forebrain mostly represents the right side of the body, and the right side of ...
Each cerebral hemisphere has an outer layer of cerebral cortex which is of grey matter and in the interior of the cerebral hemispheres is an inner layer or core of white matter known as the centrum semiovale. [3] The interior portion of the hemispheres of the cerebrum includes the lateral ventricles, the basal ganglia, and the white matter. [4]
Human right cerebral hemisphere. Lateral view (left) and medial view (right). In both images, inferior temporal gyrus labeled at bottom. The areas colored green represent temporal lobe. (Brown is occipital and purple is limbic respectively.) The temporal lobe is unique to primates. In humans, the IT cortex is more complex than their relative ...
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