This article is about specialization of function between the left and right hemispheres of the brain. The lateralization of brain function is the tendency for some neural functions or cognitive processes to be more dominant in one psychology a concise introduction griggs pdf than the other. The medial longitudinal fissure separates the human brain into two distinct cerebral hemispheres, connected by the corpus callosum.
Although the macrostructure of the two hemispheres appears to be almost identical, different composition of neuronal networks allows for specialized function that is different in each hemisphere. Each human’s brain develops differently leading to unique lateralization in individuals. This is different from specialization as lateralization refers only to the function of one structure divided between two hemispheres. Specialization is much easier to observe as a trend since it has a stronger anthropological history.
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, prosody, etc. Another example is that each hemisphere in the brain tends to represent one side of the body. In the cerebellum this is the same bodyside, but in the forebrain this is predominantly the contralateral side.