Differences in cognition between the ***es has been documented since the last century, with males showing great aptitude on visuospatial tasks and females scoring higher in verbal fluency tests (Allen and Gorksi, 2002).
Recent studies on structural differences in the brain of men and women account for the greater verbal fluency by showing that the corpus callosum (the huge crescent-shaped band of nerve fibers connecting the brain hemispheres) is larger in women than in men (Lippa, 2002).
Since parts of the corpus callosum as well as the anterior commissure, another connector, appear to be larger in women they are thought to permit better communication between hemispheres. The planum temporale, a region of the brain involved in verbal ability has been shown to have greater symmetry in females (Allen and Gorksi, 2002).
Campbell concluded that the female brain is therefore better organized for communication being less lateralized with functions spread over both sides of their brains.
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