ABSTRACT
The brain is considered ‘asymmetric but integrated’. Hemispheric specialization is mostly recognized and accepted because supported by several studies, but at the same time the importance of cooperation between the hemispheres in a healthy brain it is emphasized. In the presurgical studies is essential to identify topologically and quantitatively, the location of eloquent areas in order to preserve them as far as possible. A complete analysis requires the use of DTI in an attempt to identify the white matter bundles and the corresponding networks.
