Commissural fiber tracts are bundles of nerve fibers that connect corresponding areas of the brain between the two cerebral hemispheres. These tracts allow for communication and coordination between the left and right sides of the brain.
The largest and most well-known commissural fiber tract is the corpus callosum, which connects the two cerebral hemispheres and plays a crucial role in interhemispheric communication. Other commissural fiber tracts in the brain include the anterior commissure, the hippocampal commissure, and the posterior commissure.
The proper functioning of these commissural fiber tracts is essential for many cognitive and motor processes, including language processing, spatial awareness, and the integration of sensory information. Dysfunction or damage to these tracts can result in a range of neurological disorders, including split-brain syndrome, which is characterized by a disconnection between the two cerebral hemispheres.