The purpose of functional mapping is to determine whether boundaries of the operative area overlap or interfere with areas of the brain that support important functions such as speech and movement.
Functional mapping is done by stimulating the brain with a small electrical charge. Since the brain itself has no pain receptors, you should not experience pain or headache from the stimulation.
During the mapping procedure, the neuropsychologist monitors your speech, your movement, and your awareness of sensations. They will ask you to report any unusual sensations. The mapping procedure usually takes 20 to 30 minutes to complete. |
