 It may also be used in research to collect neural data from specific regions of the brain, such as from the auditory cortex for auditory stimulus reconstruction.This technique was introduced in the diagnostic work up of patients with epilepsy by the group of the S. Anne Hospital, Paris, France, in the second half of the 20th century.Intracerebral electrodes are placed within the desired brain areas to record the electrical activity during epileptic seizures, thus contributing to define with accuracy the boundaries of the "epileptogenic zone", i.e.