Apparatus for acquiring electric activity in the brain and utilization of the same

A method of using an electric activity information in brain, the method using an apparatus, which includes:

• one or more needle-like base enabled to be inserted to the brain;
• a first electrode a first impedance and acquiring an input of an electric activity of a brain tissue with which the first electrode comes into contact and being provided at a portion of the at least one of the one or more bases;
• a pair of second electrodes having a second impedance lower than the first impedance, applying an electric stimulation to the brain tissue and being provided at portions of the at least one of the one or more bases,
• wherein the first electrode is positioned at a tip portion of the at least one of the one or more bases and the second electrodes are aligned along the long axis of at least one of the one or more bases at positions closer to a proximal end than the first electrode, and configured to be provided within a range in which the second electrodes are placed in the same nucleus as the first electrode is placed,
• and the method comprising:
• inserting the at least one or more base into the brain so that the first electrode and the second electrodes are positioned within the same nucleus of the brain;
• outputting one or more electric stimulations of one or more single stimulations and/or one or more repetitive stimulations from the second electrodes at the nucleus in which the second electrode is placed;
• receiving one or more electric activities in the brain tissue induced based on the one or more electric stimulations output by the first electrode;
• and
• comparing one or more inhibition and/or excitation patterns based on the one or more electric activities with one or more nucleus-specific inhibition and/or excitation patters pre-acquired by stimulating and receiving within the specific nucleus and identifying whether the first electrode is positioned at the specific nucleus.