Conventional electroencephalography refers to a scalp electroencephalogram that is recorded under normal physiological conditions and in a quiet, comfortable state according to a prescribed uniform method and time.
At present, the most commonly used clinically is the standard electrode placement method recommended by the International Electroencephalography Society, in which FP is the front pole, Z represents the midline electrode, FZ is the amount, CZ is the central point, PZ is the apex, O is the pillow point, T For the defect, A is the earlobe electrode.
The serial number of the above recording electrode is usually represented by an odd number on the left side and an even number on the right side. The number of electrodes placed on the entire scalp and both ears was 21.
The characteristics of this placement method are: the position of the head electrode is more consistent with the anatomical division of the cerebral cortex, the arrangement of the electrodes is proportional to the size and shape of the skull, and the electrodes are placed in the main areas of the head corresponding to the convex surface of the cerebral cortex. .
