Clinical neurophysiology

Clinical neurophysiology is a diagnostic discipline concerned with measuring electrical activity in the central nervous system, peripheral nervous system and muscle. Patients of all ages and severities of condition are referred by many different specialties in primary and secondary care. Three main categories of investigation are offered, each of which has basic and more advanced tests. Electroencephalography (EEG) is usually a recording of cortical activity. Its principal use is in managing epilepsy, particularly in classification; it has an increasing role in assessing disorders of consciousness and other brain disorders.