EEG – Electroencephalography

This is a test that records the electrical activity of the brain to provide information about its function. Electrodes (small metal discs) are attached to a patient’s head.  They sense and record the electrical impulses in the brain and create a computerized print of the activity. The activity is analyzed by the neurologist to identify any irregularities that might be responsible for a patient’s symptoms.  This is a noninvasive test.

EMG – Electromyography

This test evaluates the electrical activity in muscles and the nerves controlled by them. A thin needle with an electrode is inserted in the muscle where it records information about the muscle’s response.

NCS - Nerve Conduction

This test is that delivers a very mild electrical impulse to measure how quickly electrical currents move down the nerve.