Specialties

  • Neurodiagnostic Testing We Offer

  • Neurodiagnostic Testing

    Neurodiagnostic testing helps your doctor diagnose conditions of the brain and nervous system . It also helps your doctor differentiate between neurological conditions and other conditions with similar symptoms.

    Neurodiagnostic tests can record electrical activity of the brain, spinal cord and peripheral nerves. They can also evaluate muscle function and the nerves that control them.

    Examples of neurodiagnostic technologies include Electroencephalogram (EEG) to analyze problems in the electrical activity of the brain, Electromyogram (EMG) to analyze muscle and nerve function, and Visual Evoked Potential (VEP, VER) to analyze the visual pathways from the eyes to the brain. See below for detailed information about these tests and others .

    Your doctor may recommend neurodiagnostic testing if you experience:

    • Changes in your hearing or vision
    • Numbness or tingling
    • Seizures
    • Chronic headaches
    • Dizziness
    • Weakness
    • Mental confusion
    • Trembling
    • Muscle spasms

    Patient Resources

    Please talk with your doctor to learn more about the neurodiagnostic testing you will receive. We welcome all questions and are happy to assist you with any special needs you may have.

    Neurodiagnostic tests include:

    • Electroencephalogram (EEG) - A test to find problems in the electrical activity of the brain. This test is done while lying down or sitting in a reclining chair. The technician places 16-25 flat metal disks (electrodes) in different places on your scalp, which are held in place with a sticky paste. The electrodes are connected by wires to a recording device, which stores the results on a computer. The technician may ask you to perform certain tasks during the test - such as breathing fast and deeply or looking at a flashing light. Very little electricity passes from the electrode into your skin, and the only discomfort patients often feel is the presence of the electrodes.
    • Electromyogram (EMG) - A test to check the health of muscles and the nerves that control them. The technician will insert a very thin electrode through the skin into the muscle. The electrode picks up electrical activity from the muscles and transmits it to a computer. After the electrode is placed, you may be asked to contract the muscle (example: bending your arm). The test will provide information on your muscle's ability to respond when the nerves to that muscle are stimulated. You may feel some pain or discomfort when the needle is inserted, and afterward the muscle may feel tender or bruised for a few days.
    • Nerve Conduction Studies (NCS, NCV) - A test to see how fast electrical signals move through a nerve. During this test, surface electrodes called patches are placed on the skin over nerves in various places. Each patch gives off a very mild electrical impulse which stimulates the nerve. Once stimulated, the nerve's electrical activity is recorded by the other electrodes. Based on the distance between electrodes and the time for impulses to travel between them, the technician can determine the speed of nerve signals. Depending on how strong the stimulus is, you will feel it to varying degrees, and it may be uncomfortable. you should feel no pain once the test is finished.
    • Brainstem Auditory Evoked Potential (BAEP, AEP, BAER) - A test to measure the brain wave activity that occurs in response to clicks or certain tones. During the test, you will lie on a reclining bed or chair with a pair of headphones. The technician will place electrodes on your scalp and earlobes. The electrodes pick up your brain's response to the sounds and record them. It is important to remain still for this test - patients may choose to be sedated or may take the test while sleeping or during surgery.
    • Visual Evoked Potential (VEP, VER) - A test to evaluate the visual pathways from the eyes to the brain. The technician places electrodes on the scalp and a patch is placed over one eye. Each eye is tested separately, and the patch will be moved for the second half of the test. During this test, you will watch a video with a moving pattern. The electrodes measure the electrical activity produced by your brain in response to these patterns.
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