Evoked response examinations measure conduction in the central nervous system by averaging the electrical response in the brain to a specific stimulus. These tests are non-invasive, free of complications, and involve minimal discomfort to the patient. The evoked responses measured at the Neurology Center office measure response to visual, auditory, and somatosensory.

Hair sprays and treatments should not be used prior to an appointment for an evoked response examination.

VER (Visual Evoked Response):

Visual Evoked Responses evaluate the visual nervous system. Electrodes are attached to the scalp. The patient will focus on a checkerboard pattern on a computer monitor. If you wear glasses or contact lenses you need to wear them during the test. This procedure takes about 45 minutes to complete.

Auditory Evoked Response (BAER):

In this test the patient listens to a rapid (10/second) clicking sound, presented by headphones to one ear at a time, while lying on an examination table. A blocking noise ("static") will be heard in the ear not being tested. This examination takes about 45 minutes routinely but may run significantly longer with patients who have hearing problems.

Somatosensory Evoked Response (SER):

This test evaluates the sensory pathway as an electrical signal travels from the nerve endings in the arms and/or legs to the brain. Please do not apply lotions to your skin on the day of the examination. This test can take up to 2.5 hours.

Please call the clinic at 301-562-7200 if you have questions or need to reschedule. Please provide us with a minimum 24-hour notice as we have a late cancellation/no show fee of $150.