BAEP’s are auditory-based tests that are performed to determine how well the auditory nerve conducts signals that travel from the cochlea after the cochlea is stimulated through the brain and brainstem.

First, you will lie down on an exam table and the technician will try to make you as comfortable as possible. The lights will be dimmed, and the technician will take some initial measurements with a grease pencil. This will ensure that the electrode placement is accurate. This pencil will come off after the testing.

Next, the technician will then apply a gel to your skin that will allow the electrodes to connect effectively. The technician will then place several electrodes on your scalp, and either your earlobes or mastoid.

After the electrodes are secured in place, headphones will be placed on your head for the purpose of stimulating the auditory nerve. You will hear a clicking sound in one ear, and “white noise” in the other ear. Each auditory nerve will be stimulated one at a time.

The auditory stimuli will then begin to increase in volume in the ear being stimulated. You will hear the clicking sound for approximately 10-15 minutes. It is okay if you fall asleep during the examination.

After, the clicking sound will switch to the opposite ear, and the process will be repeated. In order to obtain the most accurate results possible, a different type of clicking or increased decibel level may be used, and the test may be repeated.

A BAEP is a painless test. You will experience no pain or discomfort during the test.

Once completed, the technologist will wipe the paste out of your hair. The study will be interpreted by one of our physicians during a follow-up appointment.  A report will also be given to your doctor.

After the test is completed, you are free to resume normal activities.

The test lasts about one hour or less.